The OpenSees Community

vesna wrote: > Shell element is more appropriate for out of plane loads. What section did > you assign to shell element? Thank you, vesna. I assign a RC multilayered shell section coded by myself. Yes, as you said, I can get a good result for the out-of-plane case. However, for shear wall structures...

Hi, To validate my plate section material. I used the shell element to analyze a shear wall structure subjected to a in-plane load. The numerical result is compared with that calculated by plane stress Quad element. A well agreement can be found for linear case. For nonlinear case, the Quad element ...

OpenSees/SRC/material/section/MembranePlateFiberSection.cpp
line 372

tangent(0,3) += -z*dd(0,1) ;

should be
tangent(0,4) += -z*dd(0,1) ;

2>tcl.lib(commands.obj) : error LNK2019: unsolved external symbol "public: __thiscall ItpackLinSOE::ItpackLinSOE(class ItpackLinSolver &)" (??0ItpackLinSOE@@QAE@AAVItpackLinSolver@@@Z)， "int __cdecl specifySOE(void *,struct Tcl_Interp *,int,char const * *)" (?specifySOE@@YAHPAXPAUTcl_Interp@@HPAPBD@...

Thank you, vesna.


vesna wrote:
> For the purpose of your model i think it is better to replace rigid link
> with a very rigid elastic element. If you know the properties of the rigid
> elements use them. Otherwise, assign very high area and moment of inertia
> to this element.

Hi, everybody, I want to apply a displacment at a node of rigidlink, but I didn't get any right results. The reaction force is zero. Why? How to do this? Thanks. My sample script is as follows: wipe; model basic -ndm 2 -ndf 3 # nodal coordinates: node 1 0 0.0 node 2 0 1.0 node 3 0 2.0 node 4 0 3.0 #...

Thank you. Yes, it works with loadControl. However, there is convergence problem using loadControl in reverse cycle pushover analysis, so I changed it to displacementControl.

vesna , it works now. I really appreciate your help. Now I have another question. I want to apply a load history from a file, and I do it in this way: set History "Series -dt 0.1 -filePath Force.txt"; pattern Plain 1 $History { load $node 1.0 0.0 0.0; } integrator DisplacementControl $node 1 0.001; ...

Hi, all, I have a set of data from a real experiment of a reverse cycle displacement control of a structure. And I am trying to model its behavior with Opensees, so I do a static analysis by applying the displacements (loaded from a file). To do that I have to define a time series like this: set His...

Hi, FMK,

Which tools or software do you use to plot the UML figures?

Thanks.

Xiang

baozai wrote:
> excuse me. may I ask you a question about the use of quad material? what is
> the 3Ddimentional material in Opensees?


use for shear wall.

Hi, all,

I want to devolop a material model for shell element.

Should I built the material model in the nD material class or section classs?

Thank you.


H.J. Xiang

fmk wrote: > can you download the .exe again .. i am currently at minor version 2.2.2.d > .. if this fails, download the OpenSeesDeveloper code again and replace > your current code in /core with that in the newly downloaded files. Thank you Dr. fmk. I built the dll in Win XP using VS 2005. It works...

fmk wrote:
> when you run OpenSees what version number appears?


It is 2.2.2. Thank you very much.

fmk wrote:
> is the .dll in the same directory as the script.

Thank you fmk.

I put the .dll in the same directory as the script.

I also try to put it in the folder "material".