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Truss type periodic cellular materials having internal cells, some of which are filled with solid materials

A technology of porous materials and solid materials, applied in thin material processing, wire processing, wire mesh, etc., can solve the problems of small and insufficient shock absorption capacity, achieve the effects of suppressing buckling, reducing costs, and realizing mass production

Inactive Publication Date: 2011-06-22
IND FOUND OF CHONNAM NAT UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the stability of the truss-type porous material using such high-strength wires, fibers or fiber-reinforced plastics and the shock-absorbing capacity for deformation energy become small, which is not enough when used in a frame

Method used

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  • Truss type periodic cellular materials having internal cells, some of which are filled with solid materials
  • Truss type periodic cellular materials having internal cells, some of which are filled with solid materials
  • Truss type periodic cellular materials having internal cells, some of which are filled with solid materials

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0051] Figure 7 是示出规则的六边形桁架式多孔材料的示例性立体图,其中一部分内孔填充有固体材料。

[0052] according to Figure 7 的第一实施方式,在上下左右方向上相继交替地选出的一部分内孔100填充有固体材料200。

[0053] 尽管通常已知正则六面体桁架的结构稳定性相当低,但根据该实施方式的填料200约束所有桁架元件,从而桁架元件自身的屈曲可被抑制,并且使得整个多孔材料的结构稳定性可明显地提高。同时,由于全部内孔的四分之一被填充有固体材料,因此,多孔材料的多孔性一定程度上降低。

[0054] 如上所述,还优选的是,在该实施方式中,填充一部分内孔100的固体材料200可从由用于软焊或硬焊的熔融焊糊、液体合成树脂或液体金属构成的组中选择。

no. 2 approach

[0056] Figure 8 是示出金字塔型桁架式多孔材料的示例性立体图,其中一部分内孔填充有固体材料。

[0057] according to Figure 8 的第二实施方式,在构成金字塔型桁架的锥体孔和四面体孔100之中仅四面体孔填充有固体材料300。

[0058] 由于所有的桁架元件均受固体材料的约束,因此,桁架元件自身和整个多孔材料的结构稳定性都明显提高。

[0059] 不利地,所有内孔100的整个容积的大约1 / 3被填充有固体材料300,因此其多孔性也降低。

[0060] 在该实施方式中,与前述实施方式一样,填充一部分内孔100的固体材料300可从由用于软焊或硬焊的熔融焊糊、液体合成树脂或液体金属构成的组中选择。

no. 3 approach

[0062] Figure 9 是示出八角桁架式多孔材料的示例性立体图,其中一部分内孔填充有固体材料。

[0063] according to Figure 9 的第三实施方式,在构成八角桁架的规则八面体孔和四面体孔100中仅四面体孔填充有固体材料400。

[0064] 由于所有桁架元件均受固体材料400的约束,因此,桁架元件自身和整个结构的结构稳定性被明显提高。

[0065] 不利地,所有内孔100的整个容积的大约1 / 3被填充有固体材料400,因此其多孔性也降低。并且在该实施方式中,与前述实施方式一样,填充一部分内孔100的固体材料400可从由用于软焊或硬焊的熔融焊糊、液体合成树脂或液体金属构成的组中选择,这些材料优选通过注射被嵌入到孔100中。

[0066] 根据关于八角桁架的另一个可行实施方式,可采用由金属丝形成并且设置有八面体和准规则四面体的准八角桁架作为桁架式多孔材料。在该情况下,固体材料可优选地仅填充呈准规则四面体形状的内孔。

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Abstract

Provided are three-dimensional truss type periodic cellular materials, wherein a plurality of internal cells are formed periodically and part of the internal cells are filled with solid material like as metal, ceramic, synthetic resin, or composite materials for the purpose of preventing buckling of the truss elements when external compressive or shear loads is applied to the truss structure. By filling only parts of internal eel Is provided in the truss with appropriate solid materials, the buckling of truss elements can be suppressed maximally and effectively, and even if the buckling accidentally occurs, the sharp decline of strength can be prevented so as to ensure sufficient structural stability of the truss type periodic cellular materials.

Description

technical field [0001] The present invention relates to lightweight porous materials, in particular to truss type periodic porous materials. By filling a part of the inner holes set in the truss with a suitable solid material, the buckling of the truss elements can be suppressed to the maximum and effectively, and even if buckling occurs unexpectedly, a sharp drop in strength can be prevented, thereby ensuring a truss-type periodic porous material have sufficient structural stability. Background technique [0002] Generally, a porous material refers to a relatively light and strong material in which a plurality of internal pores are provided. [0003] Conventionally, resin foam, metal foam, sintered ceramics, etc. have been disclosed as these porous materials, and are widely used in various industrial fields where required. These porous materials can be classified as open or closed depending on whether the internal pores provided therein communicate with each other. [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21F27/10
CPCB21F27/128B21F27/12Y10T428/24116B21F27/10E04C2/32E04C2/34
Inventor 姜基洲边俊亨
Owner IND FOUND OF CHONNAM NAT UNIV
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