WO2014082621A1

WO2014082621A1 - Breakdown protection

Info

Publication number: WO2014082621A1
Application number: PCT/DE2013/000711
Authority: WO
Inventors: Thomas Vorsatz
Original assignee: Thomas Vorsatz
Priority date: 2012-12-02
Filing date: 2013-12-02
Publication date: 2014-06-05
Also published as: DE202012011496U1; DE112013005754A5

Abstract

The invention relates to a breakdown protection, which is formed by a plurality of moulded elements. The moulded elements are in the form of main bodies (1), cover filling bodies (2) and base filling bodies (3), wherein the main bodies form a main body plane that owing to inclined faces of the main bodies has pyramidal depressions both in and between the main bodies and wherein the geometries of the cover filling bodies and of the base filling bodies correspond to the geometry of the depressions. The breakdown protection has a definable flexibility, and as far as possible freely definable surface geometry and a low weight per unit area and has at the same time a good protective effect.

Description

Punch protection

The invention relates to a punch-through protection for protection against projectile-like objects.

Devices for providing a breakdown protection are already known from the prior art.

Known devices are used, for example, in mechanical engineering to protect against components that dissolve at high speeds in the event of a failure, or, for example, in ballistics for protection against bullets or fragmentation, the devices being assigned to soft or hard ballistics depending on the application.

Soft ballistic puncture protection devices typically consist of several layers of tear-resistant fabric, whereby the energy of an impacting projectile is dissipated by destroying or stretching the different layers of fabric.

However, the disadvantage of such softballistic puncture protection devices lies in particular in the fact that they are only suitable for protection against so-called handguns in a technically and economically sensible number of tissue layers and have the same protective effect only partially conditionally close to the first impact, since the same during the energy dissipation multiaxially interacting layers irreversibly delaminate relative to each other. To achieve higher protection classes, in particular for protection against long guns and - adapted to the occurring energies and modes of action - also for large-caliber balancing projectiles and in particular armor-piercing projectiles, in particular hard ballistic puncture protection devices are used in the prior art.

In this case, the impacting projectile are usually opposed plate-shaped elements made of a particularly hard material, wherein the

CONFIRMATION COPY Energy of the projectile is preferably distributed in an impact on the entire surface of the plate-shaped elements and thus degraded.

The disadvantage here, however, lies in particular in the fact that the plate-shaped elements, depending on the protective effect and material used, have a high weight and therefore when using such hard ballistic breakdown protection devices, for example on vehicles, usually compromises between the lowest possible weight and the highest possible Protective effect must be received.

Furthermore, such carbide puncture protection devices are typically used in addition to existing base structures such as vehicle bodies. This means that the hardballistic puncture protection devices are usually additionally applied to the existing load-bearing basic structures, which in particular significantly increases the total weight and the total volume of the enclosed space of an object to be protected.

Furthermore, because of the plate elements used, such a hardballistic breakdown protection device is relatively rigid in itself and therefore can not be adapted without restriction to different contours of an object to be protected.

In order to overcome these disadvantages, it is already known from the prior art to combine hard-ballistic devices with soft-ballistic elements and thereby to provide comparatively flexible puncture-protection devices.

Furthermore, it is known from the prior art to manufacture ballistic protective devices in part from ceramic elements which provide a high degree of hardness and thus a correspondingly desired protective effect at low internal weight. However, the disadvantage of such breakdown protection devices based on ceramic elements is usually that the ceramic elements to provide the required protective effect usually mandatory with other, tensile solid support layers and an upstream sacrificial layer, which is at least partially destroyed by impact of an object or a distraction of the impacting object causes to be connected.

As a result, a puncture protection device which can be provided thus, as a result of the multilayer structure, as a rule requires comparatively high production costs.

A corresponding puncture protection based on ceramic elements is known as bullet-proof plate material from document DE 10 2006 050 130 A1.

The plate material in this case consists of a plurality of conical ceramic / metal bodies, which are connected to a support layer.

The conical design of the ceramic / metal body, it should be prevented according to the invention that set at a curvature of the plate material columns or penetrations, which affect the effectiveness of the Plattenmateri- as against impacting floors.

However, the disadvantage of the solution given here is, in particular, that a projectile impinging obliquely on the plate material may, under certain circumstances, pass between adjoining ceramic / metal bodies onto the supporting layer and through it onto an object to be protected.

