Features of stress strain state in specimen neck at (when) computationally modeling a tension process

Abstract

The previously introduced by the authors proce-dures of computational modelling on the basis of finite element method of a cylindrical specimen neck formation process at all stages of its development, up to the specimen failure is supplemented and specified here. The researchers describe the procedures of a specimen with a neck model adaptation and analyze the evolution of deformation mode in the necking area of the specimen tension process. The results of computational modelling are compared with the known analytical dependences. Comparison of calculated and experimental data are made.