prediction of residual stress field in autofrettaged thick -walled tubes using limited measurements

The pressure capacity and fatigue life of thick -walled vessels may be improved by applying compressive residual stresses. Auto frettage is the most famous and practical process introducing this beneficial residual stress to pressure vessels. A safe prediction of the failure of pressurized thick -walled tubes needs an accurate estimation of the residual stress distribution in the vessels.

کلیدواژه ها:

residual stress ، limited measurements ، inverse problems ، approximation theory ، autofrettage.