Eigenstrain simulation of residual stresses induced by laser shock processing in a Ti6Al4V hip replacement

被引：54

作者：

Correa, C. ^{[1
]}

Gil-Santos, A. ^{[1
]}

Porro, J. A. ^{[1
,2
]}

Diaz, M. ^{[1
,2
]}

Ocana, J. L. ^{[1
,2
]}

机构：

[1] Univ Politecn Madrid, Ctr Laser, E-28006 Madrid, Spain

[2] Univ Politecn Madrid, Escuela Tecn Super Ingn Ind, Appl Phys & Mat Engn Dept, E-28006 Madrid, Spain

来源：

MATERIALS & DESIGN | 2015年 / 79卷

关键词：

Laser shock processing; Finite element method; Hip replacement; Ti6Al4V; Residual stress; FINITE-ELEMENT-ANALYSIS; FATIGUE BEHAVIOR; ALUMINUM-ALLOY; ELASTIC STRAINS; PREDICTION; TI-6AL-4V; MODEL; ARTHROPLASTY; PROSTHESIS; RELAXATION;

D O I：

10.1016/j.matdes.2015.04.048

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Laser shock processing (LSP) is an established technology for the induction of compressive residual stresses in metallic materials. These compressive residual stresses increase the fatigue life of components in high reliability applications when failure is caused by surface-initiated cracks. In this paper, a numerical model is presented along with practical results at laboratory scale on the application of LSP to characteristic biomedical Ti6Al4V alloy, showing for the first time the compressive residual stresses induced in a hip replacement by the LSP treatment. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：106 / 114

页数：9

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