CN105082635A - Multicycle energy absorbing structure - Google Patents
Multicycle energy absorbing structure Download PDFInfo
- Publication number
- CN105082635A CN105082635A CN201510530943.XA CN201510530943A CN105082635A CN 105082635 A CN105082635 A CN 105082635A CN 201510530943 A CN201510530943 A CN 201510530943A CN 105082635 A CN105082635 A CN 105082635A
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- China
- Prior art keywords
- hollow
- unit
- energy
- multicycle
- absorbing
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Links
- 239000000463 material Substances 0.000 claims abstract description 26
- 229920006335 epoxy glue Polymers 0.000 claims abstract description 6
- 238000003466 welding Methods 0.000 claims abstract description 4
- 239000010410 layer Substances 0.000 claims description 23
- 239000002131 composite material Substances 0.000 claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 229920002522 Wood fibre Polymers 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 6
- 239000000835 fiber Substances 0.000 claims description 6
- 239000003365 glass fiber Substances 0.000 claims description 6
- 229910001092 metal group alloy Inorganic materials 0.000 claims description 6
- 239000011120 plywood Substances 0.000 claims description 6
- 229920000642 polymer Polymers 0.000 claims description 6
- 239000002025 wood fiber Substances 0.000 claims description 6
- 239000011229 interlayer Substances 0.000 claims description 3
- 230000007935 neutral effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 5
- 230000003139 buffering effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000004080 punching Methods 0.000 description 3
- 238000010146 3D printing Methods 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000005030 aluminium foil Substances 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/28—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer comprising a deformed thin sheet, i.e. the layer having its entire thickness deformed out of the plane, e.g. corrugated, crumpled
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
- B32B2307/212—Electromagnetic interference shielding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/56—Damping, energy absorption
Landscapes
- Laminated Bodies (AREA)
Abstract
The invention discloses a multicycle energy absorbing structure which is composed of an upper-layer board unit, hollow energy absorbing units, a middle sandwich board unit and a lower-layer board unit. The upper-layer board unit is arranged above the hollow energy absorbing unit on the top layer, the lower-layer board unit is arranged above the hollow energy absorbing unit on the bottom layer, the middle sandwich board unit is arranged between the hollow energy absorbing units, adjacent units are spliced by epoxy glue or fixed by means of welding, each hollow energy absorbing unit is formed by a three-dimensional structure of a cone, and a regular N pyramid or a semiellipsoid, wherein n is larger than or equal to 3; altitude of the three-dimensional structure in each hollow energy absorbing unit is perpendicular to the upper-layer board unit and the lower-layer board unit which are parallel to the hollow sandwich board unit mutually. Compared with the prior art, the multicycle energy absorbing structure has the advantages that integral size is reduced greatly, integral density of a material is low, and weight is light.
Description
Technical field
The present invention relates to a kind of endergonic structure, be specifically related to a kind of multicycle endergonic structure.
Background technology
Endergonic structure has buffer protection function to powerful impulsive force, and external impulsive force is converted to energy in it by some change (deformation of such as self structure) that itself can be leaned on to occur, thus reaches the effect absorbing foreign impacts energy.This characteristic of endergonic structure makes it have very important application in fields such as traffic transport device crashproof (anti-collision structure as automobile side), productive life security protection, packed and transported.Optimal endergonic structure should have following features: (1) quality is light; (2) volume is little; (3) energy-absorbing effect is good; (4) the timely release of heat is collided.Existing technologies comprises hollow and thin-walled structure and metal honeycomb structure etc., these materials are more satisfactory at the energy-absorbing effect of certain occasion, but they have common shortcoming, first is that their structure dimension is larger, in collision process, deformation quantity is large simultaneously, and due to design feature, in collision process, structure is uneven for bearing of impulsive force, this makes them can not apply in some important occasion.For example, existing honeycomb aluminum structure has good buffering energy-absorbing effect in collision prevention of vehicle, but if will play good protection effect, its axial length is at the rice order of magnitude.In addition, honeycomb still has larger room for improvement in energy absorbing efficiency (energy that unit mass can absorb).Due to this shortcoming of existing structure, make it can not be applied in the side shield of car.And the side shield of car is the weakest exactly, because there is overall collision energy-absorbing structure design in existing car front, can the safety of available protecting driver and crew to a certain extent.Meanwhile, the driver's cabin of heavy goods vehicle is almost positioned at vehicle body foremost, before also need very strong buffering energy-absorbing structure, this for protection driver and crew meaning very great.
