The OpenSees Community

Hello , I am trying to compile opensees in suse 9.3. I got the error message below while linking the executable. Does anybody have any idea what is missing ? Thanks. /raid/jfh/tort0008/OpenSees/SRC/tcl/TclFeViewer.o(.text+0x337): In function `TclFeViewer::TclFeViewer[not-in-charge](char const*, int,...

Hello, Do anybody know of a simple, free source code analyzer for C++ code, which during an execution run would put out a list of functions showing the percentage of the computations being sapped by each function ? I believe the transient analysis is running slow. I am using gcc compiler in Redhat 9...

Hello,

I tried the command below and it worked.

pattern Plain 1 "Series -dt $dt -filePath $filename " {
load 1 1300.0 0.0 0.0 0.0 0.0 0.0
}

Hello,

I wonder whether it is possible to specify a force-based load path at specific node for a specific degree of freedom.

like for Node # 1 in the axial direction

0 kips at 0 sec
25 kips at 0.5 sec
-25 kips at 1.0 sec
50 kips at 1.5 sec
.
.
.



Thanks,
Cenk

Hello Frank,

Valgrind showed me where the problem is. It was an indexing error in my coordinate transformation function. Now, it looks fine.

Thanks,
Cenk

Hello Silvia,

I compiled this version by myself. Here is the command that I used for elastic perfectly plastic material.

uniaxialMaterial ElasticPP 1 4500 0.00089

uniaxialMaterial ElasticPP 2 29000 0.00276

Hello Silvia,

Thanks for your messages. I am using 1.6.2 and RCFT_conc is the concrete model that I added to opensees for rectangular concrete filled tube members. But I also tried the same script with ElasticPP and I had the same segmentation fault.
Thanks.
Cenk

Here is the tcl script that I am having the segmentation error # comment out one of lines if wish to see graphics or not #set displayMode "displayON" set displayMode "displayOFF" model BasicBuilder -ndm 3 -ndf 9 # tag X Y Z node 1 0 0 0 node 2 0 0 12 # node DXs DYs DZs RX RY RZ D...

Hello , I am getting a segmentation fault (core dumped) after the analysis is complete. It appears in the function Tcl_Eval but I could not step into it using GDB. Anybody knows what Tcl_Eval does ? or any idea how to debug this. Here is the bt output #0 0x42075061 in malloc_consolidate () from /lib...

Hello, I tried compiling version 1.6.2 in visual c++ and got the following error messages in the file superlu.h \opensees1.6.2\opensees\src\system_of_eqn\linearsoe\sparsegen\superlu.h(78) : error C2146: syntax error : missing ';' before identifier 'options' opensees1.6.2\opensees\src\system_of_eqn\l...

Hello , I added a new function as getA to the fullgenlinSOE class to print out the global structural stiffness matrix. I am calling this function in the newtonraphson.cpp right after the stiffness matrix is assembled. But I found that all entries of my global stiffness matrix is equal to my penalty ...

Hello, I am implementing a new type of constraint as a subclass of MP_Constraint. In this new function I need to access to the coordtranf object of the elements associated with the constraint equations. I need the coordtranf object to get the direction vectors of the elements. Does anbody have an id...

Hello,

Does anbody know what "initial" refers to in functions like getInitialStiffness, getInitialFlexibility etc. ? Is it beginning of step or begining of increment or beginning of analysis?

Thanks,
Cenk

Hello Frank, Thanks a lot for your helpful comments. I think if I do not associte any mass with my middle degrees of freedom, static condensation does not create a problem in dynamic analysis. I am using those degree of freedoms only to improve my stiffness formulation. In that case (aK + bM)^-1 = a...

Hello Frank,

Thanks for your comment. I wonder whether this problem still holds if I do not use a consistent stiffness matrix. I am planning to assemble the mass matrix from live loads and dead loads assigned to joint degrees of freedom.

Thanks again.