Hi, here is a really good discussion environment but more discussion make more questions indeed!
Now I am confused about mesh size and made the following simulation example to analyze:
a beam model dimension : 100mmx100mmx500mm
Force applied at the end : 5000N
Study : static study
Fixture : one end of beam
Default mesh density = 17mm Max. stress = 15MPa
Fine mesh density = 8.5mm Max. stress = 18.6MPa
So, I increase the beam length to 2000mm
Default mesh density =27mm Max. stress = 57.0MPa
Fine mesh density = 13.5mm Max.stress = 68.4MPa
This make me think about one question: Should I use the fine mesh density(8.5mm) for the 2000mm beam simulation?
If I apply 8.5mm mesh density, the max.stress will be 78.0MPa
So, in solidworks simulation, how to choose the mesh size for your model? Should I consider the model volume?