New question #688400 on Yade: https://answers.launchpad.net/yade/+question/688400
Hi all, I am trying to simulate a shear test where I have two CPM materials with different properties - top_mat(lower strength) and bot_mat(higher strength). top_mat rests on bot_mat at an angle <45. Try to imagine a direct shear test where there is an asperity at the interface. There is only friction between the two materials-no cohesion. There is a plate at the top which applies a load on top_mat in Constant Normal stiffness condition(CNS). top_mat has its boundaries free only in the Y direction where it is allowed to move vertically up or down. bot_mat can only move in the X direction(horizontal). When bot_mat(bottom box) is moved using a plate in the horizontal direction(X), the top_mat should ''SLIDE'' along the asperity in the Y direction and then be subjected to damage when the shear strength threshold is reached for top_mat. But even though I have a plate with a CNS load applied on top, during the shearing process, top_mat starts to ''FLY'' up instead of sliding and loses contact with bot_mat by pushing the CNS plate up, thereby defying both the CNS and the gravitational forces in the system. I am not sure why this is happening. P.S: I had modified the source code to have zero cohesion ONLY AT THE INTERFACE: iscohesive=0, undamagedcohesion=0 Sorry that I am unable to think of a way to provide an MWE because I cut out that interface using a gts surface and this platform doesn't support the inclusion of external links. If it is alright, I can provide the code and the external links here. Kindly help me out as I have been stuck in this issue for many days. Help as soon as possible will be much appreciated. Many thanks in advance. -Arun -- 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