The object of the invention is to provide a punch-through protection with improved effectiveness against impacting objects, which has a definable flexibility, a largely freely definable surface geometry and a low basis weight with high protection and which is also easy and inexpensive to produce. The object is solved by the features listed in claim 1. Preferred developments emerge from the subclaims. An inventive penetration protection has an exposure side and a back side.

In this context, the exposure side is understood as the side of the breakdown protection which faces an incident object. In contrast, the rear side refers to the side of the punch-through protection, which faces an object to be protected, wherein the object to be protected can be both an object or a device and a person.

The punch-through protection is formed according to the invention by a plurality of mold elements, wherein the mold elements are present as a base body and filler body and wherein the filler bodies are also present as a cover filler and as a base filler.

According to the invention, the basic bodies are arranged in a basic body plane, wherein the basic body plane forms a middle layer of the penetration protection. In addition, each body has side surfaces. The side surfaces are aligned perpendicular to a center plane of the base body, which runs through the center of the respective base body and parallel to the base body plane. This is illustrated by the side surfaces shown in FIG. 1a by the reference symbols 4.1 and 4.2 in accordance with the exemplary embodiment described in more detail below.

Within the basic body level, the base bodies according to the invention are fixed in a positional relationship to one another such that the side surfaces of adjacent basic bodies are largely aligned parallel to one another.

In the present case, a largely parallel arrangement denotes that the side surfaces of the base bodies are aligned largely plane-parallel to one another, in particular in the case of a planar formation of the penetration protection. In one ner adaptation of the breakdown protection, such as a non-planar object to be protected or in a deformation of the breakdown protection due to a striking object, the largely parallel alignment of the body to each other according to the invention, at least partially, be repealed ben. In the case of a deformation of the puncture protection due to a striking object, the largely parallel alignment is only temporarily suspended, if not a polymeric, but elastomeric matrix material is used to establish the positional relationship or to fill in gaps between the shaped bodies.

Furthermore, depending on the application, the side surfaces of adjacent base bodies can, according to the application, both adjoin one another directly or be spaced apart from one another such that a defined, slight gap is established between the adjacent base bodies.

The setting of the defined gap between the adjacent base bodies offers the particular advantage that the base body in the basic body level can move slightly relative to each other and thus the penetration protection a defined flexibility is assigned, which makes it particularly advantageous that the breakdown protection, for example certain , non-planar contours of objects to be protected can be adjusted.

The main body are formed according to the invention as polyhedra with a regular base.

In this case, the base surface preferably has a rectangular and in particular a square geometry.

As a further feature, the base bodies according to the invention each have a plurality of inclined surfaces on the exposure side. The exposure-side inclined surfaces are inclined relative to the center plane of the associated base body. Adjacent exposition-side surfaces are also inclined to each other.

As a result, it is effected in a particularly advantageous manner that each base body on the exposure side of the breakdown protection has no area, which is aligned parallel to the main body plane.

By the exposure-side inclined surfaces of the body exposition-side, pyramid-shaped depressions are formed according to the invention, which are present in part by inwardly inclined surfaces as depressions in the bodies themselves and to another part by outwardly inclined surfaces as depressions between the bodies.

The exposition-side depressions formed by the inclined surfaces of the basic body are inventively designed such that the geometries of the depressions between the basic bodies substantially correspond to the geometries of the depressions in the basic bodies themselves.

In addition, according to the invention, each base body has, according to the invention, a plurality of inclined surfaces and a surface aligned parallel to the basic body plane, with back-sided, pyramid-shaped depressions being formed between adjacent base bodies by the rear, inclined surfaces.

Depending on the application, the rear base of a body can also be provided by the fact that even in the bodies themselves back depressions, analogous to the exposure-side depressions are provided, which are filled with basic fillers. This variant offers the technological advantage that the basic bodies can be formed symmetrically about the median plane. As a further feature of the invention, the Deckfüllkörper are arranged in a Deckfüllkörperebene. In this context, the covering body level forms an exposure-side outer layer of the penetration protection.

According to the invention, the cover filling bodies have a pyramidal geometry which corresponds to the geometry of the depressions on the exposition side of the basic body.

In this way, it is particularly advantageously possible to fix the cover filling bodies in a positional relationship with the basic bodies in such a way that the cover filling bodies are received by the depressions of the basic bodies on the exposition side.

The inclusion of the deckfill in the exposure-side depressions of the base body is preferably formed so that the Deckfüllkörper complete on the exposure side with the bodies and thus adjusts a largely closed surface of the breakdown protection on the exposure side.