Summary of the invention
To limit the problem of its application scenario because thickness is excessive for solving endergonic structure in the past, the present invention proposes a kind of multicycle endergonic structure, this structure will have the raising of high degree in energy absorbing efficiency, thus reduce overall thickness and quality, greatly expand its application space.
For achieving the above object, the present invention adopts following technical scheme:
A kind of multicycle endergonic structure, this structure is made up of top plate unit, hollow energy-absorbing unit, therebetween core unit and lower plywood unit, top plate unit is provided with above top layer hollow energy-absorbing unit, be provided with lower plywood unit above bottom hollow energy-absorbing unit, between hollow energy-absorbing unit, be provided with therebetween core unit; Adjacent cells is bonding or formed by welding manner is fixing by epoxy glue; Hollow absorbing energy layer is made up of a kind of stereochemical structure in hollow cone, hollow positive n rib centrum or hollow semiellipsoid, n >=3; The high line of described hollow absorbing energy layer neutral body structure is vertical with upper and lower Slab element, upper and lower laminate unit and therebetween core unit parallel to each other.
Number of stories m >=1 of described hollow absorbing energy layer unit, the number of plies of described sandwich panel consists is than being m-1.
Described every one deck hollow energy-absorbing unit structure is identical, and every one deck hollow energy-absorbing unit altitude range is 50nm ~ 1cm.
Described upper and lower laminate element thickness is 1mm ~ 5mm, and therebetween core element thickness is 50nm ~ 2mm.
The ratio of described hollow energy-absorbing unit hollow cone height and hollow cone basal diameter is 1 ~ 10, and the ratio of described hollow energy-absorbing unit hollow positive n rib vertebral height and hollow positive n rib centrum diagonal line length is 1 ~ 10; The ratio of described hollow energy-absorbing unit hollow semiellipsoid height and hollow semiellipsoid bottom surface circular diameter is 1 ~ 10.
Each structure of described hollow energy-absorbing unit has hatch frame, and hatch frame is one or more; Hatch frame is similar to the cross section of the structure at its place, and summit in the same way.
In described hollow energy-absorbing unit, the arrangement mode of structure is regularly arranged, and its unit cell is parallelogram or regular hexagon.
Spatial relationship between adjacent hollow energy-absorbing unit is the projection coincidence between projection coincidence, odd-level between coincidence, even level completely that projects, and the single lattice point of odd-level is projected on the one in the unit cell geometric center of even level.
The interlayer arrangement of described hollow energy-absorbing unit, if definition structure body zenith directions is upwards 1, zenith directions is downwards-1, then the arrangement mode of whole endergonic structure has (1,1,1,1 ...) and (1 ,-1,1 ,-1,1 ...).
The material of described upper and lower laminate unit is paper-like materials, Wood Fiber Composites, carbon fibre composite metal alloy, glass fiber compound material, pottery or artificial polymer's material; The material of described therebetween core unit is paper-like materials, Wood Fiber Composites, carbon fibre composite metal alloy, glass fiber compound material, pottery or artificial polymer's material.
Compared with prior art, the technical solution adopted in the present invention has the following advantages:
1) due to structure hollow, there is comparatively Large space in the multicycle endergonic structure described in, so material monolithic density is low, quality is slim and graceful between plate tissue and plate tissue.
2) the multicycle endergonic structure described in, owing to have employed the hollow centrum of micro/nano level as buffering energy-absorbing structure, in unit length, can obtain more buffer cell, therefore, compared with prior art, its overall dimensions will shorten greatly.The internal layer of car body can be directly applied to, available protecting is carried out to driver and crew." armor " that also can be designed to car door or different structure is attached to the front face outside of car side vehicle door external or heavy goods vehicle.
3) in the multicycle endergonic structure described in, the number of plies of hollow structure array includes but are not limited to one deck, can place size as required, carrys out the number of plies of this array of structures of choose reasonable, simultaneously the number of plies of corresponding increase sandwich panel consists.The thickness of material monolithic also can change with the requirement of application scenario.
4) the multicycle endergonic structure described in, the shape of its entirety can be plate shaped, but is not defined as plate shaped, can be changed accordingly, such as, be applied in motorcycle helmet according to the requirement of application scenario, the profile of the overall helmet of can fitting of structure.
