NUMERICAL MODELING OF THE BRIDGMAN EXPERIENCE FOR ELASTIC-PLASTIC MATERIAL OF MURNAGHAN
For the ideally elastic-plastic material of Murnaghan, numerical modeling of uniaxial and biaxial tensile and compression loads was performed, performed prior to the macro fracture of the samples. The phenomenon of the onset and development of deformation elastic and plastic anisotropy is described. A check was carried out on the governing equations, setting the parameters of the material model and the proposed criterion for sample failure (in the general case of the appearance of a macro crack). The suitability of the Fortran programs developed for triclinic material has been established. The results of calculations of plasticity curves reflecting the anisotropy that has arisen are compared with the experimental Bridgman data. The phenomenon of increasing the plasticity of the material under conditions of high hydrostatic pressure is described.