Limit load solution for electron beam welded joints with single edge weld center crack in tension View Full Text


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Article Info

DATE

2012-04-28

AUTHORS

Wei Lu, Yaowu Shi, Xiaoyan Li, Yongping Lei

ABSTRACT

Limit loads are widely studied and several limit load solutions are proposed to some typical geometry of weldments. However, there are no limit load solutions exist for the single edge crack weldments in tension (SEC(T)), which is also a typical geometry in fracture analysis. The mis-matching limit load for thick plate with SEC(T) are investigated and the special limit load solutions are proposed based on the available mis-matching limit load solutions and systematic finite element analyses. The real weld configurations are simplified as a strip, and different weld strength mis-matching ratio M, crack depth/width ratio a/W and weld width 2H are in consideration. As a result, it is found that there exists excellent agreement between the limit load solutions and the FE results for almost all the mis-matching ration M, a/W and ligament-to-weld width ratio (W-a)/H. Moreover, useful recommendations are given for evaluating the limit loads of the EBW structure with SEC(T). For the EBW joints with SEC(T), the mis-matching limit loads can be obtained assuming that the components are wholly made of base metal, when M changing from 1.6 to 0.6. When M decreasing to 0.4, the mis-matching limit loads can be obtained assuming that the components are wholly made of base metal only for large value of (W-a)/H. The recommendations may be useful for evaluating the limit loads of the EBW structures with SEC(T). The engineering simplifications are given for assessing the limit loads of electron beam welded structure with SEC(T). More... »

PAGES

624-628

Identifiers

URI

http://scigraph.springernature.com/pub.10.3901/cjme.2012.03.624

DOI

http://dx.doi.org/10.3901/cjme.2012.03.624

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1016664769


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