Abstract
This study describes residual stress distribution of large-bore and heavy-walled stainless steel pipe with butt-welded joint as measured by inherent strain method in the form of function, in which the inherent strain distribution is represented in the form of function. The deviation of the most probable residual stress value was small indicating accurate measurement. The detail feature and 3D-distribution of the residual stress generated within the heavy-walled pipe with welded joint can be evaluated in this method. It was found that the residual stress distribution had more complicated shape as the aperture and thickness of the pipe was larger.
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