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Analysis using STATSUB card

Vidyaprakash G S

I have created 2 loadsteps

1. Cantiliver beam with end load(1000N) in Y direction

2. same Beam with end load(1000N) in Z direction

and i referenced loadstep1 in loadstep2 using STATSUB(preload) card

But im not getting the effect( Displacement pattern)) of loadstep1 in results

should it give the result of resultant of two loads???

Or i understood wrongly

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OptiStruct

v2020.1

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Rogerio Nakano_21179

In your case you need to use CNTNLSUB.

STATSUB are used to take into account specific type of SUBCASE: <BUCKLING, PRELOAD, PRETENS, STRUCTURE, BRAKE>

I Hope this is helpful

Regards

Vidyaprakash G S

Hi

In your case you need to use CNTNLSUB.

STATSUB are used to take into account specific type of SUBCASE: <BUCKLING, PRELOAD, PRETENS, STRUCTURE, BRAKE>

I Hope this is helpful

Regards

Hi Rogerio

I had tried CNTNLSUB also. But results are not as i expected

yuhaohe

If you are doing linear static analysis, I believe you will need to superpose the results from load step 1 and 2 during post-processing to get the overall results.

If you are doing nonlinear static analysis, adding CNTNLSUB in addition to STATSUB should help.

Rajashri_Saha

Hi,

Agree with the above comments. See the below supporting doc on this.

You can go through the below link too.

Prestressed Linear Analysis (altair.com)

Thanks

Rajashri