ELASTIC-PLASTIC ANALYSIS OF 3D MACRO-MICRO TWO SCALE MODEL WITH LINEAR MIXED HARDENING

ELASTIC-PLASTIC ANALYSIS OF 3D MACRO-MICRO TWO SCALE MODEL WITH LINEAR MIXED HARDENING

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The theory of macro-micro two scale model obtains the micro plastic strains by using the macro-micro connecting factor,which is an effective theory to investigate the damage accumulation of the high fatigue and its failure mechanism.Based on the macro-micro theory,the saosin baltimore evolution rule of the micro stresses and strains with plastic hardening was studied,and it solved the micro stresses and strains replica grease gun of the three-dimensional models by making programs,which considered the linear mixed plastic hardening.It established the 3 D finite element models,and calculated the micro stresses and strains and obtains the equivalent stress-strain hysteresis loops with linear mixed hardening.Compared with the finite element results,the effectiveness of the algorithm results is verified.