Abstract
A method for simulating crack growth that takes into consideration the release of residual stress has been developed using an automatic element re-division function. The release of residual stress was estimated using this newly developed method after the initial residual stress distribution was calculated using three-dimensional FE analysis. In order to verify the validity of the method, the release of residual stress was measured at the weld joint of a plate and then compared with estimated values. The results of this comparison confirmed that the simulation method does estimate the residual stress after crack extension to a high degree of accuracy.
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