Depending on the application, the cover fillers may have other forms of this surface on the exposure side instead of a flat pyramid basis surface. The cover fillers may further form a layer overlapping cover fill bodies to cover fill bodies and in relation to the base bodies, which already constitutes a layer which is effective in terms of ballistics and energy dissipation. The same applies to the basic filler.

In this case, the inclusion of the cover filling body in the exposure-side depressions is in each case designed such that the cover filling bodies can be moved relative to the basic bodies during an impact event within the depressions. The relative mobility of the filler body is carried out close to the pivot points of the body on the median plane.

The inventive combination of the geometric configurations of the base body and the Deckfüllkörper and the positional relationships between the Deckfüllkörpern and the main bodies, it is considered a special technological Advantage causes a uniform total area is formed by the Deckfüllkörper on the exposure side and that set in the penetration protection according to the invention no linear direct penetrations through which a striking object could pass unhindered by the breakdown contact through to an object to be protected. Thus, in addition to a ballistic protective effect, a puncture protection effect and a trauma-reducing effect can be achieved with only one system.

The coordinated special geometries of basic bodies and Deckfüllkkörpern also cause the advantage that due to the symmetry of the outwardly inclined surfaces of the base body at a curved surface formed from basic bodies of the fulcrum of the curvature between the bodies on the center plane results, which the for the Protective effect small to be kept distance between the bodies, with the Deckfüllkörper sink deeper into the widening depression and the base filler by the narrowing depression relative to the back of the main body level something emerge. The volume that opposes a projectile and thus the protective effect of the system remains largely preserved despite the curvature along the force vectors of the energy input. Depending on the curvature this is even increased, the increase increases with greater curvature, because the static vault tension and the vectors take a longer path through the ballistic masses of the impact protection, the obliquely relative to the exposure side of the impact occurs. The described effects of a curvature apply both when the curvature is generated to produce a desired surface geometry and when the curvature is due to an impact event.

According to the invention, an occurrence of such penetrations by the geometrical formations of the filling bodies is prevented even when the breakdown protection deforms due to the energy of the impacting object. In such a case, possible, between the bodies adjusting or enlarging, column would be further obscured by the, from the exposure-side depressions between the bodies, Deckfüllkörper, as these Deckfüllkörper sink in a Objektinschlag correspondingly deep into the depressions.

In an impact event on a Deckfüllkörper a punctiform acting force of the impacting object is always transferred on the surface of the Deckfüllkörpern on the body as a particular advantage further, whereby a destructivity of the body can be effectively reduced.

This two-dimensional force transmission according to the invention takes place both between the filler bodies accommodated in the depressions in the basic bodies, the base bodies and between the filler bodies accommodated between adjacent base bodies and the base bodies, in each case over the inclined surfaces. In the case of a cover filling body accommodated between the basic bodies, the force transmission takes place on four outwardly inclined surfaces, that is to say on one outwardly inclined surface per basic body of the four basic bodies forming the depression. The outwardly inclined surfaces are in the ideal angle (about 90 degrees) to the expected vector directions from a static point of view, which effectively exploits the material properties, such as the highest compressive strength known from ceramics as a particular advantage.

As a further technological advantage occurs in a impact event by the geometric configurations of the base and Deckfüllkörper to a spatial limit of the destructive effect of the force vectors, since the Known individual moldings (body, Deckfüllkörper and Basisfüllkörper) due to the pyramidal geometry of the depressions and the Deckfüllkörper, in particular the corresponding oblique surfaces, which are modeled on the directions of these force vectors or follow along this direction and beyond the directly affected individual moldings, ne- ben the reduced effect in the direction of impact, also in the lateral direction on the Deckfüllkörper act on the body and thus comes to a formation of resultant compressive forces transverse to a direction of impact of a striking object. The power transmission is done so by the surface-forming positive connection of the individual bodies with the respective packing on mutually reliable supporting but the vectors still in the ideal angle opposing inclined surfaces; However, the individual shaped bodies and optionally their fragments can not escape due to this system-relatedness to each other and because of their positive and preferably additional cohesive bonding in a matrix; they stay stable. Rather, they must largely forward the energies laterally to neighboring shaped bodies (which pass the energy laterally back to their adjacent shaped bodies, etc.), which is a desired effect and represents a particular advantage according to the invention - in contrast to the disadvantages of a classic armor Monoliths of the prior art. Although these monoliths initially absorb some energy as a plate, they are unable to withstand the kinetic momentum in a manner proportional to their surface; they are pulverized at this point, then release the energy only in the direction of impact (which is why massive backing takes place, for example, behind the breastplates of protective vests) and moreover suffer disproportionately from the secondary damage due to the extensive ridge extension far beyond the actual caliber surface are therefore not multi-capable. In contrast, the breakdown protection according to the invention is not based on monoliths, but rather shows a small segmentation with a solution for a reliable power transmission between the shaped bodies, inter alia, by means of their particular geometry. Even if a main body should be overloaded in a impact event, it comes only through the interaction of the geometries of Deckfüllkörper and the depression in the affected body cracking to form body fragments with remaining inclined surfaces, so that the illustrated principles of power transmission for this Basic body fragments apply. The reason- Body fragments must also largely forward the energies also laterally to adjacent shaped bodies and preferably to a backing suitable for this purpose (which may also be integrated in a fiber-reinforced matrix).

