EFFECT OF MECHANICAL PROPERTY MISMATCH ON FAILURE ASSESSMENT CURVE FOR WELDED JOINT WITH A SEMI-ELLIPTICAL CRACK-Reference-Cited by-同舟云学术

EFFECT OF MECHANICAL PROPERTY MISMATCH ON FAILURE ASSESSMENT CURVE FOR WELDED JOINT WITH A SEMI-ELLIPTICAL CRACK

Published:2013-09 Issue:03 Volume:05 Page:1350029
ISSN:1758-8251
Container-title:International Journal of Applied Mechanics
language:en
Short-container-title:Int. J. Appl. Mechanics

Author:

WANG ZHONG-XIAN¹,ZHANG RUEI-FENG¹,CHAO YUH J.²³,LAM POH-SANG⁴

Affiliation:

1. Faculty of Civil Engineering and Mechanics, Jiangsu University Zhenjiang, Jiangsu 212013, China

2. College of Material Science and Engineering, Tianjin University, Tianjin 300072, China

3. Department of Mechanical Engineering, University of South Carolina, Columbia, SC 29208, USA

4. Materials Science and Technology, Savannah River National Laboratory, Aiken, South Carolina 29808, USA

Abstract

Elastic–plastic finite element analysis was performed to study the welded joints with a semi-elliptical crack. This research includes the effects of crack depth, strength mismatch ratio, and weld width on the crack driving force J-integral and the constraint parameter A2 at the crack tip. A two-parameter J-A2 fracture criterion based on the present results of crack tip stress field in the welded joints was established. The corresponding failure assessment diagrams were investigated in detail, from which the reliability and safety margin of the welded structures were discussed.

Publisher

World Scientific Pub Co Pte Lt

Subject

Mechanical Engineering,Mechanics of Materials,General Materials Science

Link

https://www.worldscientific.com/doi/pdf/10.1142/S1758825113500294

Reference28 articles.

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4. The effects of weld mismatch on J-integrals and Q-values for semi-elliptical surface flaws

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