Estimation of residual stresses in weldments using adaptive grids

Abstract Residual stress is a critical determining factor for the strength and service life of welded structures. Owing to its importance, a number of researchers have worked to estimate the residual stresses in the weldments. In the present work the residual stresses in butt welds were estimated using an elasto-plastic nonlinear finite element model. The temperature distribution was calculated by a finite element model using adaptive grid techniques. The temperature dependent mechanical properties were considered. The results were compared with the experimental results available in the literature.

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