I am modeling dynamic compaction in Abaqus. I model the impact of a tamper on the soil and the job completes successfully, but the result has some problems. The impact happens and after that, the tamper starts moving in the opposite direction and bounces up. I want to know why this happens and how can I solve it?
Parts= soil is defined as a 3D deformable part and the tamper is also a deformable part with high young's modulus and in the interaction module, I define rigid body constraint for that.
Property= sandy soil with low cohesion.
No damping is defined, but I think it does not make a considerable difference in the trend.
Interaction= general contact, hard contact, and frictionless ( I also tried assigning a friction coefficient, but it does not change anything.)
For modeling the impact, I assigned velocity to the reference point of the tamper.
I attach the results.
Would you please help me solve this problem? I really need to figure this out.
Hi . If you are doing dynamic analysis ,you can add damping coefficient Beta value 0.001-0.009. I hope your problem will solve . Also you can use Tie-constraint interaction .
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