A Review of Developments in the Theory of Elasto-plastic Flow

2μδε analogue analyst anisotropic Bauschinger effect bending body forces boundary conditions candidate solution constitutive equations constitutive relations deformation rate dependent variables derives described differential equations displacement increments Drucker Eijkl elasto-plastic flow equations of equilibrium finite deformations finite differences finite elements flow rule formulation governing equations ij ij incremental quantities indicial notation infinite domain integral theorems inverse Kronecker delta load step loading function M/My material point method mn mn modulus Navier's equations nonlinear notation noted occur perfect plasticity plane strain plastic flow plastic strain Poisson's ratio procedure programs relationship result shear modulus solving problems specified strain increment stress and strain stress increments stress rate stress vector stress-strain curve surface tensor terms of displacement theory of elasto-plastic unloading Westinghouse Electric Corporation yield δε δν δσ δτ δυ ху