The OpenSees Community

hi limingjiang
I am really appreciated your help. but i cant use thermalLoad input as 1 -17 2 17, because my model behavior will be changed in that load pattern.

fmk wrote: > the script runs on windows with the latest .exe .. what operating system > are you using? hi Professor I am using windows 7 64-bit. when i run the script that i paste here, it goes for 5 or 6 step ( about 2cm for node whose response controls the solution ) then the temperature is not va...

hi
I really need this help, Is anybody here who could help me?

hi Prof. McKenna there is a small example of my project: wipe ; model basic -ndm 2 -ndf 3 ; node 1 0 0 node 101 0 0 node 2 100 0 node 102 100 0 node 3 200 4 node 103 200 4 node 4 300 0 node 104 300 0 node 5 400 0 node 105 400 0 fix 1 1 1 0 fix 5 1 1 0 fix 101 1 1 1 fix 102 1 1 1 fix 103 1 1 1 fix 10...

hi to every one I'm working on the thermal buckling of beam on Elastoplast foundation. but i have a huge problem with "the temperature is invalid" error! :( when i run the model without the weight of the beam, this error disappear, but when i try with weight... :( Do you know how can i fix...

hi

Can anyone help me in this problem?

hi Vesna and everybody i tried too model a heated beam in opensees 2.4, but when i try to run the scrip the "OpenSees.exe has stopped working" error appear. :( for example this scrip have this error: wipe ; model basic -ndm 2 -ndf 3 ; node 1 0 0 node 2 100 0 fix 1 1 1 1 fix 2 0 1 1 uniaxia...

hi

i want to use a opensees 2.4.0 to model a heated pipe. so i need to know that is steel02thermal material considering The Longitudinal expansion due to temperature rise? and can i use a Displacement control method to record temperature-displacement curve?

hi everybody i need to model a material witch that behave PP in compression and have a softening behavior in tension, and the value of E is different in compression an tension, i attached the Stress-strain curve of this material in following link: http://images.pnimedia.com/imaging/ImgServer.ashx?cm...

hi vesna the output contain 21 values and these values are displacement for each node in last step. these are my loads and these loads are symmetric: set w1 -3875 set w2 -1937.5 pattern Plain 1 Linear { load 1 0.0 $w2 0.0 load 2 0.0 $w1 0.0 load 3 0.0 $w1 0.0 load 4 0.0 $w1 0.0 load 5 0.0 $w1 0.0 lo...

Hi again

can anybody fix this problem??:(

i really need a help

HI everybody i made a symmetric model in shape and loading. but when i run the script the displacements are asymmetric!!!!!! i dont know why this happen and how can i fix this :( :( :( this is my script: wipe ; model basic -ndm 2 -ndf 3 ; node 1 0. 0. ; node 2 1000. 0.; node 3 2000. 0. ; node 4 3000...

hi vesna

thanks a lot for your help i assigned same material in tension and the problem disappear :):)
wow, im really thankfullllllllll

hi i need some kind of material that model a soil behavior, i mean a material that be perfectly plastic in compression and doesn't have tensile strength. i tried Elastic-Perfectly Plastic Gap Material, but the script did not converge. then i tried Series Material and I used ENT + PP material, but i ...

hi fmk
tnx a lot for your help.

i want to model a pipeline and see the post-buckling behavior of that pipe, should i use a model with plastic hing or steel02 material can model it truly?