Autofrettage--Stress Distribution Under Load and Retained Stresses after Depressurization
ARMY ARMAMENT RESEARCH DEVELOPMENT AND ENGINEERING CENTER WATERVLIET NY BENET LABS
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There is a long-standing interest in developing a capability to predict the distribution of retained stresses in thick-walled tubes after the removal of an internal pressure-post autofrettage. In this report, four different methods of calculating such stresses are presented and compared. The methods presented are based on the following assumed yield criteria and deformation conditions 1. Trescas yield criterion 2. Trescas yield criterion 23 3. Mises yield criterion in plane-stress 4. Mises yield criterion in plane-strain Autofrettage, Mck-Walled Tubes, Stress Distribution, Retained Stresses, Trescas Yield Criterion. Mises Yield Criterion. Plane-Sum. Plane-Strain.