Journal
ACTA MECHANICA
Volume 139, Issue 1-4, Pages 231-249Publisher
SPRINGER-VERLAG WIEN
DOI: 10.1007/BF01170191
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This work examines critically the role that the Eshelby (energy-momentum) tensor or its degenerate form, the Mandel stress, should logically play as the driving force in an invariant formulation of the thermomechanics of finite-strain elasto-plasticity. Here the stress measure of which Mandel advocated the use in elastoplasticity, is shown to coincide, up to a sign, with the quasi-static Eshelby stress tensor expressed in the elastically released intermediate configuration. The various constitutive representations for the plastic rate are then discussed in terms of various thermodynamically conjugate pairs of forces and velocities for anisotropic materials.
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