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thanks alot.i change the slope of second line in variable slopes and the hystertic curve of all of them bi-linear.either the total deformation of hystertic curve is more than input number .is hystertic material act in dynamic analysis true?i think this material acting wrong?

dear silvia
which command calculate ,length of file.iwant to put the length of accelerograh in analyze command and the input accelerograph is variable and i need to put the length of file.

if you want i will send you full program . please say me is this command for record the deformation and force of element true or maybe the problem from this command. recorder Element -file $dataDir/eled.txt -time -ele 133 deformation recorder Element -file $dataDir/elef.txt -time -ele 133 force the ...

uniaxialMaterial Hysteretic 34 6 0.00226 6 0.02226 18.168 0.0268 -6 -0.00226 -6

-0.02226 -6.95 -0.02262 0 0 0 0,

thanks alot .the problem solve.im putting FOR and wipe first command of progrom and the cycles act.

i cant understand your command.if i remove FOR in this program i can run and no problem but in cycle i hava this problem.is the command that i wrote error which one?if one of them wrong why work true if i choose no cycle/

yes,but in analysis i got the bi-linear curve .i sent you the command that i use for got hystertic curve.they are true?
what can i do?in history analysis the third line disable.
i m guessing for short different between my deformation number the third line doesnt exist.

NO PINCHING AND NO DAMAGE(0 0 0 0)

ok i done the puts command before hystertic material and i got this number:
6 0.00226 6 0.02226 18.168 0.0268
-6 -0.00226 -6 -0.02226 -6.95 -0.02262

im putting this command the data showing that response of three line but when i get the hystertic curve of this material it showing two line. i send you the command that i use for hystetic curve: #uniaxialMaterial Hysteretic $matTag $s1p $e1p $s2p $e2p $s3p $e3p $s1n $e1n $s2n $e2n $s3n $e3n $pinchX...

i use this command later in first line program i send you the program .i should run more than 1000 analysis and i should use from FOR command.but i think the opensees cant delete previous data of model in each cycle.help me please # OpenSees model # # Units: ton, m, sec # ---------------------------...

i placed the wipe before my model but it didnt run and wrote invalid command name:node what can i do?

the model is too long so i send you a commands that related this topic; #============Define parameters set fy 2.4e4 ; # Yield stress !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! set E 2.1e7 ; # Young's modulus set G 8.08e6; # Shear modulus set bx 18.0; #diaphragm length set by 15.0; #Diaphragm width ...

i want to run my model with different values of PGA so i input ALL of command and model in cycle with command for.when the first cycle finished and the second value of PGA start i got this error :node with tag 1 already exist in model warning failed to add node to model. in analysis i didnt change t...

modelling friction damper?elasto plastic