5) the present invention is not limited only to buffering energy-absorbing application, and in the field such as electromagnetic shielding, microwave transmission, through necessarily designing, calculating, the present invention also can play a role.
Accompanying drawing explanation
Fig. 1 is the front view of the present invention's (for hollow cone);
Fig. 2 is left view of the present invention;
Fig. 3 is top view of the present invention;
Fig. 4, the hollow energy-absorbing unit in the present invention can adopt hexagonal pyramid structure;
Fig. 5, the hollow energy-absorbing unit in the present invention can adopt semiellipsoid shell structure;
Fig. 6, central suction energy unit number of stories m >=2, arrangement between layers can be that odd-level overlaps.Even level overlaps, and the odd-level vertex of a cone is projected to even level;
Fig. 7, central suction energy unit number of stories m >=2 can be the arrangement that the vertex of a cone is relative with the vertex of a cone between layers.
Detailed description of the invention
As shown in figs. 1-7, a kind of multicycle endergonic structure, this structure is made up of top plate unit 1, hollow energy-absorbing unit 2, therebetween core unit 4 and lower plywood unit 5, top plate unit is provided with above top layer hollow energy-absorbing unit, be provided with lower plywood unit above bottom hollow energy-absorbing unit, between hollow energy-absorbing unit, be provided with therebetween core unit; Adjacent cells is bonding or formed by welding manner is fixing by epoxy glue; Hollow absorbing energy layer is made up of a kind of stereochemical structure in hollow cone, hollow positive n rib centrum or hollow semiellipsoid, n >=3; The high line of described hollow absorbing energy layer neutral body structure is vertical with upper and lower Slab element, upper and lower laminate unit and therebetween core unit parallel to each other.
Number of stories m >=1 of described hollow absorbing energy layer unit, the number of plies of described sandwich panel consists is than being m-1.
Described every one deck hollow energy-absorbing unit structure is identical, and every one deck hollow energy-absorbing unit altitude range is 50nm ~ 1cm.
Described upper and lower laminate element thickness is 1mm ~ 5mm, and therebetween core element thickness is 50nm ~ 2mm.
The ratio of described hollow energy-absorbing unit hollow cone height and hollow cone basal diameter is 1 ~ 10, and the ratio of described hollow energy-absorbing unit hollow positive n rib vertebral height and hollow positive n rib centrum diagonal line length is 1 ~ 10; The ratio of described hollow energy-absorbing unit hollow semiellipsoid height and hollow semiellipsoid bottom surface circular diameter is 1 ~ 10.
Each structure of described hollow energy-absorbing unit has hatch frame 3, and hatch frame 3 is one or more; Hatch frame is similar to the cross section of the structure at its place, and fixed point in the same way.
In described hollow energy-absorbing unit, the arrangement mode of structure is regularly arranged, and its unit cell is parallelogram or regular hexagon.
Spatial relationship between adjacent hollow energy-absorbing unit is the projection coincidence between projection coincidence, odd-level between coincidence, even level completely that projects, and the single lattice point of odd-level is projected on the one in the unit cell geometric center of even level.
The interlayer arrangement of described hollow energy-absorbing unit, if definition structure body zenith directions is upwards 1, zenith directions is downwards-1, then the arrangement mode of whole endergonic structure has (1,1,1,1 ...) and (1 ,-1,1 ,-1,1 ...).
The material of described upper and lower laminate unit is Wood Fiber Composites, carbon fibre composite metal alloy, glass fiber compound material, pottery or artificial polymer's material; The material of described therebetween core unit is Wood Fiber Composites, carbon fibre composite metal alloy, glass fiber compound material, pottery or artificial polymer's material.
See Fig. 1, this endergonic structure adopts hollow hollow cone.Hatch frame is arranged at the bottom of hollow cone.Wherein the height of hollow cone is 480 μm, and wall thickness is 10 μm, and basal diameter is about 257 μm (outer rings), and the height of centrum bottom opening structure is 100um.Therebetween central layer thickness is 20 μm, and the total number of plies of structure is 40 layers, and upper and lower plate thickness is 2mm.The array of the hollow hollow cone in this structure is arranged as regular square grid in face, and two centrum bottom surface distance of center circle a are 550 μm.Arrangement between layers, what this structure adopted is in the same way, and project the arrangement that overlaps completely.This structure material therefor is aluminium, is 2.4cm by the bonding total integral thickness of epoxy glue between each structure.
