Dear All,
I am working on numerical analysis of the Friction Stir Welding (FSW) process using Abaqus. The model compressed of johnson cook flow model, ALE Adoptive Remesh to avoid distortion problem, Mass scaling to increase computational efficiency, Temperature-dependent material properties, modified columns law with the temperature-dependent friction coefficient, a shoulder to pin ratio of 3, assumed tilt angle as 0 in the present case, and trying to simulate the Plunging, Dwell, and welding phase of FSW.
Plunging, Dwell is happening as expected. However, on entering the welding phase, the material retrieves aren't taking place and leave a dent, as shown in the attached file in all cases of different rpm and travel speed. This looks like permanent deformation of material without material retrieval during the process. Kindly suggest relatable suggestions on how possibly these issues can be solved using Abaqus... I really appreciate any help you could provide.
#FSW #Abaqus #Friction Stir welding #ALE
I modeled the FSW process using both ALE and CEL approaches. You need to specify a failure criterion, e.g., Johnson-Cook damage model. If you do so, you will notice a significant decrease in reaction force values - more realistic values. Also, you will achieve what you want.
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