Особливості побудови діаграм пластичності та фактори, що впливають на аномальне підвищення пластичності в зоні локалізації деформації

Abstract

In this work the features of the calculation of one of the functions of the material - the plasticity diagram (forming the technological map of the material (passport of the material)) are presented, which displays the properties of the material depending on the degree of deformation and the stress state scheme. It is shown that the “abnormal” increase of plasticity with an increase in the stress state index is explained by the influence of three factors: the gradient of deformations, the history of deformation and the third invariant of the stress tensor.