CN1052733A

CN1052733A - The light compound material board shell of anti-springing and anti-striking

Info

Publication number: CN1052733A
Application number: CN 89106881
Authority: CN
Inventors: 施军
Original assignee: 施宁
Priority date: 1989-12-21
Filing date: 1989-12-21
Publication date: 1991-07-03

Abstract

The present invention we can say and designed a kind of light armoring material that purpose is to be used to defend small arms to attack and the opposing foreign object strike.This plate shell utilizes common common material, realize required various function by composite construction, make that structure is shellproof, crashworthiness, wear-resisting, difficult combustion and production technology be simple, according to simple experiment, this material only compares index of bulletproof ability, when effect is identical, only be half weight of common iron.This plate shell can be widely used in makes cash transport vehicle, police car, coast-guard cutter, military vehicle fuel tank, senior yacht etc.

Description

The light compound material board shell of anti-springing and anti-striking

In the contemporary industry product, require portioned product to have certain shellproof, anti-collision, as bulletproof car, revenue cutter, aircraft cockpit or the like, and another common feature of these products requires also very harsh to own wt.

Theoretical all confirmed advantages such as fibre reinforced plastics (FRP) have specific strength, specific stiffness is big, and corrosion-resistant, designability is good with experiment, in addition evidence GFRP, KFRP than penetration resistance also greater than metal (steel).But comparatively speaking, metal material then is that intensity height, modulus are big, and absolute penetration resistance is big.These two kinds of main materials are combined, fully utilize their characteristics and form light-duty protective materials, from this century the forties just the someone repay examination, example is also arranged successfully, as the plate armour of U.S. M-1 tank, Soviet Union T-72 tank armor.The present invention only attacks and resist big foreign object strike at the defence small arms and weight own requires tighter occasion to design a kind of composite corrosion-resistant, the difficult to burn characteristics that also has concurrently, when this structural material applications is on body of a motor car, automobile will have shellproof effect, and can guarantee to collide, the safety of passenger and goods when overturning.Corrosion resistant characteristic makes the vehicle body life-span can reach 15-20, surpasses the life-span of metal body 5-10.

Fig. 1 has represented this material structure, and it is structure laminated by four kinds of typical materials and that form substantially, can add that also two-layer auxiliary layer makes material behavior better.(1) layer is metal book plate, middle book plate, and this laminate is mainly used itself and bullet same rigidity, makes bump bullet distortion, changes the bullet nose shape, cuts down the bullet penetration capacity, can weaken bullet kinetic energy greatly owing to its absolute penetration resistance simultaneously; In addition, this layer material stops the FRP layering in addition, stops the make moist function of gas cut erosion of FRP.

(2) layer is the FRP layer, and these layer materials are owing to heterogeneous body, and the anisotropy characteristics can make the dispersion of armor-piercing bullet jet, bending, and reticular fibre can be denuded bullet, and the bullet that can tangle after fiber is disrumpent feelings makes the bullet distortion, sponges a large amount of kinetic energy.This material is bigger than penetration resistance, thereby has alleviated part-structure weight.From the foreign object strike angle, FRP can bear large deformation, thereby absorbs Impact energy, and residual deformation is very little, and easily repair damaged back.This material damage mainly is to open layer based on interlayer, and metallic plate constraint in front and back can reduce opens layer, reduces interlayer shear stress and destroys.

(3) layer is wire netting/hard filler/resin bed, and wire netting intensity is big, and morphotropism is good.The twine exposed surface area is big and other material adhesive performance is good.Light weight is inexpensive.After filling hard filler in the screening, particle abrasion bullet, twine at random distributes and can make bullet be subjected to eccentric resistance, changes the bullet direction of advance, makes bullet have traversing and deflection.

(4) layer is a laminboard layer, and this layer material weight is extremely light, but can greatly improve the structure bending rigidity, absorbs the strain wave energy; When header board was subjected to clashing into, sandwich had the effect of buffer spring, moreover its damped vibration energy, noise effects are also satisfactory.The large deformation energy-absorbing of soft sandwich makes structural material reduce than simple sheet material damage field.

