Research on Compression Energy Absorption Performance of Skin-like 3D Porous Lattice Structure

doi:10.3901/JME.2021.15.222

Abstract

Abstract: A three-dimensional porous lattice structure with regular porous characteristics based on digital light processing (DLP) 3D printing technology is manufactured, so that it has the characteristics of a wider compressive stress platform. Three cell grid configurations are studied and designed, and thus are combined into different regular three-dimensional porous lattice structures, which are manufactured by using light solid flexible resin material with a special ratio. According to the principle of bionic design, the structural characteristics of the skin longitudinal section are analyzed. Based on the experimental data and combined with the skin structure, Find the optimal three-dimensional porous structure to obtain a good compressive stress platform. The three-dimensional porous structure has the advantages of regular controllability, combined with appropriate soft materials, and shows good mechanical properties. The research results have a relatively broad Development space, whose structure can be used as a three-dimensional scaffold material in the tissue engineering skin external component technology, and can also be used as a high-quality buffer or damping material in the field of vibration and energy absorption.

Key words: cell grid configuration, stress platform, lattice structure, 3D printing

CLC Number:

TH122

JI Xiaogang, ZHANG Jianan, LUAN Yuhao, ZHANG Xixi, HU Haitao. Research on Compression Energy Absorption Performance of Skin-like 3D Porous Lattice Structure[J]. Journal of Mechanical Engineering, 2021, 57(15): 222-230.

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