Search found 93 matches
- Thu Jan 22, 2009 11:09 am
- Forum: OpenSees.exe Users
- Topic: critical load
- Replies: 5
- Views: 1982
- Thu Jan 22, 2009 7:18 am
- Forum: OpenSees.exe Users
- Topic: critical load
- Replies: 5
- Views: 1982
critical load
Hello,
Do you know how we can determine the critical load for a simple frame? (2 columns & 1 beam with vertical loads on columns).
Thank you.
Do you know how we can determine the critical load for a simple frame? (2 columns & 1 beam with vertical loads on columns).
Thank you.
- Thu Jan 15, 2009 8:37 pm
- Forum: OpenSees.exe Users
- Topic: geometric non-linearity settings
- Replies: 3
- Views: 1653
geometric non-linearity settings
Hi,
i am modeling a 3D truss. would you please tell me how i can apply the geometric non-linearity settings in opensees.
(i know in ANSYS program this command is: [b]NLGEOM,ON[/b] but how define it in opensees?)
i am modeling a 3D truss. would you please tell me how i can apply the geometric non-linearity settings in opensees.
(i know in ANSYS program this command is: [b]NLGEOM,ON[/b] but how define it in opensees?)
- Sun Jan 11, 2009 11:02 pm
- Forum: OpenSees.exe Users
- Topic: force-deflection curve
- Replies: 20
- Views: 14541
in the hysteretic material command we can assign only 3 points for the negative direction and 3 points for the positive direction.if we want define more points,how can we do it? i used the example which imancivil mentioned above, the opensees gives error. would you please help me? uniaxialMaterial H...
- Tue Dec 02, 2008 11:47 pm
- Forum: OpenSees.exe Users
- Topic: Block
- Replies: 3
- Views: 1571
- Tue Dec 02, 2008 10:04 am
- Forum: OpenSees.exe Users
- Topic: force-deflection curve
- Replies: 20
- Views: 14541
- Tue Dec 02, 2008 9:30 am
- Forum: OpenSees.exe Users
- Topic: force-deflection curve
- Replies: 20
- Views: 14541
- Tue Dec 02, 2008 8:34 am
- Forum: OpenSees.exe Users
- Topic: force-deflection curve
- Replies: 20
- Views: 14541
- Tue Dec 02, 2008 5:44 am
- Forum: OpenSees.exe Users
- Topic: force-deflection curve
- Replies: 20
- Views: 14541
- Mon Dec 01, 2008 6:24 am
- Forum: OpenSees.exe Users
- Topic: Arc Length settings
- Replies: 1
- Views: 1055
Arc Length settings
Dear friends, i have a problem to set the parameters $arclength $alpha. There is my script at the openSsees community with "Euler load" topic: http://opensees.berkeley.edu/community/viewtopic.php?p=16670#16670 one of the members who is "imancivil" repaired my script and explained about arc-length me...
- Mon Dec 01, 2008 2:46 am
- Forum: OpenSees.exe Users
- Topic: Euler load
- Replies: 10
- Views: 3449
arc-length settings
Dear imancivil
thank you very much. as you mentioned if i use LoadControl integrator, after a few steps analysis fail.
Dear all,
how should i set the $arclength $alpha?
thnx
thank you very much. as you mentioned if i use LoadControl integrator, after a few steps analysis fail.
Dear all,
how should i set the $arclength $alpha?
thnx
- Sun Nov 30, 2008 11:20 am
- Forum: OpenSees.exe Users
- Topic: Euler load
- Replies: 10
- Views: 3449
Daer silvia, in ANSYS to capture the force-deflection curve for a single element it is possible to apply an axial load on a constrained dof. (use BEAM188 element). with doing the nonlinear static analysis the force-deflection curve obtained. but how can i do it in opensees? I look forward to hearing...
- Sun Nov 30, 2008 10:50 am
- Forum: OpenSees.exe Users
- Topic: Euler load
- Replies: 10
- Views: 3449
- Sat Nov 29, 2008 10:31 am
- Forum: OpenSees.exe Users
- Topic: Euler load
- Replies: 10
- Views: 3449
Euler load
i want to get the Euler load (buckling load). the end supports are hinge. the model has imperfection at the center of element, but the deflection is constant. would u please tell me what the problem is? how can i get Euler load #Units: kg,cm wipe model BasicBuilder -ndm 3 -ndf 6 # nodal coordinates:...
- Sat Nov 29, 2008 9:08 am
- Forum: Soil Modelling
- Topic: Elasto-Plastic Material
- Replies: 2
- Views: 2148