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Thanks for response. That means the stress in Parallel material is only sum up of the sub-components?

Hi, everyone. I'm currently using parallel and series materials to merge some sub-components. I have understood how each material works for my components, but I cannot find the equations how they can be combined in manual. Can anyone explain the geometric procedure for parallel and series materials ...

All, I solved the problem by changing Windows 64 bit to 32 bit. Thanks!

Hi, everyone. I generated .dll file based on VS 2017 with ElasticPPcpp. The thing is when I was running an example, I got this error message: "Warning could not create uniaxialMaterial Mymat." Based on my understanding, this means my Opensees cannot find the .dll file at all. I even added the path t...

Yes, I agree with your statement. Thank you for your help and advice!

Yes, I just wanted to check the period of the damaged structure compared to the initial statement before earthquake. Do you think that this is a proper approach for it?

Thank you for your concern.

Dear selimgunay, Thank you for your comments! First of all, I actually used Bilin material to define the behavior of beam and column in the modeling, and I applied the verified parameters to the material. Then, can I understand the results as that the intensity of the earthquake was not sufficient t...

Hello, everyone. I'm currently trying to analyze the change of the structural period at each time step based on nonlinear dynamic analysis. I have two questions related to the study. First question is....... as for the fundamental period of the example (RC frame) is 1.5 s (verified), I've got the ma...

Hello, I have some problem on my modeling which is designed to do dynamic analysis with ground motion data. Before the end of the ground motion data, the analysis finished with message as below: WARNING: CTestNormDispIncr::test() - failed to converge after: 200 iterations current Norm: 0.010782 (max...

Hello, I'm using Bilin material model as structural element, and I ask your advice for my script. The problem is... values of inter-story drift ratio from my modeling are too small. It is close to zero! I guess the modeling is too stiff and input data for various parameters of the material model has...

Thank you for your help. However, domain error was occurred as below. Is there any solution for this problem? --------------------------------------------------------- domain error: argument not in valid range while executing "expr sqrt($lam)" ("foreach" body line 2) invoked from within "foreach lam...

Hello, everyone I'm trying to get the natural frequency of the building before and after earthquake. When I obtain the natural frequency from initial state of the building, I usually put the eigen command between "nodal mass" of the building and "recorders" But, I want to get the natural frequency o...

Dear fmk Thanks for your answering. You mean I have to add more constraints to the all moment connections, e.g. fix 1111 1 1 0, fix 1112 1 1 0, fix 1211 1 1 0 and so on? And should I delete an equalDOF of each floor? +) When I perform the dynamic analysis, I always receive this message. Can I ignore...

Hello, I modeled a code for a dynamic analysis at RC frame including one-component model. However, when I tried to get eigenvalues from my model, opensees gave me an error message as below. In my current situation, only [eigen 1] can be obtained from my model. To perform the dynamic analysis using R...

hello, fmk.
Thanks for your reply!