I am simulating a 3D rolling process of metallic slab using Abaqus/Explicit. The goal is to achieve an 85% thickness reduction in a single pass. The simulation runs successfully, but elements deform heavily, so I decided to apply ALE adaptive meshing. When I did it, the simulation no longer runs successfully. I am getting an error:
Here is the comparison of no-ALE and ALE cases for 0.015 step time:
Below are results for no-ALE case after the process:
It can be seen that, the mesh is heavily distorted.
Let’s start from the beginning. The assembly is given below:
Assumptions:
- Abaqus Explicit is used
- Step time is 0.1
- Mass scaling by factor: 2000
- Z-symmetry is applied
- Friction coefficient was set to 0.15 (I also tried higher values, but distortion got worse)
- Surface-to-surface contact is used
Material properties:
Step:
Interaction:
Load:
Mesh:
ALE adaptive mesh:
I tried also with lower frequency and higher number of remeshing sweeps, but it still doesn’t work.
I am attaching .inp file. It can be downloaded here:
How to solve the problem?
