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Calculation of the deformation in perfect plasticity
Posted Jun 29, 2021, 12:08 p.m. EDT Structural Mechanics Version 5.6 0 Replies
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Hello, I would like to understand how the deformation is computed for a linear elastic model for a perfectly plastic material and a Von Mises type yield function and a stationnary solver. I am wondering wich deformation is reached since in perfect plasticity the strain increases at constant stress.
From what I see in Comsol the Von Mises stress saturates at the value of the yield stress, even when the input is a high value of the stress. Does it mean that the real stresses and strains are determinated so that the maximal value of the Von Mises stress is the yield stress ?
Thank you in advance
Hello Joseph
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