Effect of aspect ratio on mechanical anisotropy of lattice structures

doi:10.1016/j.ijmecsci.2024.109111

CQUET-IR > 智慧健康学院

	Effect of aspect ratio on mechanical anisotropy of lattice structures
	Luo, Zhichao 1,2; Tang, Qian 1,2; Ma, Shuai 3,4; Wu, Xiaodong 5; Feng, Qixiang 6; Setchi, Rossitza 7; Li, Kun 1,2; Zhao, Miao 8
	2024-05-15
发表期刊	International Journal of Mechanical Sciences
ISSN	0020-7403
EISSN	1879-2162
卷号	270
摘要	Triply periodic minimal surface (TPMS) lattice structures with controllable mechanical properties and porous architecture are promising candidates for lightweight and energy-absorbing applications. In parametric structural design, the research on structural geometric characteristics, such as aspect ratio (R) and surface curvature, has mainly focused on fluid and heat transfer considerations. However, their impact on multi-directional mechanical properties has yet to be thoroughly investigated. This study, combining representative volume elements (RVE) based on periodic boundary conditions and theoretical surface morphological characteristics, investigates the mechanical properties and deformation behavior of lattice structures with different aspect ratios in multiple directions. The results indicate that the aspect ratio highly influences the deformation behavior of the lattice structure in different directions. The local curvature and force state of the lattice structure can be adjusted by aspect ratio to reduce local stresses and deformations in different loading directions. Compared with the simulation results of representative volume elements, the structural stress concentration and failure position can be predicted by the Gaussian curvature distribution. In addition, the elastic modulus of the structures in the [100] and [001] directions can also be adjusted by aspect ratio. Through experimental verification in the [001] direction, the structure with an aspect ratio of 2 can greatly enhance the elastic modulus (121%∼440%), maximum stress (10%∼183%), and energy absorption (33%∼85%). The significance of this work is to improve the understanding of the influence of geometric features on the mechanical properties and deformation behavior of lattice structures, which provides a new design approach for triply periodic minimal surface lattice structures in applications of impact protection and bone scaffold. © 2024
关键词	Aspect ratio Ductile fracture Elastic moduli Energy absorption Heat transfer Scaffolds Structural design Volume measurement Aspect-ratio Deformation behavior Lattice structures Lightweight Mechanical anisotropy Mechanical deformation Porous architectures Representative volume elements Surface lattice Triply periodic minimal surfaces
DOI	10.1016/j.ijmecsci.2024.109111
收录类别	EI ; SCIE
语种	英语
WOS研究方向	Engineering ; Mechanics
WOS类目	Engineering, Mechanical ; Mechanics
WOS记录号	WOS:001200525700001
出版者	Elsevier Ltd
EI入藏号	20240815581323
原始文献类型	Journal article (JA)
引用统计	被引频次：12[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.cqcet.edu.cn/handle/39TD4454/18238
专题	智慧健康学院重庆电子科技职业大学
作者单位	1.State Key Laboratory of Mechanical Transmissions, Chongqing University, Chongqing; 400044, China; 2.Chongqing Key Laboratory of Metal Additive Manufacturing (3D Printing), Chongqing University, Chongqing; 400044, China; 3.College of Mechanical Engineering, Chongqing University of Technology, Chongqing; 400054, China; 4.Center for Joint Surgery, Southwest Hospital, The Third Military Medical University, Chongqing; 400038, China; 5.Decathlon SE, 4 Boulevard de Mons, Villeneuve d'Ascq; 59650, France; 6.School of Smart Health, Chongqing College of Electronic Engineering. Chongqing, 401331, China; 7.Cardiff School of Engineering, Cardiff University, Cardiff; CF24 3AA, United Kingdom; 8.School of Mechanical and Electrical Engineering, University of Electronic Science and Technology of China, Sichuan; 611731, China
推荐引用方式 GB/T 7714	Luo, Zhichao,Tang, Qian,Ma, Shuai,et al. Effect of aspect ratio on mechanical anisotropy of lattice structures[J]. International Journal of Mechanical Sciences,2024,270.
APA	Luo, Zhichao.,Tang, Qian.,Ma, Shuai.,Wu, Xiaodong.,Feng, Qixiang.,...&Zhao, Miao.(2024).Effect of aspect ratio on mechanical anisotropy of lattice structures.International Journal of Mechanical Sciences,270.
MLA	Luo, Zhichao,et al."Effect of aspect ratio on mechanical anisotropy of lattice structures".International Journal of Mechanical Sciences 270(2024).