Large deformation of spiral tube

A 20 layer spiral tube, establish a cylindrical coordinate system, fixed end, the top 120 degrees rotation around the center and the radial degree of freedom of the top is 0, nonlinear quasi static deformation results off center is more, seemingly appeared a large strain, how to do?

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Altair Forum User

Hi,

Can you please share the files (_0000.rad and h3d), so that we can review the same.

Altair Forum User

This attachment is the original document

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Altair Forum User

Hi @along_2006

Can you run NLSTAT with LGDISP?

Goto Control Cards>> PARAM>> LGDISP>> 1 to activate large displacement solution with NLSTAT and refer to NLPARAM in Loadstep>> NLPARAM(LGDISP)

You can add NLOUT for incremental results, FYI /emoticons/default_smile.png' srcset='/emoticons/smile@2x.png 2x' title=':)' width='20'>

Altair Forum User

Prakash Pagadala

The operation you said, I have set it, the deformation is still difficult to control. Can you see the model of my attachment? Try to modify and calculate, and then make a judgment

Hi @along_2006

Can you run NLSTAT with LGDISP?

Goto Control Cards>> PARAM>> LGDISP>> 1 to activate large displacement solution with NLSTAT and refer to NLPARAM in Loadstep>> NLPARAM(LGDISP)

You can add NLOUT for incremental results, FYI /emoticons/default_smile.png' srcset='/emoticons/smile@2x.png 2x' title=':)' width='20' />

Unable to find an attachment - read this blog