Effect of Strength Matching Performance on J-Integral of Inhomogeneous Welded Joints

Abstract:

In this paper, J-integral of inhomogeneous welded joint is calculated by use of the combination of finite element method and virtual crack extension method, and the impact of strength matching on J-integral is studied as well. The analysis results show that the strength matching factor affects J-integral value greatly, that is, low matching of inhomogeneous welded joint of same steel can help to improve the ductility of the welded joint and the influence of the matching performance of dissimilar steel welded joint is more complex.

• Periodical: Advanced Materials Research (Volumes 472-475)
• Pages: 1267-1270
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.472-475.1267
• Online since: February 2012
• Authors: Chang Qing Sun, Chen Zhang, Bo He
• Keywords: Finite Element Method (FEM), Inhomogeneous, Ĵ-Integral, Welded Joint

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