文献类型：期刊文献

英文题名：Periodic Lattice Porous Structure Produced by Selective Laser Melting: Process, Experiment and Numerical Simulation Analysis

作者：Zhang, Jianrui[1,2];Chi, Min[1];Qian, Bo[1];Qiu, Zhijun[2]

机构：[1]East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai 200237, Peoples R China;[2]Univ Wollongong, Sch Mech Mat Mechatron & Biomed Engn, Wollongong, NSW, Australia

年份：2020

卷号：125

期号：1

起止页码：77

外文期刊名：CMES-COMPUTER MODELING IN ENGINEERING & SCIENCES

收录：;EI(收录号：20203909239872);WOS:【SCI-EXPANDED(收录号:WOS:000576462800001)】；

基金：This paper was funded by the Key Project of Chinese National Programs for Fundamental Research and Development-Model Processing and Process Planning Software Project for Additive Manufacturing (2018YFB1105300)-Universal Full-dimension Digital Model Project (2018YFB1105301).

语种：英文

外文关键词：Selective laser melting; numerical simulation; stress field; lattice porous structure

摘要：To accurately perform the coupled simulation of temperature field and stress field of complex parts and porous structures under the optimal manufacturing process parameters, three kinds of porous structures with different complexity were designed in this paper. Firstly, ANSYS additive software was used to conduct the stress/deformation simulation of the whole structure under different scanning strategies. Secondly, the optimal scanning strategy for different porous structures was determined, then the experimental preparation was performed, and mechanical properties of compression were tested and studied. The results show that the elastic modulus and yield strength increase with the increase of pole diameter/wall thickness. In addition, the quasi-static compression simulation of different structures was performed, and the compression performance was analyzed based on the experimental data. Finally, the stress concentration region of different structures was obtained.