Search found 5 matches

by MahmoudRezaei
Sat Oct 24, 2015 10:43 am
Forum: OpenSees.exe Users
Topic: three dimension truss analysis
Replies: 4
Views: 4054

Re: three dimension truss analysis

thanks a lot geena, it works properly...
by MahmoudRezaei
Sat Oct 17, 2015 7:25 am
Forum: OpenSees.exe Users
Topic: three dimension truss analysis
Replies: 4
Views: 4054

three dimension truss analysis

Hi
I have modeled a simple 3D truss structure and when i run it, i receive this error:

WARNING BandGenLinLapackSolver::solve() -LAPACK routine returned 28
WARNING Linear::solveCurrentStep() -the LinearSOE failed in solve()
StaticAnalysis::analyze() - the Algorithm failed at iteration: 0 with domain at load factor 1
OpenSees > analyze failed, returned: -3 error flag

I have considered enough constraint and used Penalty method for constraints option but this error is still exist.
I appreciate if somebody helps me.
Here is the code:

wipe
wipeAnalysis

model BasicBuilder -ndm 3 -ndf 6

node 1 0 0 0
node 2 2 0 0
node 3 0 2 0
node 4 2 2 0
node 5 1 1 1

fix 1 1 1 1 1 1 1
fix 2 1 1 1 1 1 1
fix 3 1 1 1 1 1 1
fix 4 1 1 1 1 1 1


uniaxialMaterial Elastic 1 300

element truss 1 1 5 10.0 1
element truss 2 2 5 10.0 1
element truss 3 3 5 10.0 1
element truss 4 4 5 10.0 1


pattern Plain 1 "Linear" {
load 5 0.0 0.0 -5.0 0.0 0.0 0.0
}

recorder Node -file example.out -load -node 5 -dof 1 2 3 disp

integrator LoadControl 1
system BandGeneral
numberer Plain
constraints Penalty 1e17 1e17
algorithm Linear
analysis Static
analyze 1
by MahmoudRezaei
Wed Apr 15, 2015 12:11 pm
Forum: Useful Scripts.
Topic: Finding Opensees directory
Replies: 6
Views: 14994

Re: Finding Opensees directory

Hi fmk, thanks for replying
I have seen your presentation pdf file about “adding your code “ and my previous question was based on that file. The problem is that I can’t find the “C:\???\openseesDeveloper\material “ directory which you mentioned in that file for adding new material.
do I have to download all of those folders and file from this URL link:
http://opensees.berkeley.edu/WebSVN/lis ... fff9b576eb
I appreciate if you answer me again
by MahmoudRezaei
Tue Apr 14, 2015 1:08 pm
Forum: Useful Scripts.
Topic: Finding Opensees directory
Replies: 6
Views: 14994

Finding Opensees directory

Hi everybody,
I want to add a new material to opensees, so I need to access to OPENSEES/…/Developer/Core directory. But I can’t access to this directory because in order to install opensees, we need to install ActiveTcl and after that we have an exe. file of Opensees which is enough to start Opensees program and the above directory doesn’t be generated at all.
Please help me, how to find this directory. Thanks.
by MahmoudRezaei
Tue Apr 14, 2015 1:05 pm
Forum: Framework
Topic: opensees directory for adding new material
Replies: 1
Views: 2835

opensees directory for adding new material

Hi everybody,
I want to add a new material to opensees, so I need to access to OPENSEES/…/Developer/Core directory. But I can’t access to this directory because in order to install opensees, we need to install ActiveTcl and after that we have an exe. file of Opensees which is enough to start Opensees program and the above directory doesn't be generated at all.
Please help me, how to find this directory. Thanks.