My project is dynamic response of USP used in rail track using Abaqus software. I am doing this one with hyper elastic material model under the explicit analysis. But it take too much time to run this program and face some problems to solve this. Here I attached my CAE file. Can you help anyone to solve this model.
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Abaqus
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It seems that there's some large difference between the conditions of the physical test and the setup of the simulation. Perhaps boundary conditions are different than real-life supports or material behavior is not accurately represented but there can be many other reasons too.
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sir,
here I attached my (.CAE) file link. can you please check?
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A few remarks after seeing your model:
- the analysis takes so long because of a long time of the first explicit step, if it's supposed to be quasi-static analysis then you should use mass scaling
- the mesh is very coarse, I would try with a significantly refined one
- it's not necessary to apply rigid body constraints to parts that are defined as discrete rigid and meshed with such elements as long as they have reference points assigned
- make sure that material properties (especially hyperelasticity and viscoelasticity) are correct, double-check their units
- check the warning messages generated after the analysis is submitted
- if you want to apply amplitudes to prescribed displacement BCs, you have to enter some non-zero value (usually 1 since it's multiplied by the amplitude) in selected DOF
- the analysis takes so long because of a long time of the first explicit step, if it's supposed to be quasi-static analysis then you should use mass scaling
- the mesh is very coarse, I would try with a significantly refined one
- it's not necessary to apply rigid body constraints to parts that are defined as discrete rigid and meshed with such elements as long as they have reference points assigned
- make sure that material properties (especially hyperelasticity and viscoelasticity) are correct, double-check their units
- check the warning messages generated after the analysis is submitted
- if you want to apply amplitudes to prescribed displacement BCs, you have to enter some non-zero value (usually 1 since it's multiplied by the amplitude) in selected DOF
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