Tailorable and predictable mechanical responses of additive manufactured TPMS lattices with graded structures

被引：57

作者：

Yang, Lei ^{[1
,2
]}

Li, Yang ^{[1
]}

Wu, Siqi ^{[2
]}

Chen, Peng ^{[2
]}

Wu, Hongzhi ^{[2
]}

Su, Jin ^{[2
]}

Wang, Haoze ^{[2
]}

Liu, Jie ^{[2
]}

Yan, Chunze ^{[2
]}

Shi, Yusheng ^{[2
]}

机构：

[1] Wuhan Univ Technol, Sch Transportat & Logist Engn, Wuhan 430063, Peoples R China

[2] Huazhong Univ Sci & Technol, Sch Mat Sci & Engn, State Key Lab Mat Proc & Die & Mould Technol, Wuhan 430074, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2022年 / 843卷

基金：

中国国家自然科学基金; 国家重点研发计划;

关键词：

Graded lattice structure; Laser powder bed fusion; Energy absorption; Compressive response; Triply periodic minimal surface; MINIMAL-SURFACES; LASER;

D O I：

10.1016/j.msea.2022.143109

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In this study, graded Gyroid-type TPMS graded lattice structures were designed and manufactured by laser powder bed fusion, showing tailorable and predictable mechanical responses, such as Young's modulus, yield strength, and multi-platform stress-strain curves. The strong regularity of the mechanical response makes it possible to predict, while the difference in gradient degree makes the prediction difficult. Revised mathematical equations were modelled to accurately predict the mechanical responses of graded lattice structures. Insights and equation models can be used as guidance for the design of graded lightweight structures and biological bone scaffolds.

引用

页数：10

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