Open AccessУчет влияния полей остаточных деформаций в современных физико-механических технологиях обработки конструкционных материалов
Author(s) -
Ю. Н. Кульчин,
Виктория Евгеньевна Рагозина,
О. В. Дудко
Publication year - 2019
Publication title -
pisʹma v žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-7471
pISSN - 0320-0116
DOI - 10.21883/pjtf.2019.01.47152.17487
Subject(s) - levy–mises equations , infinitesimal strain theory , redistribution (election) , mechanics , plasticity , classical mechanics , tensor (intrinsic definition) , nonlinear system , elasticity (physics) , materials science , physics , mathematics , thermodynamics , composite material , geometry , finite element method , stress intensity factor , quantum mechanics , politics , political science , law
A strict determination of the mechanisms of redistribution of previously accumulated irreversible strains as a result of additional elastic shock actions on the material is given for a nonlinear gradient model of large elastic–plastic strain. It is shown that this redistribution is limited by rigid transport and rotation of the plastic strain tensor. Formulas for a change in the initial components of the plastic strain tensor in elastic waves are derived. It is shown that the preliminary plastic field affects the dynamics of further reversible strain as one of the factors of formation of the initial quasi-static elastic field, which cannot be obtained in a purely elastic process.