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vesna wrote:
> to model a nonlinear shell element you can use PlateFiberSection. However,
> this section has some bugs that are still unresolved and that is why it is
> not described in the command manual. I would suggest you not to use it
> until it is fixed.


thank u very much

Hello,anybody answers my questions ?

Hi, everybody I want to create a shell element considering material nonlinear in OS. Two ways are used to construct $secTag of the shell element as following: 1/define SectionForceDeformation; 2/define some PlateFiberSection, elastic or otherwise; can you show an example or a process to me for the f...

vesna, thank your suggestion, but i don't successfully run it. would you check this scripts for me? thank u very much. # ------------------------------ # Start of model generation # ------------------------------ # Create ModelBuilder (with Three-dimensions and 6 DOF/node) wipe; model BasicBuilder -...

vesna,thank u your rplying. using the command(uniaxialMaterial InitStressMaterial) can't apply the initial stress/strain for elastic beam-column element because there isn't IDmatTag term in elastic element, isn't? Or please help me to solve and offer some suggestions for the question as following: t...

vesna,thank u your rplying. using the command(uniaxialMaterial InitStressMaterial) can't apply the initial stress/strain for elastic beam-column element because there isn't IDmatTag term in elastic element, isn't? Or please help me to solve and offer some suggestions for the question as following: t...

[quote="xwjshs"][quote="vesna"]If you divide the cable into multi-segments and model them with the truss elements you will run into stability problem. This is no way to go. You can model the segments with the beam-column elements where the end segments should have pin et one end....

Hi everybody i want to capture the softing part of force-disp. curve. using load command and displacementcontrol can't get the softing part. than imposing the disp. with sp command and there are some warnings as following: " warning plainhandle::handle() - non-homogeneos constraints for node $n...

[quote="vesna"]If you divide the cable into multi-segments and model them with the truss elements you will run into stability problem. This is no way to go. You can model the segments with the beam-column elements where the end segments should have pin et one end.[/quote] vesna , thank you...

Hi, everybody the model is about cable-stayed bridge. each stayed-cable is divided into multi-segments in model and using a truss element to model every segment. all truss elements are same material parameter for each stayed-cable such as elastic modulus and pretension. then, the model is run. but t...

hi vesna

the files with model have sent to your E-mail and please check your E-mail.

look forward to your reply. thank u.

[quote="vesna"]from what i see in your post, it all looks fine. would you send me your files on my e-mail:
vesna AT berkeley DOT edu[/quote]

hi vesna

the model has sent to your E-mail

thank u.

[quote="vesna"]The deformations of dampers should not be zero. I can take a look at your files if you send them to me at vesna AT berkeley DOT edu.[/quote] i sorry and don't find your email. this is script about damper elemnt. #--------------- set dataDir5 DamperData; set dataDirDamper $da...

[quote="vesna"]5 integration points (IP) work well for most of the cases. I choose the number of IP such that the bottom two encompass the plastic hinge. Regarding the area of the fiber, I think the best is to start with a coarser mesh and then to make it finer until moment-curvature does ...

Hi, everybody How many integration points are appropriately to the nonlinearBeamColumn element. for example, in my model, the length of element is nearly 6m becauce the model is very large. and how big area is one concrete fiber for fiber section based on your experience. Could diameter of reinforce...