Bilin02 material

[ssami]

Hi everyone, when I run a steel frame model, in which the uniaxialmaterial Bilin02 has been used, I faced the following problem, please guide me to solve the problem, thank you in advance.

warning could not create uniaxialmaterial Bilin02

[mhscott]

Probably an error with the inputs. You'll have to show us the input command you used.

[ssami]

Probably an error with the inputs. You'll have to show us the input command you used.

Dear Prof. Michael H. Scott, thank you very much for the response.The input command related to Bilin02 that has been used for the model is as follows:

uniaxialMaterial Bilin02 3 $Kspr $strhard $strhard [expr 1.0*$My] [expr -1.0*$My] $LS $LK $LA $LD $cS $cK $cA $cD $th_pP $th_pN $th_pcP $th_pcN $ResP $ResN $th_uP $th_uN $DP $DN;

[selimgunay]

Did you add the model builder to the beginning of your script: model BasicBuilder -ndm $ndm <-ndf $ndf>

[ssami]

Did you add the model builder to the beginning of your script: model BasicBuilder -ndm $ndm <-ndf $ndf>

Yes, I did.
model BasicBuilder -ndm 2 -ndf 3;

[selimgunay]

You may be missing one of the input parameters

Please see line 121 in the source code for bilin02 here: https://github.com/OpenSees/OpenSees/bl ... ilin02.cpp