PT Journal
AU Kut, S
TI The analysis of the constitutive model effect on convergence of results with the experiment for FEM modeling of 3D issues with high elastic-plastic deformations
SO Acta Mechanica Slovaca
PY 2012
BP 66
EP 72
VL 16
IS 1
DI 10.21496/ams.2012.008
DE tension; FEM modeling; constitutive relation; finite elastic-plastic deformation; ductile fracture
AB This paper presents the results of experimental researches and FEM modeling for tension process of an original plane specimen with notch. The specimen was made of the low carbon steel sheet with thickness of 4 mm. The modeling was performed with three different constitutive relationships, which are available in commercial software for modeling the non-linear issues with high strains. The three-dimensional numerical model was based on the experimental model. The results of individual models were compared with the experimental results. The special attention was paid to convergence of force characteristics and modeled specimen shapes in areas of the highest elastic-plastic deformations. Moreover, for the model of the highest convergence with the experiment the ductile fracture phase was modeled until total separation of specimen material.
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