Damage modes and mechanical properties of Ti6Al4V lattice structures under transverse impact loading

IF 4.7 Q2 ENGINEERING, MANUFACTURING

Additive manufacturing letters Pub Date : 2025-05-30 DOI:10.1016/j.addlet.2025.100294

Minghao Huang , Yixiao Luo , Tenglong Xie , Xin Yang , Shenghang Xu , Chen Chang , Chao Ding , Huiping Tang

{"title":"Damage modes and mechanical properties of Ti6Al4V lattice structures under transverse impact loading","authors":"Minghao Huang , Yixiao Luo , Tenglong Xie , Xin Yang , Shenghang Xu , Chen Chang , Chao Ding , Huiping Tang","doi":"10.1016/j.addlet.2025.100294","DOIUrl":null,"url":null,"abstract":"<div><div>The light-weighting of high-end equipment structural components is an eternal pursuit in structural engineering. The development of Laser Powder Bed Fusion (L-PBF) technology has enabled the easy fabrication of lattice structure materials, which exhibit exceptional mechanical properties. The present study investigates the mechanical properties and deformation processes of ten Ti6Al4V lattice structures (Primitive, Diamond, Fischer-Koch, I-WP, Gyroid; 6-Layered Plate, 4-Layered Plate, Truss Plate; Auxetic honeycomb X, and Auxetic honeycomb Y) under a transverse impact loading. Firstly, it was found that the truss plate and 4-layered plate exhibited the highest specific absorbed energy (SAE) of 38.67 J/(g∙cm<sup>-3</sup>) and specific peak force (SPF) of 6033 N/(g∙cm<sup>-3</sup>), respectively. The Negative Poisson's ratio structure demonstrated the best damage tolerance during the impact test procedure. Meanwhile, the TPMS structures, which exhibit similar deformation behavior and shear failure modes, have closely matched peak force values. These findings provide critical guidance for aerospace and automotive applications requiring mass-efficient energy absorption.</div></div>","PeriodicalId":72068,"journal":{"name":"Additive manufacturing letters","volume":"14 ","pages":"Article 100294"},"PeriodicalIF":4.7000,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Additive manufacturing letters","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2772369025000283","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, MANUFACTURING","Score":null,"Total":0}

引用次数: 0

Abstract

The light-weighting of high-end equipment structural components is an eternal pursuit in structural engineering. The development of Laser Powder Bed Fusion (L-PBF) technology has enabled the easy fabrication of lattice structure materials, which exhibit exceptional mechanical properties. The present study investigates the mechanical properties and deformation processes of ten Ti6Al4V lattice structures (Primitive, Diamond, Fischer-Koch, I-WP, Gyroid; 6-Layered Plate, 4-Layered Plate, Truss Plate; Auxetic honeycomb X, and Auxetic honeycomb Y) under a transverse impact loading. Firstly, it was found that the truss plate and 4-layered plate exhibited the highest specific absorbed energy (SAE) of 38.67 J/(g∙cm^-3) and specific peak force (SPF) of 6033 N/(g∙cm^-3), respectively. The Negative Poisson's ratio structure demonstrated the best damage tolerance during the impact test procedure. Meanwhile, the TPMS structures, which exhibit similar deformation behavior and shear failure modes, have closely matched peak force values. These findings provide critical guidance for aerospace and automotive applications requiring mass-efficient energy absorption.

查看原文本刊更多论文

Ti6Al4V晶格结构在横向冲击载荷下的损伤模式与力学性能

高端设备结构件的轻量化是结构工程永恒的追求。激光粉末床融合（L-PBF）技术的发展使晶格结构材料的制造变得容易，这些材料具有优异的力学性能。本文研究了十种Ti6Al4V晶格结构(Primitive, Diamond, Fischer-Koch, I-WP, Gyroid；6层板、4层板、桁架板；辅助蜂窝X和辅助蜂窝Y)在横向冲击载荷下。首先，发现桁架板和四层板的比吸收能（SAE）和比峰力（SPF）分别为38.67 J/(g∙cm-3)和6033 N/(g∙cm-3)。负泊松比结构在冲击试验过程中表现出最佳的损伤容限。同时，TPMS结构具有相似的变形行为和剪切破坏模式，其峰值力值非常接近。这些发现为需要高质量能量吸收的航空航天和汽车应用提供了重要指导。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