According to the invention, the energy of an impacting object is reduced on the one hand by the force decomposition into individual force vectors and two-dimensional transmission of the individual force vectors from the top fill bodies into the base body and optionally further to adjacent base bodies and, if appropriate, additionally by destruction of the affected cover fill bodies. Furthermore, a further reduction of the object energy can occur through a partial destruction of the main body.

Furthermore, in the event of an impact on the cover fill body arranged between the basic bodies, the impact force of the object is always distributed over a plurality of main bodies. Depending on the circumstances, a destruction of the hit Deckfüllkörpers with the associated additional energy conversion can occur. As a further feature of the breakdown protection according to the invention, the base filler bodies are arranged in a base filler plane and have a pyramidal geometry, the base filler plane according to the invention forms the back and thus the object to be protected facing inner layer of the breakdown protection and wherein the pyramidal geometry of the base filler according to the invention the geometry corresponds to the depressions formed on the back of the body.

In addition, the basic filling bodies are fixed in a positional relationship with the basic bodies in such a way that, due to their geometry, the basic filling bodies are accommodated by the rear depressions between adjacent basic bodies. Here, too, the inclusion of the basic filling body in the backward submissions takes place in such a way that the basic filling bodies are movable relative to the basic bodies during an impact event within the depressions.

Due to the geometrical design of the base filler, in combination with the base body plane parallel back surfaces of the body, a further uniform overall surface is formed particularly advantageous on the back of the puncture protection, through which for the first occurrence of linear penetrations within the penetration protection also prevents and Second, a distribution of forces on the largest possible area is possible.

At the same time, the flexibility of the breakdown protection is maintained by the relative mobility between the basic filling bodies and the basic bodies.

As a particular advantage of the invention, it can be provided that the impact forces of the object into different force vectors can be provided by the inventive formations of the shaped elements in the event of an impact of an object, the force vectors being due to the pyramid-like geometry of the depressions and the cover filling body, in particular the corresponding inclined surfaces, act on the base bodies in the lateral direction via the cover filling bodies and thus results in the formation of resultant compressive forces transversely to a direction of impact of a striking object, which can be accommodated particularly well by the shaped elements and in particular the base bodies and can be distributed to a variety of form elements.

Furthermore, the degradation of the kinetic energy of a striking object takes place primarily by an at least partial destruction of the mold elements, in particular the cover filler. Due to its advantageous properties, a breakdown protection according to the invention is suitable both for use as ballistic protection and for the protection of sensitive objects or structures from fragments or fragments of other objects which dissolve in their vicinity.

Because of the small segmentation according to the invention by the majority of the form elements as well as the geometry of all shaped bodies which orientates on the typically occurring force vectors, a breakdown protection is provided which is less prone to crack propagation and extensive or even complete destruction due to a striking object and thus to multiple events holds (multi-hit capability) and which can be adapted due to its flexibility particularly advantageous to the shape of different objects to be protected.

For example, by using the punch-through protection, it is possible to provide enclosures for critical objects, in which, for example, as a result of object rotation, detachment of individual segments may occur.

Small segmentation also has the advantage of a much higher resistance to detrimental damage in daily use, for example in the West or particularly exposed vehicle parts, which would lead to a total loss of protective effect or at least the multi-hit capability of monolithic ceramic or other armor plates reached. In a particularly advantageous development of the invention, the geometries of the back depressions of the base body correspond to the geometries of the exposure-side depressions of the base body.

