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Hi... I also have some question about parameters of hysteretic material. I found another question related with this topic in this post, but i can't find answer and any other solution. In the hysteretic model, the damage parameters related with ductility and hysteretic energy, but how can I deside th...

Thanks... I meant strength degradation... I just used hysteric material like below... 2 tcl files are in the manual. In " RCyclicPinch.tcl" for drawing stress-strain curve, ---------------------------------------- source procRCycDAns.tcl .... uniaxialMaterial Hysteretic 1 4326.0 0.006995 4...

Hi... happy new year... I just try to use uniaxialMaterial Hysteretic... For the stress strain curve, I used "procRCycDAns.tcl" script which is included in manual. If backbone curve has only hardening, there is no problem. But, if it has softening, namely, e3p<e2p, it makes an error. This ...

Hello From a few months ago, I am trying to find way to decide parameters for pinching4 model. But I can't find any good ways... ^^ So in my research, I just assumed several values for pinching4. But reviewers ask how realistic these values are. Even though I sent email to researhers of UW, I can't ...

Hi...
Is there somone who has an experience for wind buffeting analysis?
Give me some idea....
Thanks....

Hi. everyone... To get plastic hinge rotation at the end of a concrete column, I just used a zerolength element with specified moment-rotation relationship. Is it possible to use beamWithHinges element to get the rotation level of plastic hinge ? If someone has an example about beamwithhinges elemen...

Hi... I'm trying to model the behaivor of the Caisson type Quay wall with backfill soil. So, I used PressureDependent and IndependentMultiyield material. But, when I updated material stage from elastic to plastic, computer runs for more than 2 days... not stop... Are there someone what is problom ? ...

Hi... everyone...
For the modeling of the soil-structure interaction,
I am looking for an example using the PressureDependMulityield or
PressureIndependMultiyield material ?
Please give me some advice... or some input source...
Thanks...

Thanks... silvia...
I checked my source. Like your advice, even though I put the "eigen" command before and after the "analyze" command, I just checked the latter one.
Thanks again...

Hi... For the time history analysis of bridge, I tested several cases for the zerolengthelement. so I used the rotSpring2D.tcl. In two cases, I got a different eigen values... Is it right? or I have some modeling errors ? _________________________________ case 1) M-rotation relation : bilinear set f...

:D Is this early in the morning? before 7:00... Thank you very much... One more question... Below the board, someone asked about fractors for simulation of hardening, stiffness degradation. So you answered to ask to Professor... Until don't you have other Ideas? ^^ Nowadays, I'm trying to simulate t...

Hi...
According to the User Manual, the Pinch model uses the damage model for the strength and stiffness degradation.
Whom this is originated from ? or other reference...?
Thank you.