Dear All,
I currently encountered a problem of using fixed constraint. Basically, in my model, fixed constraint is applied on part of a surface. This is how the structure was fixed and held in reality. It is just a single geometry without any contact pair issue. The solution is converged and I get a pretty reasonable stress distribution. However, the maximum principal stress is mesh dependent. It exists right at a corner around the fixed constraint. With my workstation computer, I can compute with very fine mesh. But the meshing dependent problem still exists.
Have anyone encountered this kind of problem before? Any method to solve it? The maximum stress is a very important information for me to see how good the design is. But the mesh dependence really makes me suffer.
Thanks
Qiulin
I currently encountered a problem of using fixed constraint. Basically, in my model, fixed constraint is applied on part of a surface. This is how the structure was fixed and held in reality. It is just a single geometry without any contact pair issue. The solution is converged and I get a pretty reasonable stress distribution. However, the maximum principal stress is mesh dependent. It exists right at a corner around the fixed constraint. With my workstation computer, I can compute with very fine mesh. But the meshing dependent problem still exists.
Have anyone encountered this kind of problem before? Any method to solve it? The maximum stress is a very important information for me to see how good the design is. But the mesh dependence really makes me suffer.
Thanks
Qiulin