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What is different b/w using Contact Surface to define contact group v.s create SET_ELEM set?

Hi,

To define contact pair (group) in O.S I often create contact surface then create contact group. It takes me a lot of time to choose contact surface for some part.

There is another option, I create set (SET_ELEMENT), then point to elements (by collector) to select all. It is a bit faster because I can script.

However, I am newbie and not sure which method is better about computation speed or accuracy?

Could you advise?

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Altair Forum User

Hi @alpha

Both will give you the same result.

alpha_21885

Thanks Prakash for your very fast response as usual.

So, it means that accuracy and computation speed is same.

So could you advise when we use SET_ELEM, when we use contact_surface?

Altair Forum User

Hi @alpha

I am not sure which is more efficient in computation speed.

I will check and get back to you soon.