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Friction in RADIOSS

Hello,

I have a couple of questions regarding friction modelling in RADIOSS:

- Is it possible to define different values of friction for different parts inside the same contact? In LS-DYNA this can be done by using the *DEFINE_FRICTION card, but I have not managed to find the equivalent for RADIOSS. In this way we avoid defining different contacts for each part with a different friction.

- Is it possible to make friction inside a contact different in two principal directions? In LS-DYNA this could be done through the ORTHO_FRICTION option in the contacts.

Many thanks in advance

Best Regards,

Adrian

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Andy_20955

Hi,

In the 2018.0.1 which is scheduled to be released soon, we will have a new /FRICTION option which can to the same thing as *DEFINE_FRICTION.

At this time we do not have any way to define friction in two principal directions. What is the use case for this?

Thanks,

Andy

Altair Forum User

Thanks a lot Andy.

The use case for the friction in two directions is for modelling the interaction between seatbelts and occupants or shoes with the carpet during a crash in vehicle occupant protection.

Regards,

Adrian