Due to the same geometries of the attack and back depressions, it is possible in a particularly advantageous manner that the cover and Basisfüllkörper can also have the same geometries. One with the Deckfüllkörpern identical geometry of the basic filler reduces the variety of variants of the body geometries involved, which reduces the cost of production. Thus, no differently shaped mold elements for cover and base filler must be provided. In addition, cost-reducing effect is that the filler bodies can be easily fastened to corresponding substrate webs by the surface-forming base surfaces and thus can be pre-positioned exactly. In the further course of production, the alignment and spacing of the basic body can be defined by means of the filler bodies pre-positioned on substrate webs by completing the subsystems of random packings and basic bodies. Thus, a toleranzenger, automated manufacturing process is possible.

Furthermore, the basic body as such are easier to produce.

In this way, the provision costs for a penetration protection according to the invention can be reduced.

In an equally advantageous embodiment of the punch-through protection, the base body and the filler body are so set in a positional relationship to one another that a diagonal of the base surface of a respective filler body is aligned parallel to a side surface of a respectively associated base body. This development makes it possible to reliably ensure that each, potentially at risk of penetration, crossing point of joints is covered by a filling body. A further advantageous variant of the invention provides that the cover filler have a greater hardness than the base body.

It is thereby effected in an advantageous manner that the Deckfüllkörper, which offer a striking object a relatively large attack surface are less easily damaged by the impacting object or even destroy. The cover fillers are supported by a static view broad base, formed by the base body and base filler and preferably by a matrix supporting this. Furthermore, it is caused by the greater hardness that are brought by the Deckfüllkörper projectiles for fragmentation, deformation, deflection, tumbling or a combination of directional and energy-changing effects.

In return, for the main body, which provide the forces introduced by a striking object on the inclined surfaces a relatively large attack surface with appropriate distribution, a tendentious less hard but more fracture, bending-resistant and cheaper material than for the Deckfüllkörper be used, which is the expected Loads of the body is better adapted.

Thus, a good cost-benefit ratio is preserved in terms of the amount of harder to be used and regularly more expensive material.

The form elements of the breakdown protection according to the invention consist in a preferred embodiment of a ceramic material.

According to the invention, all ceramic or ceramic composite materials suitable according to their material properties and ceramic fiber composite materials can be used as the ceramic material.

Through the use of a ceramic material, it is possible to provide molded elements which, at a low intrinsic weight, have a high hardness and a high resistance to heat and corrosion.

In particular, in a long-term application of the breakdown protection, the corrosion resistance plays a major role, as this can be effectively prevented by a possible removal of the breakdown protection by corrosion. Another advantage is the achievable aging insensitivity, with the example of the disadvantage of accelerated decomposition of the material caused, inter alia, by moisture such as body sweat, combat and care products as well as UV exposure to sensitive materials such as aramids.

Furthermore, the ceramic material used according to the invention has a high compressive strength, which, especially in combination with the formation of compressive forces within the breakdown protection, leads to an increase in the breakdown protection capability.

A further advantageous variant of the invention provides that the formula elements are additionally provided with a coating for increasing the surface hardness.

By such a coating of the mold elements, the breakdown protection capability of the breakdown protection can be further increased.

In addition, such a coating also allows the selective use of a refined, less surface-hardened material for the mold elements, which can also reduce the cost of providing punch-through protection.

In a particularly advantageous embodiment of the invention, the form elements are incorporated in a fiber-reinforced matrix material.

The matrix material in this case has both shaping as well as shear, tensile and bending-resistant properties and is provided for example by a GRP or CFK material.

Such an embedding of the mold elements in the matrix material increases on the one hand the breakdown protection capability of the breakdown protection in that the mold elements are held together by the matrix material and thus do not move away from each other in an impact of an object, but invest in impact action together. In this way, the impact action particularly advantageously leads to a toughness of the breakdown protection, which sets the increased breakdown protection capability. An equally advantageous embodiment of the invention provide that the breakdown protection is designed as a structurally resilient component. The supporting structure is formed by the interaction of the shaped bodies with a material filling the intermediate spaces, preferably a fiber-reinforced matrix material.

In this embodiment, by embedding the form elements of the breakdown protection in a matrix material, shaping and in particular load-bearing, or structurally load-bearing breakdown protection components or structures can be provided, which make it particularly advantageous that when such viable breakdown protection components or structures are applied to a conventional one , forming and supporting substructure can be dispensed with. The breakdown protection itself assumes the function of the support structure. The advantage lies in the significant material and mass savings, which is particularly relevant for use on vehicles, including aircraft and persons.

