Question #239901 on Yade changed: https://answers.launchpad.net/yade/+question/239901
Description changed to: Hi, if I run the simulation, the spheres seem to cross the cauldron and disappear or they're jumping very fast away. I if I change the material to ViscElMat and change the appropriate Law, the spheres don't cross the cauldron's surface (https://github.com/yade/trunk/blob/master/examples/baraban/baraban.py). I would like to know, how to stop this behaviour regarding the material "FrictMat". Am I using wrong laws or is the matter with importing .stl- files? Here's my Code: from yade import pack, plot, qt from yade import ymport facetMat=O.materials.append(FrictMat(density=7850,young=210e9,poisson=.25)) sphereMat=O.materials.append(FrictMat(density=7850,young=210e9,poisson=.25)) fctIds=O.bodies.append(ymport.stl('cauldron',color=(1,1,1),wire=True,fixed=True)) sphereRadius = .02 nbSpheres = (2,2,2) for i in xrange(nbSpheres[0]): for j in xrange(nbSpheres[1]): for k in xrange(nbSpheres[2]): x = (i*2 - nbSpheres[0])*sphereRadius*1.15 y = (j*2 - nbSpheres[1])*sphereRadius*1.15 z = (k*2 - nbSpheres[2])*sphereRadius*1.15 s=sphere([x,y,z+.2],sphereRadius,color=[1,1,6]) O.bodies.append(s) O.engines=[ ForceResetter(), InsertionSortCollider([Bo1_Sphere_Aabb(),Bo1_Facet_Aabb()]), InteractionLoop( # handle sphere+sphere and facet+sphere collisions [Ig2_Sphere_Sphere_L3Geom(),Ig2_Facet_Sphere_L3Geom()], [Ip2_FrictMat_FrictMat_FrictPhys()], [Law2_L3Geom_FrictPhys_ElPerfPl()] ), GravityEngine(gravity=(0,0,-9.81)), NewtonIntegrator(damping=0.5), qt.SnapshotEngine(fileBase='3d-',iterPeriod=5,label='snapshot'), PyRunner(command='finish()',iterPeriod=20000) ] O.dt=.9*utils.PWaveTimeStep() qt.View() def finish(): utils.makeVideo(snapshot.snapshots, 'simple_steel_collision.mpeg', fps=25, bps=10000) O.pause() rr=yade.qr.Renderer() rr.shape=False rr.IntrPhys=True Best regards! Thanks -- You received this question notification because you are a member of yade-users, which is an answer contact for Yade. _______________________________________________ Mailing list: https://launchpad.net/~yade-users Post to : [email protected] Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp

