Dear all,
Is there any way to automatically stop a (Riks) analysis in Abaqus when the maximum stress at any point in a model reaches the yield stress? Or when the strain reaches the yield strain? I know I can go through the results and manually check when the first element yields, but I was wondering if there was a faster way to do this.
In the step module, go to tab "other". Toggle on Stop when region region name is fully plastic. If you toggle on this option, enter the name of the region being monitored for fully plastic behavior.The step ends when the solutions at all constitutive calculation points in the element set are fully plastic (defined by the equivalent strain being 10 times the offset yield strain).
If you already know the approximate value of displacement that cause yield in your model, in "Basic" tab, Toggle on Maximum displacement to enter a maximum displacement value at a specific degree of freedom. You must also specify the Node Region that Abaqus will monitor for finishing displacement. If this maximum displacement is exceeded, Abaqus terminates the step.
You could do this with a user subroutine (like Uexternaldb) that checks the variables.
Thank you for your answer Martin. I will look the subroutine up in the User Manual.
In the step module, go to tab "other". Toggle on Stop when region region name is fully plastic. If you toggle on this option, enter the name of the region being monitored for fully plastic behavior.The step ends when the solutions at all constitutive calculation points in the element set are fully plastic (defined by the equivalent strain being 10 times the offset yield strain).
If you already know the approximate value of displacement that cause yield in your model, in "Basic" tab, Toggle on Maximum displacement to enter a maximum displacement value at a specific degree of freedom. You must also specify the Node Region that Abaqus will monitor for finishing displacement. If this maximum displacement is exceeded, Abaqus terminates the step.
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