Functional gradient porous energy absorbing material and manufacturing method thereof

Abstract

The invention belongs to the technical field of porous materials, and particularly relates to a functional gradient porous energy absorbing material and a manufacturing method thereof. The functionalgradient porous energy absorbing material comprises a plurality of energy absorbing material layers; the energy absorbing material layers are stacked and connected in at least one direction in spatialorthogonal three-dimensional directions; each energy absorbing material layer comprises a plurality of mutually connected and hollow cube unit cell bodies; and the structures of the cube unit cell bodies of each energy absorbing material layer are arranged in a gradient type in the stacking direction of the energy absorbing material layers. According to the functional gradient porous energy absorbing material and the manufacturing method thereof, each energy absorbing material layer of the functional gradient porous energy absorbing material is formed in the manner that the plurality of hollow cube unit cell bodies are mutually connected; and the cube unit cell bodies are arranged and distributed in a gradient type in one or more directions in the spatial orthogonal three-dimensional directions, so that the cube unit cell bodies have a functional gradient type effect in the direction in the aspects of buffering or impacting energy absorbing, the size of the porous material is easy tocontrol, and a functional gradient effect is achieved so that one-way impacting can be effectively counteracted and borne.

Description

technical field [0001] The invention belongs to the technical field of porous materials, and in particular relates to a functional gradient porous energy-absorbing material and a manufacturing method thereof. Background technique [0002] Porous material is a kind of network structure material composed of interpenetrating or closed pores. Typical pore structures are: a two-dimensional structure formed by the aggregation of a large number of polygonal pores on a plane, which is called a "honeycomb" material because its shape is similar to the hexagonal structure of a honeycomb; more commonly, it is composed of a large number of ordered or A three-dimensional structure formed by the aggregation of disordered (regular or irregular) pores in space. When the cells are disordered (ie, irregular), the material is often referred to as a "foamed" material, typically aluminum foam. In addition, if the pores are connected, it is called an open-pore porous material; if the pores are n...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a functionally graded porous energy-absorbing material and its manufacturing method, aiming to solve the problems in the prior art that the size of the porous material is not easy to control, does not have a functional gradient effect and can only withstand one-way impact question

Images