Article ID Journal Published Year Pages File Type
1563517 Computational Materials Science 2009 7 Pages PDF
Abstract
In this study, a computational procedure capable of evaluating the J-integral for mode I crack in welds is presented. An uncoupled three-dimensional thermal elastic-plastic finite element method is utilized to obtain residual stress distributions in welds. The resulting residual stress fields are then fed into the subsequent fracture mechanics analysis of mode I crack in welds. Moreover, analytical expression of the J-integral for mode I crack in a three-dimensional residual stress bearing body which yields domain-independent values is given in a form suitable for the numerical analysis. The J-values for the combined residual and mechanical loading are calculated and discussed.
Related Topics
Physical Sciences and Engineering Engineering Computational Mechanics
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