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