抄録
The tangential-subloading surface model is capable of describing the plastic strain rate due to the rate of stress inside the yield surface and the inelastic strain rate due to the stress rate component tangential to the subloading surface. The diffuse bifurcation modes of the rectangular specimen subjected to the plane strain loading is analyzed by adopting the tangential-subloading surface model, exhibiting the characteristic regimes of the governing equations (elliptic, hyperbolic and parabolic) in this article. In each of these regimes both symmetric and anti-symmetric diffuse bifurcation modes are available. Besides, the tangential strain rate makes the inception of bifurcation modes easier in not only normal-yield but also subyield states.
