ALLOWING FOR THE THIRD DEVIATORIC STRESS INVARIANT IN ANALYZING THE DEFORMATION OF THIN SHELLS

摘要

A method for numerical analysis of the elastoplastic axisymmetric stress–strain state of thin shells undergoing nonisothermal deformation along paths of small curvature with allowance for secondary plastic strains and the third invariant of stress deviator is elaborated. The stress–strain state of a shell during heating and cooling is analyzed numerically.