Abstract:Analysis of stability and bifurcation is studied in nonlinear mechanics with mechanisms of dissipation: plasticity, damage, fracture. With introduction of a set of internal variables, this framework allows a systematic description of the material behavior via two potentials: the free energy and the potential of dissipation. For standard generalized materials, internal state evolution is governed by a variational inequality depending on the mechanism of dissipation. This inequality is obtained through energetic… Show more
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