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I would like more references in the Concrete 02 material behaviour, I am having a hard time to define how the unloading and the reloading are defined in the hysteresis. Are there any references in this matter?

Thanks

I would like more references in the Concrete 02 material behaviour, I am having a hard time to define how the unloading and the reloading are defined in the hysteresis. Are there any references in this matter?

Thanks

I would like more references in the Concrete 02 material behaviour, I am having a hard time to define how the unloading and the reloading are defined in the hysteresis. Are there any references in this matter?

Thanks

I would like more references in the Concrete 02 material behaviour, I am having a hard time to define how the unloading and the reloading are defined in the hysteresis. Are there any references in this matter?

Thanks

I would like more references in the Concrete 02 material behaviour, I am having a hard time to define how the unloading and the reloading are defined in the hysteresis. Are there any references in this matter?

Thanks

I would like more references in the Concrete 02 material behaviour, I am having a hard time to define how the unloading and the reloading are defined in the hysteresis. Are there any references in this matter?

Thanks

I would like more references in the Concrete 02 material behaviour, I am having a hard time to define how the unloading and the reloading are defined in the hysteresis. Are there any references in this matter?

Thanks

I would like more references in the Concrete 02 material behaviour, I am having a hard time to define how the unloading and the reloading are defined in the hysteresis. Are there any references in this matter?

Thanks

I would like more references in the Concrete 02 material behaviour, I am having a hard time to define how the unloading and the reloading are defined in the hysteresis. Are there any references in this matter?

Thanks

I would like more references in the Concrete 02 material behaviour, I am having a hard time to define how the unloading and the reloading are defined in the hysteresis. Are there any references in this matter?

Thanks

Hi, I would like to see more references on the Concrete 02 behaviour.

I am having a hard time to understand how the unloading process works in the hysteresis. I can see the difference between Concrete 01 and Concrete 02, but how do the unloading and the reloading are defined?

Hi,
I was wondering if the group from Bologna did implimented in OpenSees their model for FRP column confinement. If the answer is YES I would like to use your model in my research project.
Thanks

Hello, I'm having problems with a Zero-Length element. When I tested it isolated, with only two points and a mass of 22000kg in a transient analysis, it works just fine. But, when I applied to a 3D bridge model I get convergence problems. The bridge model works fine if I don't apply the gap to this ...

First of all thank you!!!

Second, I wasn't able to find the source code for the rayleigh command, is it available?

Thank you again

Based on the documentation online, it seems that only the Rayleigh damping model is available to define a damping matrix for nonlinear dynamic analysis with OpenSees. Is there a built-in command in OpenSees to define a damping matrix based on specified modal damping ratios?