ABSTRACT
This chapter argues that Generalized Limit Equilibrium Method (GLEM) is introduced and applied to some plasticity problems including static stability and dynamic behavior and discusses the applicability of classical theories of plasticity including GLEM is discussed in regard to the assumption of rigid-perfect plastic material. GLEM can give the approximate solution obtained by Slip Line Method and the upper bound solution in the strict sense of Limit Analysis Method. As the static or dynamic GLEM is a kind of the classical theories of plasticity, the applicability may have the same limitation. The stability analysis based on the classical theories of plasticity such as Slip Line Method and Limit Analysis Method, requires the assumption of the perfect plasticity of the material. GLEM seems to have the limitation on application, that is, unloading and active problems can be properly analyzed, but loading and passive problems cannot properly be analyzed, because of the assumption of rigid-perfect plasticity of the material.
