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Message #11908
[Question #273566]: Calculate the induced stress
New question #273566 on Yade:
https://answers.launchpad.net/yade/+question/273566
Hello
I want to calculate the increase in stored energy Uc.
Uc=0.5*strain_rate*stress_induced*volume(sample)+strain_rate*stress_previous*volume(sample)
To apply the stress on the sapmle i use TriaxialStressController.
To calculate stress_induced i use this formula
stress_induced=stress(k)-stress(k-1) with k is the iteration number.
In the script i get stress(k) with "stress"
https://yade-dem.org/doc/yade.wrapper.html?highlight=triaxialstresscontroller#yade.wrapper.TriaxialStressController.stress
and i get stress(k-1) with "previousStress"
https://yade-dem.org/doc/yade.wrapper.html?highlight=triaxialstresscontroller#yade.wrapper.TriaxialStressController.previousStress
The problem is previousStress=0 during the simulation wheras in the reality the previousStress >0.
Best regard
Jabrane
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