Mechanical behavior and response mechanism of porous metal structures manufactured by laser powder bed fusion under compressive loading

作     者：Xuanming Cai Yang Hou Wei Zhang Zhiqiang Fan Yubo Gao Junyuan Wang Heyang Sun Zhujun Zhang Wenshu Yang Xuanming Cai;Yang Hou;Wei Zhang;Zhiqiang Fan;Yubo Gao;Junyuan Wang;Heyang Sun;Zhujun Zhang;Wenshu Yang

作者机构：School of Aerospace EngineeringNorth University of ChinaTaiyuan 030051China School of Materials Science and EngineeringNorth University of ChinaTaiyuan 030051China School of AstronauticsHarbin Institute of TechnologyHarbin 150080China School of Mechanical EngineeringNorth University of ChinaTaiyuan 030051China Shijiazhuang CampusArmy Engineering University of PLAShijiazhuang 050003China 65589 Unit 91 DetachmentDaqing 163411China School of Materials Science and EngineeringHarbin Institute of TechnologyHarbin 150080China 

基　　金：financially supported by the National Natural Science Foundation of China(Nos.12272356,12072326,and 12172337) the State Key Laboratory of Dynamic Measurement Technology,North University of China(No.2022-SYSJJ-03) 

出 版 物：《International Journal of Minerals,Metallurgy and Materials》 (矿物冶金与材料学报（英文版）)

年 卷 期：2024年第31卷第4期

页      码：737-749页

摘      要：Al Si10Mg porous protective structure often produces different damage forms under compressive loading,and these damage modes affect its protective *** order to well meet the service requirements,there is an urgent need to comprehensively understand the mechanical behavior and response mechanism of AlSi10Mg porous structures under compressive *** this paper,Al Si10Mg porous structures with three kinds of volume fractions are designed and optimized to meet the requirements of high-impact,strong-energy absorption,and lightweight *** mechanical behaviors of AlSi10Mg porous structures,including the stress-strain relationship,structural bearing state,deformation and damage modes,and energy absorption characteristics,were obtained through experimental studies at different loading *** damage pattern of the damage section indicates that AlSi10Mg porous structures have both ductile and brittle mechanical *** simulation studies show that the AlSi10Mg porous structure undergoes shear damage due to relative misalignment along the diagonal cross-section,and the damage location is almost at 45°to the load direction,which is the most direct cause of its structural damage,revealing the damage mechanism of AlSi10Mg porous structures under the compressive *** normalized energy absorption model constructed in the paper well interprets the energy absorption state of Al Si10Mg porous structures and gives the sensitive location of the structures,and the results of this paper provide important references for peers in structural design and optimization.

主 题 词：AlSi10Mg additive manufacture energy absorption characteristics damage by deformation mechanical behavior 

学科分类：0819[工学-海洋工程类] 0806[工学-电气类] 08[工学] 0805[工学-能源动力学] 080502[080502] 0802[工学-机械学] 080201[080201] 

核心收录：

D　O　I：10.1007/s12613-024-2865-0

馆 藏 号：203127147...