Tunalover
Mechanical
- Mar 28, 2002
- 1,179
I took an FEA methods course one time that went over element types. The course said that quad and hex element meshes were the best provided certain aspect ratios were not exceeded, and that tri and tet element meshes were "stiff" and tended to overestimate stresses. This was in the 80's. Have the software programs progressed to overcome this one-time weakness of tri and tet elements? The reason I ask is that I recently used an FEA code that meshes only in tet elements. The code, however, was a CFD code. When solving CFD problems is there an inherent weakness with tet elements like there once was with stress problems? TIA for your thoughts.
Tunalover
Tunalover