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1 2008

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Stress-Strain Analysis of Ideally Plastic Material in Notches

Grudziński J., Buczyński A.

Machine Dynamics Problems

2008

Vol. 32, No. 3

20-33

Reliability and fatigue life estimations of structural and mechanical components exercising multiaxial loads need predictions of evolution of stress and strain fields. The solution of the problem demands high accuracy regarding stress-strain distribution especially in zones affected by stress concentrators such as cracks, geometrical or structural notches etc. The paper is addressed to numerical analysis of material plastic flow near the root of the U-type notch, located in a plate made of ST37 steel, under non-symmetric cyclic loads. The FEM will be applied to solve the problem, formulated in 2D space. The material behavior will be predicted by using the ideal plasticity cyclic model.