Search found 48 matches

by ehsanala
Mon Jun 02, 2014 4:43 am
Forum: OpenSees.exe Users
Topic: strain
Replies: 5
Views: 1196

Re: strain

Dear friends
Reply please :!:
by ehsanala
Fri May 30, 2014 8:37 pm
Forum: OpenSees.exe Users
Topic: strain
Replies: 5
Views: 1196

strain

hi
Type of element is brace and with command "nonlinearBeamColumn" is written.

regard
by ehsanala
Wed May 21, 2014 11:24 pm
Forum: OpenSees.exe Users
Topic: strain
Replies: 5
Views: 1196

Re: strain

hi
Type of element is brace and with command "nonlinearBeamColumn" is written.

regard
by ehsanala
Sat May 17, 2014 8:34 am
Forum: OpenSees.exe Users
Topic: strain
Replies: 5
Views: 1196

strain

hi
Which recorder can obtained axial strain on braces? Shear strain too?
thanks
by ehsanala
Fri Jan 31, 2014 4:09 am
Forum: OpenSees.exe Users
Topic: semi-rigid connections
Replies: 4
Views: 1288

semi-rigid connections

hi
How to model semi-rigid connection?
Please help.

regard
by ehsanala
Wed Nov 13, 2013 6:30 am
Forum: OpenSees.exe Users
Topic: problem converge
Replies: 6
Views: 1349

Re: problem converge

Why is not the end of the analysis?
by ehsanala
Tue Nov 12, 2013 9:16 pm
Forum: OpenSees.exe Users
Topic: uniaxialMaterial
Replies: 9
Views: 4118

Re: uniaxialMaterial

thanks

I asked because I had doubts.
Can I use the uniaxialMaterial SelfCentering instead of uniaxialMaterial SMA?
by ehsanala
Tue Nov 12, 2013 9:13 pm
Forum: OpenSees.exe Users
Topic: problem converge
Replies: 6
Views: 1349

Re: problem converge

Why is not the end of the analysis?
do not draw Force-displacement curve?
by ehsanala
Tue Nov 12, 2013 7:15 am
Forum: OpenSees.exe Users
Topic: problem converge
Replies: 6
Views: 1349

problem converge

hi What is the problem in the following model? thanks all wipe #unit N-m-s file mkdir ddd set txt [open ddd/d3.txt w+] puts $txt set pi [expr 4*atan(1)] puts $pi model basic -ndm 2 -ndf 3 set h 3.9624 set x 9.144 node 1 0. 0. node 2 0. $h node 3 0. [expr 2*$h] node 4 0. [expr 3*$h] node 5 $x 0. node...
by ehsanala
Mon Nov 11, 2013 11:20 pm
Forum: OpenSees.exe Users
Topic: uniaxialMaterial
Replies: 9
Views: 4118

uniaxialMaterial

hi I have become familiar with the behavior of uniaxialMaterial SMA to built a simple model . Why stress-strain curve is not drawn? Can I use the uniaxialMaterial SelfCentering instead of uniaxialMaterial SMA? Do these two materials have similar? Do these two materials applications are the same? Ple...
by ehsanala
Wed Nov 06, 2013 4:37 am
Forum: OpenSees.exe Users
Topic: Analysis
Replies: 16
Views: 5757

Re: Analysis

hi

I built a structural model with damper. Algorithm is only linear convergence is analyzed. But when Newton algorithm to analyze the structure without damper works. Comparing the two models is correct?

thanks
by ehsanala
Wed Nov 06, 2013 4:30 am
Forum: OpenSees.exe Users
Topic: Xbrace
Replies: 3
Views: 961

Re: Xbrace

hi
Do you need to model cross brace in the middle is the common nodes or elements must be modeled separately?
If it takes the common node is the primary imperfection modeling approach to how the buckling brace?

regard
by ehsanala
Mon Nov 04, 2013 12:59 am
Forum: OpenSees.exe Users
Topic: Analysis
Replies: 16
Views: 5757

Analysis

hello I made the model wih damper.the model to run with algorithm linear and Model will converge . If the model without damper to analyze ,with algorithmNewton will converge. what is problem ? the comparison of the two models is correct? If dt of earthquake is equal to 0.02.and to reduce dt of analy...
by ehsanala
Mon Nov 04, 2013 12:39 am
Forum: OpenSees.exe Users
Topic: Xbrace
Replies: 3
Views: 961

Xbrace

hi
For modeling the X braces have a common node used in the middle elements?

If so how can to made buckling brace with extra-axial 1/500?

regard
by ehsanala
Wed Sep 04, 2013 12:07 am
Forum: OpenSees.exe Users
Topic: error
Replies: 1
Views: 499

error

hi What is the cause of the error? groundmotion start!.Time: 0.000000 WARNING - ForceBeamColumn2d::update - failed to get compatible element forces & deformations for element: 4201(dW: << 3131.03) Domain::update - domain failed in update Newmark::update() - failed to update the domain WARNING Linear...