St.Venant-Levy-Mises材料塑性力学的Lagrange形式

Lagrange Formalism of Plasticity about St. Venant-Levy-Mises Materials

将St．Venant－Levy－Mises材料的塑性力学问题纳入Lagrange力学的理论体系，讨论了这种材料的塑性力学三维问题，小挠度问题以及有限变形（大挠度）问题的基本微分方程．

The plasticity mechanics problems of St. Venant-Levy-Mises materials be bring into the theoretical system of Lagrangian mechanics, the basic dlfferential equations of plasticity mechanics about above materials on three-dimensional problem,on small deflection problem,and on finite-deformation (large deflection) problem be disussed in this paper.