MGOLOZA
Mechanical
- Sep 19, 2017
- 1
thread569-390192
Hello everyone,
Does anyone know the answer for the following thread? I have a similar problem in my case, where I'm trying to simulate the impact of a micro-particle into an aluminum plate by using ANSYS Explicit Dynamics. I greatly appreciate any help regarding this issue.
"I'm trying to model a particle collision between two simple spherical particles. The particles have diameters in the range of 50 - 200 microns. I am trying to run a 2D axisymmetric simulation using Ansys Explicit Dynamics in Workbench 15.0. I can refine the mesh near the contact point using a body sizing mesh with a sphere of influence and the mesh generates just fine (with element sizes of about 1 micron). When the simulation runs though, I immediately get "Zero or negative element volume" errors. If I increase the element size I can get it to run, but I lose the resolution I want to have. I think it might be a precision problem, if the elements are so small that the volume rounds to zero. Is there any way around this? Any help or pointers would be appreciated."
Thanks,
Matin
Hello everyone,
Does anyone know the answer for the following thread? I have a similar problem in my case, where I'm trying to simulate the impact of a micro-particle into an aluminum plate by using ANSYS Explicit Dynamics. I greatly appreciate any help regarding this issue.
"I'm trying to model a particle collision between two simple spherical particles. The particles have diameters in the range of 50 - 200 microns. I am trying to run a 2D axisymmetric simulation using Ansys Explicit Dynamics in Workbench 15.0. I can refine the mesh near the contact point using a body sizing mesh with a sphere of influence and the mesh generates just fine (with element sizes of about 1 micron). When the simulation runs though, I immediately get "Zero or negative element volume" errors. If I increase the element size I can get it to run, but I lose the resolution I want to have. I think it might be a precision problem, if the elements are so small that the volume rounds to zero. Is there any way around this? Any help or pointers would be appreciated."
Thanks,
Matin