Search found 586 matches

by mhscott
Wed Feb 17, 2021 5:52 am
Forum: OpenSeesPy
Topic: Adding new p-y material in opensees
Replies: 2
Views: 649

Re: Adding new p-y material in opensees

Develop it as p-y. Uniaxial materials are scalar functions and have no inherent meaning. The calling objects treat the functions appropriately.
by mhscott
Mon Feb 15, 2021 6:59 am
Forum: OpenSees.exe Users
Topic: Step time dependent material
Replies: 5
Views: 881

Re: Step time dependent material

It could be an error in the material state determination, or in how you set up the testing script. I can't really tell.
by mhscott
Fri Feb 12, 2021 5:29 am
Forum: OpenSees.exe Users
Topic: Step time dependent material
Replies: 5
Views: 881

Re: Step time dependent material

You can get the time step from ops_Dt, a global variable. Search the source code for it. You can see an example in BilinearOilDamper.cpp.
by mhscott
Thu Feb 11, 2021 5:59 am
Forum: OpenSees.exe Users
Topic: Hysteretic material
Replies: 1
Views: 1025

Re: Hysteretic material

No, you can only define three points on the backbone of the HystereticMaterial.
by mhscott
Sat Feb 06, 2021 7:46 am
Forum: OpenSees.exe Users
Topic: ArpackSolver::Error with _saupd info = -9999
Replies: 2
Views: 856

Re: ArpackSolver::Error with _saupd info = -9999

Try asking for one or two modes instead of five.
by mhscott
Thu Feb 04, 2021 1:39 pm
Forum: OpenSeesPy
Topic: Question on the best practice to run multiple OpenSeesPy sessions in parallel
Replies: 2
Views: 1312

Re: Question on the best practice to run multiple OpenSeesPy sessions in parallel

This presentation by Dr. Minjie Zhu describes parallel computing with OpenSeesPy very well: https://youtu.be/vjGm2kM5Ihc
by mhscott
Tue Feb 02, 2021 12:56 pm
Forum: OpenSeesPy
Topic: fiber section stress-strain output through recorder command
Replies: 9
Views: 3092

Re: fiber section stress-strain output through recorder command

This will be fixed in the next version of OpenSeesPy. For now, use str() like described here: https://wp.me/pbejzW-Si
by mhscott
Tue Feb 02, 2021 12:52 pm
Forum: OpenSeesPy
Topic: Warning material type FluidSolidPorousMaterial is unknown
Replies: 3
Views: 1058

Re: Warning material type FluidSolidPorousMaterial is unknown

Thanks! I will update the documentation.
by mhscott
Tue Feb 02, 2021 8:37 am
Forum: OpenSees.exe Users
Topic: Reactions are different between Matlab and OpenSees
Replies: 1
Views: 619

Re: Reactions are different between Matlab and OpenSees

Are all other results for more basic analyses, e.g., static, eigenvalue, the same or did you create nonlinear response analysis and hope for the best? Take a look at these steps: https://wp.me/pbejzW-1C
by mhscott
Tue Feb 02, 2021 8:32 am
Forum: OpenSeesPy
Topic: Warning material type FluidSolidPorousMaterial is unknown
Replies: 3
Views: 1058

Re: Warning material type FluidSolidPorousMaterial is unknown

Looks like it's entered as "FluidSolidPorous". Is the command different from Tcl?

Code: Select all

MaterialsMap.insert(std::make_pair("FluidSolidPorous", &OPS_FluidSolidPorousMaterial));
by mhscott
Sun Jan 31, 2021 7:02 am
Forum: OpenSeesPy
Topic: converting opensees codes to openseespy
Replies: 3
Views: 1489

Re: converting opensees codes to openseespy

This script does some basic conversions but doesn't handle loops, conditionals, or procs.

https://github.com/OpenSees/OpenSees/bl ... nSeesPy.py
by mhscott
Thu Jan 28, 2021 2:14 pm
Forum: Parallel Processing
Topic: OpenseesMP incremental dynamic analysis
Replies: 3
Views: 1414

Re: OpenseesMP incremental dynamic analysis

Make sure all analyses use different file names
by mhscott
Thu Jan 28, 2021 2:06 pm
Forum: OpenSeesPy
Topic: Extract fixity condition of nodes
Replies: 4
Views: 1225

Re: Extract fixity condition of nodes

Ahh, you have to do it after an analysis. The equation numbers aren't assigned until the analysis starts.
by mhscott
Wed Jan 27, 2021 3:29 am
Forum: OpenSeesPy
Topic: Extract fixity condition of nodes
Replies: 4
Views: 1225

Re: Extract fixity condition of nodes

You can use nodeDOF and the DOFs with -1 are fixed.
by mhscott
Tue Jan 26, 2021 5:51 am
Forum: OpenSees.exe Users
Topic: Is there pattern for specific angle?
Replies: 1
Views: 738

Re: Is there pattern for specific angle?

You can define two patterns with trigonometric components.