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Simulation of resitance curves using Gurson plasticity model
Korouš, Jan ; Zemánková, Jaroslava
The concept of J-R curves is well established in structure assessment.However, the shape of J-R curves is influenced by constraint effectssignificantly. Such phenomena can be modelled using micromechanicalmodels of plasticity. The paper presents simulation of J-R curves usingthe complete Gurson model of plasticity, which was implemented into thefinite element system WARP3D.
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Thermodynamical Framework of Nonlinear Fracture Mechanics
Zemánková, Jaroslava
Fracture theory based on thermodynamical laws, namely on the principle of the maximal dissipated energy rate is described. Application of this approach and comparison its results with classical FM criteria for prediction of critical loading is presented in framework of experiment on aluminium alloy specimens.
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