Numerical analysis of the mechanical behavior and energy absorption of a novel P-lattice

被引：53

作者：

Cao, Xiaofei ^{[1
,2
]}

Zhang, Danfeng ^{[3
]}

Liao, Binbin ^{[1
]}

Fang, Shizheng ^{[4
]}

Liu, Luwei ^{[1
,5
]}

Gao, Rui ^{[3
]}

Li, Ying ^{[1
,2
]}

机构：

[1] Beijing Inst Technol, Inst Adv Struct Technol, Beijing Key Lab Lightweight Multifunct Composite, Beijing 100081, Peoples R China

[2] Beijing Inst Technol, State Key Lab Explos Sci & Technol, Beijing 100081, Peoples R China

[3] Second Mil Med Univ, Changzheng Hosp, 415 Fengyang Rd, Shanghai 200003, Peoples R China

[4] China Univ Min & Technol, Sch Mech & Civil Engn, Beijing 100081, Peoples R China

[5] Nanjing Tech Univ, Coll Mech & Power Engn, Nanjing 211800, Peoples R China

来源：

THIN-WALLED STRUCTURES | 2020年 / 157卷

基金：

中国国家自然科学基金;

关键词：

P-lattice; Triply periodic minimal surfaces; Mechanical behavior; Energy absorption; INTERPENETRATING PHASE COMPOSITES; POROUS BIOMATERIALS; UNIT CELLS; METAMATERIALS; STRENGTH; COMPRESSION; REENTRANT;

D O I：

10.1016/j.tws.2020.107147

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

A novel P-lattice was proposed to meet the engineering needs of combined high specific stiffness, specific strength and superior energy absorption characteristic. The effective elastic properties and plastic strength of the novel P-lattice were adequately investigated through numerical simulation. Results indicated that more superior mechanical properties could be obtained in the proposed novel P-lattice when compared with those of the traditional lattices. Besides, the quasi-static energy absorption of the novel P-lattice was also studied and compared with the competing topologies. A higher energy absorption characteristic was obtained in the proposed novel P-lattice for the reason that three different deformation features, i.e. compression deformation, bending deformation and torsional deformation, existed in the P-lattice under loading.

引用

页数：11

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