Mahmud a écrit :
Hi all. In the recent release of YADE, the independent stress and strain control has been added by introducing a new engine ThreeDTriaxialEngine.cpp.
I am not that this engine works with the last release of Yade, I think the engine hase not been updated, you should verify. I will do an update later in the winter.
I am interested in a hybrid control of the boundary stress where the vertical walls will move using strain control method while the lateral two walls will move with stress controlled method such that the increment in S22 (say 10 kPa) in each step due to the movement of the vertical walls will be adjusted by reducing the S11 (say -7 kPa) and S33 (say -3 kPa). How can I do that?
I am sorry but I am not sure to understand what you want to do. Maybe it would be clearer if you use always numbers 1, 2 or 3 to represent the three space directions instead of using sometimes numbers 1,2.. and sometimes vertical and lateral walls... However, I imagine you want to ajust the stress in one or two direction with respect to stress value in the thrid direction? ThreeDTriaxialEngine has not been done to perform such a control, but you can start from this engine to write the code that you need. I think the first step would be to write and give us the relation that you want to fix between s11, s22 and s33, for instance: s33= s11 + 0.258*s22.
Luc
Thanks in advanced. Regards Mahmud
-- Luc Sibille Université de Nantes - Laboratoire GeM UMR CNRS IUT de Saint Nazaire 58, rue Michel-Ange - BP 420 44606 Saint-Nazaire Cedex, France Tel: +33 (0)2 40 17 81 78 _______________________________________________ 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