In particular, in the presence of the breakdown protection in a structurally resilient component can be provided by such

Punch protection components or structures, for example, body parts are made for armored vehicles.

Due to the unnecessary substructure, the body components which can be provided in this way have a significant weight advantage over conventional armored body elements, in which a puncture protection generally also has to be applied to existing body elements. As a result, in particular armored vehicles can be provided, which at a comparable penetration protection capability have significantly lower overall weight and which are thus more manoeuvrable and faster than conventional armored vehicles and on the other hand have significantly lower fuel consumption and wear and are much richer to transport by plane.

Depending on the specific material, the breakdown protection structures according to the invention also behave neutrally or actively deceiving against electromagnetic radiation and microwave radiation and have particularly attractive infrared signatures, whereby, in particular when using such breakdown protection structures for land, water and or aircraft, corresponding stealth characteristics can be implemented.

Moreover, the puncture protection according to the invention can also be present as a constituent part of a body armor, in particular for the protection of persons.

In this case, the inventively foreseeable flexibility of the puncture protection makes it possible in a particularly advantageous manner to adapt a body armor such that can be provided to the body of the person to be protected, which offers a high degree of wearing comfort with a simultaneously high puncture protection capability.

As a particular advantage can thus be provided with the same moldings on the one hand a support structure forming puncture protection and on the other hand, a flexible puncture protection, which is also suitable for permanently flexible loaded components such as vehicle tires, especially military vehicles.

Furthermore, a preferred embodiment of the invention provides that the puncture protection is present as part of a multilayered ballistic protection. The breakthrough protection according to the invention can in particular another ballistic protective layer and thus be part of an overall system with increased protection.

In combination with a special design, for example, according to Schott principle, with nach-, intermediate or upstream shell in refractory ceramic material offers the breakdown protection also a very compact protection against so-called subcaliber metal melting projectiles, as these first splinters and distributes the balancing energy and can then be intercepted in a non-sensitive for melting sequence of, inter alia, refractory layers.

The invention will be described in embodiments with reference to

Fig. 1 a single view basic body

Fig. 1 b main body arrangement

Fig. 2 single view deck filler

Fig. 3a perspective exploded view Exposure side

Fig. 3b perspective exploded view back

Fig. 4 sectional view of a structurally resilient ballistic component explained in more detail.

An inventive breakdown protection is used in the following embodiments for protection against impacting objects or parts thereof. In this case, the breakdown protection on, one of the impacting object facing exposure side and one of these opposite and to be protected object facing the back. The breakdown protection according to the invention is formed on the one hand from a plurality of basic body 1.

Such a basic body 1 is shown in a perspective view in FIG. 1a.

The base body 1 are formed in the present embodiment as a polyhedron having a regular base, each base body 1 has a total of four side surfaces 4. Fig. 1 b shows a basic arrangement of the base body 1 in a penetration protection according to the invention.

In the present case, the base bodies 1 are arranged in a positional relationship to one another in a base body plane formed by the latter, such that the side surfaces 4 of adjacent base bodies 1 are aligned substantially parallel to one another.

Furthermore, according to the invention, the base bodies 1 are arranged within the penetration protection in such a way that a small, defined gap a remains between them.

Due to the gap a, the base bodies 1 are allowed to move relative to each other as a function of the gap width.

By providing the gap a between adjacent basic bodies 1, a flexibility of the breakdown protection according to the invention can be provided, which makes it possible, as a particular advantage, for example, to adapt to uneven objects to be protected.

According to FIG. 1 a, each basic body 1 furthermore has a plurality of inclined surfaces 5 on the exposure side.

The inclined surfaces 5 can be distinguished into inwardly inclined surfaces 5.1 and outwardly inclined surfaces 5.2. Exposure-side depressions are formed by the inclined surfaces 5 according to the invention, wherein depressions are formed within a base body 1 and through the outwardly inclined surfaces 5.2 by the inwardly inclined surfaces 5.1 depressions between respectively adjacent basic bodies 1 and wherein the inclined ones Surfaces 5 formed depressions on the exposure side further have a pyramidal geometry.

On the other hand, a penetration protection according to the invention is formed by a plurality of filling bodies, which are present as cover filling bodies 2 and as base filling bodies 3.

