Re: [Yade-users] [Question #703730]: Stress Path Control under Constant Volume

2022-12-01 Thread Launchpad Janitor
Question #703730 on Yade changed: https://answers.launchpad.net/yade/+question/703730 Status: Open => Expired Launchpad Janitor expired the question: This question was expired because it remained in the 'Open' state without activity for the last 15 days. -- You received this question

Re: [Yade-users] [Question #703730]: Stress Path Control under Constant Volume

2022-11-15 Thread Jan Stránský
Question #703730 on Yade changed: https://answers.launchpad.net/yade/+question/703730 Jan Stránský posted a new comment: PeriTriaxController: [1], method action(), inside for (int axis ...) loop, search strain_rate and stiff Cheers Jan [1] https://gitlab.com/yade-

Re: [Yade-users] [Question #703730]: Stress Path Control under Constant Volume

2022-11-15 Thread Gianni Pellegrini
Question #703730 on Yade changed: https://answers.launchpad.net/yade/+question/703730 Gianni Pellegrini gave more information on the question: Hello again, I am trying to use an algo such as err= -(fstress - dev) K=np.abs((dev-dev0)/(Ezz-Ezz0)) rate= err/K*1/O.dt where

Re: [Yade-users] [Question #703730]: Stress Path Control under Constant Volume

2022-11-07 Thread Gianni Pellegrini
Question #703730 on Yade changed: https://answers.launchpad.net/yade/+question/703730 Gianni Pellegrini gave more information on the question: Sorry for the delay but LaunchPad did not notify your answers. Yes, the solution provided by Jan is similar to what I was meant to do. The strain rate is

Re: [Yade-users] [Question #703730]: Stress Path Control under Constant Volume

2022-11-07 Thread Jérôme Duriez
Question #703730 on Yade changed: https://answers.launchpad.net/yade/+question/703730 Jérôme Duriez posted a new comment: Hi, If sigma1 refers to a diagonal component (of a xx, xy, xz, ... matrix) whose you're already controlling strain rate, I think it would be physically impossible (not

Re: [Yade-users] [Question #703730]: Stress Path Control under Constant Volume

2022-11-07 Thread Jan Stránský
Question #703730 on Yade changed: https://answers.launchpad.net/yade/+question/703730 Jan Stránský posted a new comment: Hello, if there is not such controller (I do not use them myself so I cannot tell) and for future reference (i.e. if you know how to implement it but some future guest here