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Dynamic Rolling Process FE Simulation

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[COLOR=black][FONT=Verdana]Dear All, [/FONT][/COLOR]

[COLOR=black][FONT=Verdana]I hope all feel so fine with your simulations.[/FONT][/COLOR]

[COLOR=black][FONT=Verdana]Recently, I am simulation a rolling process with a very high dynamic speed (around 5 m/s). Hence, the model is quite dynamic and not Quasi-static.[/FONT][/COLOR]

[COLOR=black][FONT=Verdana]I use Abaqus Explicit for this simulation. The structure is composite material including several layers with different material properties. In this case, I am using Cohesive Surface definition as the surface interaction between different layers. [/FONT][/COLOR]

[COLOR=black][FONT=Verdana]I have a big problem and there is an error during the simulation process so called:[/FONT][/COLOR]

[B][COLOR=black][FONT=Verdana] the ratio of deformation speed to wave speed exceeds 1.0000 in at least one element. [/FONT][/COLOR][/B]

[COLOR=black][FONT=Verdana]I tried to find a solution for this problem such as: [/FONT][/COLOR]

[COLOR=black][FONT=Verdana]Larger mesh . But the larger mesh decreases the solution accuracy.[/FONT][/COLOR]

[COLOR=black][FONT=Verdana]Have you ever seen any solution for this case? In this respect, may I imagine to let me know please if you have already any hints or solution for this problem.[/FONT][/COLOR]

[COLOR=black][FONT=Verdana]Thanks for your attention.[/FONT][/COLOR]

[COLOR=black][FONT=Verdana]Kind regards, [/FONT][/COLOR]


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