The cover fillers 2 are in this case arranged on the exposure side of the breakdown protection in a Deckfüllkörperebene, whereas the Basisfüllkörper 3 are arranged on the back of the breakdown protection in a Basisfüllkörperebene.

An inventive filler is shown in Fig. 2, wherein the filler shown here is designed as a cover filler 2.

In the present embodiments, the Deckfüllkörper 2 and the base filler 3 are formed identically, which is why dispense with a separate individual representation of Basisfüllkörper.

According to the invention, the filler 2 shown in FIG. 2 has a pyramidal geometry, which particularly advantageously corresponds to the geometry of the depressions on the side in and between the basic bodies 1. In this case, the cover filler 2 has a plurality of inclined surfaces 10.

3a shows an exploded view of a portion of a breakdown protection according to the invention as seen from the exposure side, whereas FIG. 3b shows an exploded view of a portion of the breakdown protection, seen from the rear side. Fig. 4 shows an exemplary embodiment of a possible application of the breakdown protection within a structurally resilient ballistic component. As shown in FIG. 4, the cover fillers 2 can be fixed in a positional relationship to the base bodies 2 in such a way that the cover fillers 2 are accommodated in and between the base bodies 1 by the exposition-side depressions and the inclined surfaces 10 of the cover fill bodies 2 inclined surfaces 5 of the base body 1 correspond, wherein the inclined surfaces 10 of a disposed between adjacent bodies 1, 2 Füllfüllkörpers opposite the inclined surfaces 5.2 of the base body 1 and wherein the inclined surfaces 10 of a arranged in a base body 1, Deckfüllkörpers 2 the inclined surfaces 5.1 opposite the main body 1. Due to the geometrical design of the cover filling body 2, a uniform overall surface is formed on the exposure side in a particularly advantageous manner, the cover filling bodies 2 covering the areas between adjacent basic bodies 1, and in this way an occurrence of linear penetrations through which a striking object approaches. could pass through unhindered by the breakdown protection, is effectively prevented.

At the same time it is also advantageously effected by the inventive design of the base body 1 and the Deckfüllkörper 2 that an overlap of the spaces between adjacent bodies 1 by the Deckfüll- 2 is provided, which also in a, as shown in Fig. 4, the curvature of Protection against breakdown is maintained.

Furthermore, according to the invention, also the basic filling bodies 3 are fixed in a positional relationship with the basic bodies 1, in which case the basic filling bodies 3 are received by backward depressions between the basic bodies 1. As shown in Fig. 3b, the rear depressions between the basic bodies 1, analogous to the exposure-side depressions between the basic bodies 1, formed by back-inclined surfaces of the base body 1. In contrast to the design of the base body 1 on the exposure side, the base body 1 itself, on the back, no depression. Rather, in the present case, as shown in FIG. 3b, a surface 7, which is aligned parallel to the basic body plane, is provided on the rear side of the base body 1. As shown particularly in FIG. 4, a further, uniform surface is formed on the rear side of the breakdown protection on the back of the breakdown protection by the base filler 3 in combination with the surfaces 7 of the base body 1 and in this way the occurrence of linear penetrations, even with a curvature the punch-through protection, additionally prevented.

As a particular advantage of the invention, it is caused by the geometric configurations of the base body 1 and the cover and base fillers 2 and 3, that the impact forces of a striking object (not shown), when striking the breakdown protection, are decomposed into force vectors of different directions and that in this way a particularly effective reduction of the energy of the impacting object is achieved.

In particular, it is achieved by the formation of the base body 1 and the filler 2, that between them in an impact of an object always form only compressive forces, which are distributed over the surface in the breakdown protection.

In addition, a particularly small-segmented breakdown protection is provided by the inventive construction of the base body 1 and the cover and Basisfüllkörper 2 and 3, which has a significantly improved multi-hit capability as a further technological advantage. In the present embodiments, both the base body 1 and the cover and base fillers 2 and 3 are formed from a ceramic material.

The use of ceramic material offers the particular advantages that a penetration protection with a low weight can be provided and that the ceramic material is particularly pressure-stable.

The particularly high pressure stability, especially the basic body 1, in combination with the formation of the compressive forces between the basic bodies 1 and the filler bodies 2, enables a particularly effective removal of even large energy-polluting objects.

An inventive puncture protection is particularly suitable for providing a structurally resilient ballistic component.

Such a ballistic component can be present, for example, as a body element of a tank-armored vehicle (not shown).

