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Re: Structure Analysis with both Beam and Shell elments
Posted: 06 May 2020, 17:49
by kevinarden
update shell solver sif still produces a deflection of 500
Re: Structure Analysis with both Beam and Shell elments
Posted: 06 May 2020, 20:45
by kevinarden
Realized I didn't have the updated shellsolver. Updated solver the deflection is at the correct value. 0.0132" same as beam solver.
I will clean up the study and post as an validation case study.
Re: Structure Analysis with both Beam and Shell elments
Posted: 07 May 2020, 12:55
by kevinarden
Added final case study to contributed cases, for this problem the beam addition to shell solver is valid,
viewtopic.php?f=18&t=7058&p=22650#p22650
Re: Structure Analysis with both Beam and Shell elments
Posted: 07 May 2020, 14:08
by mika
Thanks for testing,
As an update I mention that partially nonlinear analysis can now be done with "Large Deflection = True". At the moment the beam sections can nevertheless add only linearly behaving stiffness to the combined model, so the nonlinearity arises from the shell part.
-- Mika
Re: Structure Analysis with both Beam and Shell elments
Posted: 20 May 2020, 12:29
by JamesMarine
mika wrote: ↑07 May 2020, 14:08
Thanks for testing,
As an update I mention that partially nonlinear analysis can now be done with "Large Deflection = True". At the moment the beam sections can nevertheless add only linearly behaving stiffness to the combined model, so the nonlinearity arises from the shell part.
-- Mika
Many thanks! This seems working well regarding the test case. i will try to compare a more complicated model with original file in bdf analysised with nastran. Will try to compare the differences and revert back.
Re: Structure Analysis with both Beam and Shell elments
Posted: 05 Jun 2020, 11:12
by JamesMarine
Mika, if you don't mind, i have another question regarding shell/beam coupled solvers: does our beam solver support asymmetric beam properties?
As you may understand, beam with asymmetric properties is quite common.
mika wrote: ↑07 May 2020, 14:08
Thanks for testing,
As an update I mention that partially nonlinear analysis can now be done with "Large Deflection = True". At the moment the beam sections can nevertheless add only linearly behaving stiffness to the combined model, so the nonlinearity arises from the shell part.
-- Mika
Re: Structure Analysis with both Beam and Shell elments
Posted: 08 Jun 2020, 17:15
by mika
Only the second moments of area ("Second Moment of Area 2" and "Second Moment of Area 3") may currently be asymmetric to produce asymmetric response with respect to bending.
-- Mika