The technical process of this structure is simply described below: first utilize fine stamping technology on high-quality aluminium foil, prepare motherboard with a series of conical base hole pattern.Then the punching template of pinpoint accuracy is utilized to carry out punching press to motherboard, obtain that there is hollow cone volume array, for guarantee punching press is respond well and hollow cone top can be good with the adhesive effect of adjacent layer, hollow cone essence is the frustum of a cone cutting a part, and its top diameter is 25 μm (outer rings).Then each layer will be bonding with epoxide-resin glue, obtain overall structure.
Optionally, this structure can utilize MEMS technology or 3D printing technique to realize.
Detailed description of the invention two
This endergonic structure adopts hollow hollow cone.Hatch frame is arranged at the bottom of hollow cone.Wherein the height of hollow cone is 10mm, and wall thickness is 0.1mm, and basal diameter is about 5mm (outer ring), and the height of centrum bottom opening structure is 2mm.Therebetween central layer thickness is 0.1mm, and the total number of plies of structure is 10 layers, and upper and lower plate thickness is 0.2mm.The array of the hollow hollow cone in this structure is arranged as regular square grid in face, and two centrum bottom surface distance of center circle are 10mm.Arrangement between layers, what this structure adopted is in the same way, and project the arrangement that overlaps completely.This structure material therefor is paper, bonding by epoxy glue between each structure.
Claims (10)
1. a multicycle endergonic structure, it is characterized in that: this structure is made up of top plate unit, hollow energy-absorbing unit, therebetween core unit and lower plywood unit, top plate unit is provided with above top layer hollow energy-absorbing unit, be provided with lower plywood unit above bottom hollow energy-absorbing unit, between hollow energy-absorbing unit, be provided with therebetween core unit; Adjacent cells is bonding or formed by welding manner is fixing by epoxy glue; Hollow absorbing energy layer is made up of a kind of stereochemical structure in hollow cone, hollow positive n rib centrum or hollow semiellipsoid, n >=3; The high line of described hollow absorbing energy layer neutral body structure is vertical with upper and lower Slab element, upper and lower laminate unit and therebetween core unit parallel to each other.
2. a kind of multicycle endergonic structure according to claim 1, is characterized in that: number of stories m >=1 of described hollow absorbing energy layer unit, and the number of plies of described sandwich panel consists is than being m-1.
3. a kind of multicycle endergonic structure according to claim 1, is characterized in that: described every one deck hollow energy-absorbing unit structure is identical, and every one deck hollow energy-absorbing unit altitude range is 50nm ~ 1cm.
4. a kind of multicycle endergonic structure according to claim 1, is characterized in that: described upper and lower laminate element thickness is 1mm ~ 5mm, and therebetween core element thickness is 50nm ~ 2mm.
5. a kind of multicycle endergonic structure according to claim 1, it is characterized in that: the ratio of described hollow energy-absorbing unit hollow cone height and hollow cone basal diameter is 1 ~ 10, the ratio of described hollow energy-absorbing unit hollow positive n rib vertebral height and hollow positive n rib centrum diagonal line length is 1 ~ 10; The ratio of described hollow energy-absorbing unit hollow semiellipsoid height and hollow semiellipsoid bottom surface circular diameter is 1 ~ 10.
6. a kind of multicycle endergonic structure according to claim 1, it is characterized in that: each structure of hollow energy-absorbing unit has hatch frame, hatch frame is one or more; Hatch frame is similar to the cross section of the structure at its place, and fixed point in the same way.
7. a kind of multicycle endergonic structure according to claim 1, it is characterized in that: in described hollow energy-absorbing unit, the arrangement mode of structure is regularly arranged, its unit cell is parallelogram or regular hexagon.
8. a kind of multicycle endergonic structure according to claim 1, it is characterized in that: the spatial relationship between adjacent hollow energy-absorbing unit is the projection coincidence between projection coincidence, odd-level between coincidence, even level completely that projects, and the single lattice point of odd-level is projected on the one in the unit cell geometric center of even level.
9. a kind of multicycle endergonic structure according to claim 1, it is characterized in that: the interlayer arrangement of hollow energy-absorbing unit, if definition structure body zenith directions is upwards 1, zenith directions is downwards-1, then the arrangement mode of whole endergonic structure has (1,1,1,1 ...) and (1,-1,1 ,-1,1 ...).
