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Dear Mr.McKeena

Thank you for your advice.
As you indicated, the analytical model had turned into be plastic by eleLoad.

>what is the loadControl 1.0 1 doing?
Sorry. "loadControl" is a procedure created by me.

It means....
integrator LoadControl 1.0
analyze 1

Hello. I have tried codes as follows. -------------------------------------------------- [Definition of analytical model...] puts "[eigen 1])]" pattern Plain 1 1 { eleLoad -ele 1 -type -beamUniform 1.0 } loadControl 1.0 1 puts "[eigen 1])]" ---------------------------------------...

Dr.Scott Thank you for your reply. I realized my mistake by your advice. Actually, I have used unsupported command "nodeReact", it performs as I mentioned. (I found this command in source code.) I have confirmed that "nodeDisp", "nodeVel", "nodeAccel" work fin...

Hello. I have a question about real-time output commands(nodeDisp, nodeVel..). These commands will return zero unless there is a recorder command corresponding to value inquired by real-time command. If possible, I would like to use real-time commands without unnecessary file access by recorder. Do ...

I have confirmed the correction in rev.5096.
Thanks.

I have checked the source code "Steel01.cpp". Then I think the source code seems to implement Ludwik's hardening equation (not the equation proposed by Dr. Filippou et al. in EERC83-19). But the strain hardening exponent "0.8" is incomprehensible. I think the value 0.2-0.3 is be ...

Hello, bridger, inguan118. I found the description <Steel01 -- bilinear steel model with linear kinematic and "exponential" isotropic hardening> in the page "OpenSees Modeling Capabilities" ( http://opensees.berkeley.edu/OpenSees/user/modellingCapabilities.php ) The implementatio...

Thank you for your reply, vesna.

I have carried out some simple tests and understood the implementation roughly.

But the implementation seems not to accord the suggestion in EERC 83-19.

Where does the exponent "0.8" come from?

Regards.

Hi I'm confused about the isotropic hardening rules of Steel01/02(arguments a1,a2,a3,a4) The rules in Steel01/02 are different from the equation ( 3.8 ) of EERC 83-19? The equation in EERC 83-19 is "sigma_st / sigma_y = a1*(epsilon_max / epsilon_y - a2)" that seems to correspond literally ...

Hi. I found a bug in Steel01.cpp(rev.4950) See line 82(in added function "OPS_NewSteel01()") if (numData == 3) { dData[3] = STEEL_01_DEFAULT_A1; dData[4] = STEEL_01_DEFAULT_A2; dData[5] = STEEL_01_DEFAULT_A2; <<<<<<<< Please correct "A2" to "A3" dData[6] = STEEL_01_DEFA...