As shown in FIG. 4, provision is made according to the invention for providing such a ballistic component, in which the base body 1 and the cover and base filling bodies 2 and 3 are embedded in a matrix material. Thus, the breakdown protection according to the invention is now available as an integral part of the ballistic component. The advantage lies in the dual function of ballistic protection and structural resilience.

The matrix material is preferably formed fiber-reinforced and is formed in the present embodiment by CFRP.

To further increase the protective capability, the breakdown protection according to the invention, as shown in Fig. 4, can be combined with other ballistic layers.

In the present case, the further ballistic layers are embedded in the matrix material and are therefore also present as an integral part of the structurally loadable ballistic component. In addition, it can also be provided according to the invention to connect the base body 1 and the cover and base fillers 2 and 3 of the breakdown protection, in addition to their embedding in the matrix material, with the other ballistic layers.

Used reference signs

1 main body

2 cover fillers

3 basic fillers

4 side surfaces of the main body

5 exposition-side inclined surfaces of the body

6 back inclined surfaces of the body

7 to the basic body plane parallel surface of the main body 8 matrix material

9 ballistic layers

10 inclined surfaces of the Deckfüllkörpers

Claims

claims

1 . Punch-through protection, comprising an exposure side and a rear side, and comprising a plurality of mold elements, wherein the mold elements are present as a base body (1) and as a filling body and wherein the filling bodies are present as a cover filler body (2) and as a base filler body (3),

wherein the base bodies (1) are arranged in a base body plane and wherein the base bodies (1) have side surfaces (4) and wherein the base bodies (1) are fixed in the base body plane in a positional relationship to one another such that the side surfaces (4) are adjacent Basic body (1) are aligned as far as possible parallel to each other,

and wherein the base bodies (1) are designed as polyhedra with a regular base area,

and wherein the base body (1) on the exposition side a plurality of inclined surfaces (5), wherein the exposure-side inclined surfaces (5) exposition-side, pyramid-shaped depressions are formed, which in part as depressions in the basic bodies (1) and to a further part as depressions between the basic bodies (1), the geometries of the depressions between the basic bodies (1) corresponding to the geometries of the depressions in the basic bodies (1),

and wherein the main body (1) on the backside a plurality of inclined surfaces (6) and in each case a parallel to the base plane aligned surface (7), wherein the back, inclined surfaces (6) rear, pyramidal depressions are formed, which between the bottom - bodies (1) are present,

and wherein the cover filling bodies (2) are arranged in a cover filling body plane and wherein the cover filling bodies (2) have a pyramidal geometry which corresponds to the geometry of the exposure-side depressions of the basic body (1) and wherein the cover filling bodies (2) are in a positional relationship to the basic bodies (1) are determined that the Deckfüllkörper (2) are absorbed by the exposure-side depressions of the base body (1) and wherein a first total area is formed by the cover filling bodies (1) on the exposure side,

and wherein the base filler bodies (3) are arranged in a base filler body plane and wherein the base filler bodies (3) have a pyramidal geometry which corresponds to the geometry of the rear depressions of the base bodies (1) and wherein the base filler bodies (3) are in a positional relationship to the basic bodies (1) are determined that the basic filling body (3) are received by the rear depressions

and wherein by the base filler (3) in combination with, parallel to the base body plane aligned surfaces (7) of the base body (1) is formed a second total area.

2. punch-through protection according to claim 1,

the geometries of the back depressions correspond to the geometries of the exposition-side depressions.

3. punch-through protection according to claim 1 or 2,

wherein the base body (1) and the filling bodies (2, 3) are fixed in a positional relationship to one another such that one diagonal of a respective filler body (2, 3) is aligned parallel to a side surface (4) of a respectively adjacent base body (1) is.

4. punch-through protection according to one of the preceding claims, wherein the Deckfüll body (2) have a greater hardness than the base body (1).

5. punch-through protection according to one of the preceding claims, wherein the molded elements consist of a ceramic material.

6. punch-through protection according to one of the preceding claims, wherein the mold elements are provided with a coating to increase the surface hardness.

7. punch-through protection according to one of the preceding claims, wherein the mold elements are embedded in a fiber-reinforced matrix material (8).

8. punch-through protection according to claim 7,

wherein the breakdown protection is designed as a structurally resilient component.

9. punch-through protection according to claim 7 or 8,

wherein the puncture protection is present as part of a multi-layered ballistic protection and wherein the form elements with other ballistic layers (9) can be combined.

THERE ARE FIVE PAGES DRAWINGS