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gslee

Fpenmax is only applied on initial penetration?

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Hi,

 

I learned that when initial penetration is too deep, Fpenmax is applied.

 

'The node stiffness is deactivated if the Penetration ≥ Fpenmax * Gap, whatever the value of Inacti.'

 

In above sentence, 'Penetration' is only initial penetration or any penetration?

 

Thanks.

 

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Hi,

 

Fpenmax is the maximum fraction of initial penetration. 

To deactivate node from interface during simulation (to avoid deep penetrations leading to timestep drop) use dtmin in contact definition or interface minimum time step entered in /DT/INTER/DEL.

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