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Rotation of rigid body

Rotation of rigid body

Rotation of rigid body

(OP)
Hello all,

I have a rigid body (discrete 3d rigid - shell from solid) that I want to first translate (with fixed rotational degrees of freedom) and then rotate with the remaining two rotational degrees of freedom fixed.

When I apply those BCs at the reference point, I get the error "too many attempts for this increment".

Anybody could give any solution? I tried coarser and thinner mesh but nothing changed.

Thank you in advance!

RE: Rotation of rigid body

(OP)
Could a finer/better mesh solve the issue?

RE: Rotation of rigid body

(OP)
So what I get is this:

Finite rotation boundary condition specified in multistep three-dimensional analysis. Type=velocity should be used

and while I have the unsuccessful tries I get:

Excessive distortion at a total of 2 integration points in solid (continuum) elements

Excessive distortion at a total of 10 integration points in solid (continuum) elements

Excessive distortion at a total of 20 integration points in solid (continuum) elements

Excessive distortion at a total of 18 integration points in solid (continuum) elements

Excessive distortion at a total of 32 integration points in solid (continuum) elements

Any idea on how to solve it?

RE: Rotation of rigid body

(OP)
No increment converge...

I have some contacts defined. The warning/error messages I get are those posted in the previous post.

When I run the same model with "tie" contact interactions instead of friction, the model runs very smoothly...

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