The A layer is an auxiliary functional layers, is thin FRP and resin-rich layer, and difficult combustion, corrosion-resistant can be made the very high multiple decorative effect of surface quality, has also protected the metal covering flaggy not contact with environment, prevents metal erosion.

The B layer is the ductile adhesive layer, and also thin FRP can make metal backing improve toughness, the anti-better effects if that plays, and as bonding agent bonding in passing internal decorative layer.

The production technology of this composite construction can be a hand lay-up, also can be that semi-mechanization is shaped, and wherein used metallic plate or wire netting will have the rust cleaning operation, bring into play with proof strength.When hand lay-up, with GFRP hand shop resemble process, brushing releasing agent on mould connects order shop successively, then until backboard earlier.If can pressurize in cure stage, the structural material stiffness can be better.To shell structure, metallic plate, wire netting, sandwich will have preformed, and accuracy can be relaxed.When semi-mechanization was produced, solely layer can first compression molding for each, also can the compression molding together of several independent stratums, then each gluing of surfaces is carried out decontamination, and remove wet goods and handle, the more stacking adduction of the required all material of structure is bonded together.Cross the havoc bonding layer in order to prevent thermal stress, also energy-absorbing modes utilization and reduce damaged area when guaranteeing anti-foreign object strike, sheet-metal layers in the material structure generally is made up of the polylith metallic plate, every full-size limited (according to environment for use, using strength of materials decision).

This class compound material board shell convenient formation, less demanding to mould, and also line style is good, and surface quality is good, and averag density is little, and cost is low.Can be mainly used in the manufacturing bullet-proof car, cash transport vehicle, field ambulance, archaeology car, camper, the vehicle body of extraordinary police car, speedboat ship body, senior yacht ship body and safety door, insurance transport case, military vehicle fuel tank, movable sentry box, sports goods etc.

The plate shell material is formed structure

1. sheet metal layers 4. foam sandwich laminates

2.FRP layer A. protects decorative layer outward

3. wire netting/hard filler B. toughness glue-line

Claims

1, a kind of being mainly used in driven that anti-small arms are attacked and do not decreased when being subjected to foreign object strike or the light compound material board shell of little damage; it is characterized in that: panel and backboard are metals; intermediate structure is a fiber-reinforced plastic layer; wire netting/hard filler/resin and laminboard layer, panel and backboard outside can respectively have layer protective layer or function, decorative layer again.

2, panel and the backboard in the claim (1) mainly is book steel plate or middle book steel plate, also alloy aluminium sheet.Steel plate thickness is greater than 0.5mm.

3, the FRP layer in the claim (1), but fiber glass fibre, the Keular fiber also can add the part carbon fiber again and form assorted fibre; But resin epoxy, unsaturated polyester, polyurethane, phenolic resins and other thermoplastic resin (as PP, PC), have been dosed filler, fire retardant, diluent, mill base etc. in the resin.

4, the wire netting/hard filler/resin bed in the claim (1), wire netting mainly is a steel wire, also other metal; But hard filler SiC, Al ₂O ₃, SiO ₂, glass microballoon and other ceramic particle, the coupling agent treatment mistake will be used in their surfaces; Resin is various thermosettings, thermoplastic resin, is determined by manufacturing technique requirent.The wire netting here, the grid length of side is greater than 3mm.

5, the sandwich in the claim (1) can be multiple foamed plastics, also can be the honeycomb of various materials, can also be cork etc., and sandwich thickness is generally greater than 10mm.

6, the panel decorative layer in the claim (1), the backboard toughening layer can be various suitable resins, wherein also can mix small amount of fibers, but mill base, fire retardant are indispensable, and thickness is all greater than 0.5mm.

7, the wire netting/hard filler/resin bed in the claim (1) is looked requirement also can have multilayer to be scattered in the FRP layer, and single-layer metal net thickness should not be greater than 2.5mm.