Characteristic of Interface Crack Propagation in Dissimilar Weld Joints

Wei Bing Wang; He Xue; Fu Qiang Yang; Xu Sheng Zhou

doi:10.4028/www.scientific.net/AMR.988.249

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 988Characteristic of Interface Crack Propagation in...

Characteristic of Interface Crack Propagation in Dissimilar Weld Joints

Abstract:

The propagation behavior of crack with different initiation position is affected by the constraint effect differences in dissimilar weld joints mechanical heterogeneity. The ductile fracture model of interface crack in dissimilar weld joints was built by adopting extended finite element method; the propagation characteristic of interface crack was summarized. The results indicate that the strength mismatch of materials at sides of interface will increase trend of crack advancing into the relative soft material which has lower yield strength and lower hardening exponent.

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Periodical:

Advanced Materials Research (Volume 988)

Pages:

249-252

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.988.249

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Online since:

July 2014

Authors:

Wei Bing Wang, He Xue, Fu Qiang Yang, Xu Sheng Zhou

Keywords:

Crack Propagation, Dissimilar Weld Joints, Interface Crack, Strain, Stress

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