Re: [Yade-users] [Question #679515]: How to have a constant-p simulations with periodic boundary condition?
Question #679515 on Yade changed: https://answers.launchpad.net/yade/+question/679515 Bruno Chareyre posted a new comment: Hi, You need to write a servo-control loop since ultimately the velocity gradient is the only thing you can really impose. Typically: impose strain rate in one direction, get stress in that direction as a result, then keep updating the target stress in the other directions in order to keep trace(sigma) constant. Bruno -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #679515]: How to have a constant-p simulations with periodic boundary condition?
Question #679515 on Yade changed: https://answers.launchpad.net/yade/+question/679515 xujin posted a new comment: Hello, I am a beginner of yade, and I am looking forward to a way to do a constant-p simulation with periodic boundary condition as well recently. I met the same question with you coincidentally. After I read your conversation, the question still confuses me, so I want to ask you about it. Could you please answer the question for me or express your ideas? Thanks so much! -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #679515]: How to have a constant-p simulations with periodic boundary condition?
Question #679515 on Yade changed: https://answers.launchpad.net/yade/+question/679515 Status: Answered => Solved panjinhong confirmed that the question is solved: Thanks Chareyre, that solved my question. -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #679515]: How to have a constant-p simulations with periodic boundary condition?
Question #679515 on Yade changed: https://answers.launchpad.net/yade/+question/679515 Status: Open => Answered Chareyre proposed the following answer: Hi, updating goals is the only way (with or without periodicity). I guess the control loop is more or less stable depending on the parameters, but I never tried such thing myself and can't give precise advice. Bruno Le dim. 24 mars. 2019 15:08, panjinhong < question679...@answers.launchpad.net> a écrit : > New question #679515 on Yade: > https://answers.launchpad.net/yade/+question/679515 > > Hello, everyone. > > I am looking forward to a way to do a constant-p simulation with periodic > boundary condition. > > I have done some simulations with TriaxialStressController. At that case, > I can change the stress after a few steps. Because the stress it provide by > the wall would change immediately, I can get a constant-p simulation. > > But, when I use periodic boundary condition (PeriTriaxController), I could > only change the Goal Stress. It means that the stress would not change to > the target stress I want immediately, which result in a shaking of the > stress (I change the stress quiet often to keep a constant p ). > > Is there some good ways to achieve this kind of simulations？ > > Looking forward to your help, Thanks! > > -- > You received this question notification because your team yade-users is > an answer contact for Yade. > > ___ > Mailing list: https://launchpad.net/~yade-users > Post to : yade-users@lists.launchpad.net > Unsubscribe : https://launchpad.net/~yade-users > More help : https://help.launchpad.net/ListHelp > -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
[Yade-users] [Question #679515]: How to have a constant-p simulations with periodic boundary condition?
New question #679515 on Yade: https://answers.launchpad.net/yade/+question/679515 Hello, everyone. I am looking forward to a way to do a constant-p simulation with periodic boundary condition. I have done some simulations with TriaxialStressController. At that case, I can change the stress after a few steps. Because the stress it provide by the wall would change immediately, I can get a constant-p simulation. But, when I use periodic boundary condition (PeriTriaxController), I could only change the Goal Stress. It means that the stress would not change to the target stress I want immediately, which result in a shaking of the stress (I change the stress quiet often to keep a constant p ). Is there some good ways to achieve this kind of simulations？ Looking forward to your help, Thanks! -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
