ABSTRACT

To solve the boundary problems numerically, it is recommended to employ the mechanical or close to them characteristics of real materials. For this purpose, necessary parameters for aluminum alloy D-16Т (duralumin), cordierite, silicon nitride ceramics, and polytetrafluoroethylene (PTFE, fluoroplast-4) have been obtained using known experimental data (Starovoitov, 2002, 2004) given below. Besides, an analytical variant of plasticity and physical nonlinearity functions is presented, and a numerical processing technique of experimental data is described.