The OpenSees Community

By the way I think coupledzerolength has already a sendself/recself procedures but something seems not to work for some reason

Thanks for your reply. My libraries are .so and .o files resting in the same folder with my tcl model files (myUser/data/sessions/XXXX/Base). I tried adding "./" to the LD_LIBRARY_PATH using LD_LIBRARY_PATH = ${LD_LIBRARY_PATH}:./ .... it did not work Can you please indicateme how to set t...

Dear FMK, Yes I am using CoupledZeroLength elements, Pinching4, and 2 custom Materials I programmed using Pinching4 as a template (I provided sendself/recself procedures for these custom materials) I tried also using the OpenSees Lab on NEESHub but it also has problems. There it seems not to be able...

Dear fmk, Can you help me on guessing why I get the following error? I am trying to use a material model I implemented using OpenSeesSP (through the command "mpirun -np 8 OpenSeesSP mainCyclic.tcl" .... It works well when using only one core). I am also using ElasticMultilinear, and Elasti...

Dear fmk, Can you help me on guessing why I get the following error? I am trying to use a material model I implemented using OpenSeesSP (through the command "mpirun -np 8 OpenSeesSP mainCyclic.tcl" .... It works well when using only one core). I am also using ElasticMultilinear and Elastic...

Dear fmk,

Is there an updated version of Pinching4 that can be used in parallel computing? I have a model does use this model but only works when NP = 1;

Thanks David P.

Dear fmk,

Is there an updated version of Pinching4 that can be used in parallel computing?

Thanks David P.

Dear Frank or Vesna, I am having problems with a model of a shear wall that has problems converging to a solution when unloading and reloading in opposite direction (i.e., passing through zero) in a reversed cyclic analysis. I don't see why? and what combination for the analysis parameters for the d...

Please if someone can help me with this
Dear Frank, Dear Vesna !

Frank I forgot to thank you for your reply. It solved the problem.

Hello Frank, Silvia or Vesna I am trying to simulate the flexural response of a element I tested in our lab. I am using the forceBeamElement with the sectionAggregator to add the flexural behavior. I am modeling the M-Rotation response at the section level using the pinching4 material. The model is ...

All, I am trying to model the cyclic response of some steel members using fiber sections and want to include damage in the member. I was looking at the uniaxialMaterial Fatigue that calculates the damage index based on the number of cycles. I want to model damage based on the dissipated energy (like...

Hello I am trying to run apply a displacement history (varying amplitudes) I obtained from a test to a model. I am using the code below but I don't get my analysis to do a cycle and instead it keeps loading monotonically. I have also tried changing the integrator to LoadControl but the analysis quit...

Thanks for your reply Frank, There is not error message, the program executes all the monotonic displacements in the pattern I set. However the response I am getting from the zeroLength elements does not match the backbone in the pinching4 uniaxial material. After the peak the program for some reaso...

Good Evening! I am trying to run a 4point bending model model using elasticBeamColumn and 2 zeroLength with pinching4 elements to model the hinges at the loading points. The parameters for P4 are below and included a descending branch but I don't get the analysis to continue on the negative stiffnes...