On the use of the plastic component of the CTOD for fatigue analysis in austenitic stainless steel

被引：1

作者：

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

Lopez-Crespo, C. ^{[1
,3
]}

Cruces, A. S. ^{[1
]}

Antunes, F., V ^{[4
]}

Lopez-Crespo, P. ^{[1
]}

机构：

[1] Univ Malaga, Dept Civil & Mat Engn, C Dr Ortiz Ramos S-N, Malaga 29071, Spain

[2] Yanbu Ind Coll, Al Nahdah 46452, Yanbu, Saudi Arabia

[3] Politech Inst Jesus Marin, C Politecn 1, Malaga 29007, Spain

[4] Univ Coimbra, Dept Mech Engn, CEEMPRE, Coimbra, Portugal

来源：

4TH INTERNATIONAL CONFERENCE ON STRUCTURAL INTEGRITY (ICSI 2021) | 2022年 / 37卷

关键词：

Fatigue crack growth; Digital Image Correlation; CTOD; Austenitie stainless steel; CRACK-GROWTH; STRESS INTENSITY; DRIVING-FORCE; CLOSURE; PARAMETER;

D O I：

10.1016/j.prostr.2022.02.032

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

In this work a new methodology for characterising the fatigue crack propagation of metallic alloys is proposed. The methodology is based on the plastic component of the Crack Tip Opening Displacement (CTODp) as a driving force. This CTODp parameter is evaluated from full-field displacement maps obtained by Digital Image Correlation (DIC). The method is applied on austenitic stainless steel but appears to be very suitable to a wide range of metal alloys. The methodology appears to improve some of the issues related to Linear Elastic Fracture Mechanics predictions for fatigue crack growth. (C) 2022 The Authors. Published by Elsevier B.V.

引用

页码：964 / 976

页数：13

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