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question in EMI simulation

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Hello,

I am trying to use the Electromechanics simulation in 4.2a, but found that the check box for "Include Geometric Nonlinearity" is always checked by default and cannot be unchecked (grey check box), just wondering is this normal?

Thanks!

1 Reply Last Post Feb 1, 2012, 12:52 a.m. EST
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)

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Posted: 1 decade ago Feb 1, 2012, 12:52 a.m. EST
Hi

Yes it is "normal" as you have large deformations to take care of in most EMI applications, Even if you try to make your own combination ALE+Solid+ES you will have it checked because of the ALE

This means that your model is "heavier" and mostly non-linear, hence takes some more time to solve, but you will not violate the hypotheses if linear small strain inherent with the unchecked case

--
Good luck
Ivar
Hi Yes it is "normal" as you have large deformations to take care of in most EMI applications, Even if you try to make your own combination ALE+Solid+ES you will have it checked because of the ALE This means that your model is "heavier" and mostly non-linear, hence takes some more time to solve, but you will not violate the hypotheses if linear small strain inherent with the unchecked case -- Good luck Ivar

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