作者: Yan Beygelzimer , Laszlo S. Toth , John J. Jonas
关键词: Mechanics 、 von Mises yield criterion 、 Strain (chemistry) 、 Structural engineering 、 Strain hardening exponent 、 Severe plastic deformation 、 Power law 、 Work hardening 、 Simple shear 、 Materials science 、 Measure (physics)
摘要: It is shown here using group theory principles that the Hencky strain not an appropriate measure for tests involving simple shear, which von Mises formulation should be used exclusively. also analytically application of self-similarity to Stages III-IV indicates these obey power laws, while same do apply other stages. As a result, they develop self-similar microstructures. Finally, effect path on work hardening rates themselves examined. lowest are again associated with shear because this along number intersecting slip systems lowest.