10. a kind of multicycle endergonic structure according to claim 1, is characterized in that: the material of described upper and lower laminate unit is Wood Fiber Composites, carbon fibre composite metal alloy, glass fiber compound material, pottery or artificial polymer's material; The material of described therebetween core unit is Wood Fiber Composites, carbon fibre composite metal alloy, glass fiber compound material, pottery or artificial polymer's material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510530943.XA CN105082635A (en) | 2015-08-26 | 2015-08-26 | Multicycle energy absorbing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510530943.XA CN105082635A (en) | 2015-08-26 | 2015-08-26 | Multicycle energy absorbing structure |
Publications (1)
| Publication Number | Publication Date |
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| CN105082635A true CN105082635A (en) | 2015-11-25 |
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ID=54564370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510530943.XA Pending CN105082635A (en) | 2015-08-26 | 2015-08-26 | Multicycle energy absorbing structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN105082635A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105774052A (en) * | 2016-03-16 | 2016-07-20 | 邓安仲 | Sandwich composite material of column cell structure formed by multilayer overlay of curved bodies |
| CN112013718A (en) * | 2020-07-14 | 2020-12-01 | 清华大学苏州汽车研究院（相城） | Coupling bionic anti-explosion energy-absorbing plate and human body protection device or automobile part |
| CN112497856A (en) * | 2020-12-30 | 2021-03-16 | 中国人民解放军陆军勤务学院 | Multistage series connection column cell body impact load energy absorption structure |
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| US4890877A (en) * | 1988-07-12 | 1990-01-02 | General Motors Corporation | Energy absorption system for vehicle door and method of making |
| JPH11348158A (en) * | 1998-06-11 | 1999-12-21 | Sumitomo Metal Ind Ltd | High-rigidity panel |
| US6074509A (en) * | 1995-11-06 | 2000-06-13 | Pittman; Douglas E. | High strength, lightweight pressurized structure for use as the skin of a spacecraft or other vehicle |
| CN101513781A (en) * | 2009-02-20 | 2009-08-26 | 东莞市格羚塑胶有限公司 | Clad metal sheet with columnar supporting body |
| DE102011009868A1 (en) * | 2011-01-31 | 2012-08-02 | Genima Innovations Marketing Gmbh | Cellular core layer of lightweight panel, has upright and pendant cones or pyramids that are continuously connected to each other, whose side surfaces have identical inclination to form inverted cones or pyramids |
| JP2013043439A (en) * | 2011-08-26 | 2013-03-04 | Ube Industries Ltd | W-shaped or corrugated hollow structure material and method of manufacturing the same |
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| CN203924390U (en) * | 2014-06-20 | 2014-11-05 | 金陵科技学院 | A kind of electromagnetic wave absorption board for building |
| WO2014176800A1 (en) * | 2013-04-28 | 2014-11-06 | Zhang Ruiyang | Improved suitcase |
| CN205130512U (en) * | 2015-08-26 | 2016-04-06 | 杭州电子科技大学 | Multicycle energy -absorbing structure |
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| US4890877A (en) * | 1988-07-12 | 1990-01-02 | General Motors Corporation | Energy absorption system for vehicle door and method of making |
| US6074509A (en) * | 1995-11-06 | 2000-06-13 | Pittman; Douglas E. | High strength, lightweight pressurized structure for use as the skin of a spacecraft or other vehicle |
| JPH11348158A (en) * | 1998-06-11 | 1999-12-21 | Sumitomo Metal Ind Ltd | High-rigidity panel |
| CN101513781A (en) * | 2009-02-20 | 2009-08-26 | 东莞市格羚塑胶有限公司 | Clad metal sheet with columnar supporting body |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105774052A (en) * | 2016-03-16 | 2016-07-20 | 邓安仲 | Sandwich composite material of column cell structure formed by multilayer overlay of curved bodies |
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| CN112013718A (en) * | 2020-07-14 | 2020-12-01 | 清华大学苏州汽车研究院（相城） | Coupling bionic anti-explosion energy-absorbing plate and human body protection device or automobile part |
| CN112497856A (en) * | 2020-12-30 | 2021-03-16 | 中国人民解放军陆军勤务学院 | Multistage series connection column cell body impact load energy absorption structure |
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