Research on Thick-Wall Columnar Pressure Vessel with Auto-Frettage

Abstract

The theoretic formula for the optimal radius of elastic-plastic junction in auto-frettage thick-wall columnar pressure vessel was deduced. on the basis of the twin shear strength theory, the relationship between the allowable maximal operating pressure for the pressure vessel and yield was analyzed,Bauschinger effect to reverse yield with auto-engaged vessel was investigated, The procedure was illustrated with the help of numerical example and the results show the reliability of the designing method.