Help!! How to build the model of FRP?

[andy0071]

I wander to build the material model of FRP, but the material of FRP is not as same as steel which could keep the stress after the elastic transformation into plasticity. the FRP material will break and quit after it reach the ultimate load, so the curve will come down after the elastic transformation but not go horizontal.
That means could not use the "uniaxialMaterial ElasticPP" to model the FRP written as"uniaxialMaterial ElasticPP $IDfrp $Ef $ef 0"
BUt how to simulate the FRP's break after it reaches the ultimate load in OpenSees with basic material and Parallel material ??

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[andy0071]

11

[of84]

Thanks, I was after the same answer! I'm impressed you answered your own question though! It's always the way!

Thanks again!

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[azim_gholinezhad]

dear andy0071,
I have the same problem. If you have the example script for FRP modeling could you please mail it to me.
I want to investigate the FRP thickness and number of layers and I can't find it in "confinedconcrete01"
Thank you in advance,

[mlagiou]

Deae andy0071

I was also trying to find out what to do about it!Thanks a lot!Still having problems with ConfinedConcrete01 material for concrete confinement!
Thanks again

[mattroidena1]

Dear andy0071,
I have some troubles in my research like what you have here. I wonder that could I have your tcl file for this problem ?
If it's ok, could you send to me through email :ductuandhxd@gmail.com
I will deeply appreciate it. Thank you in advance!

[rywuandrew]

Hi Friends,

Did you solve this problem? I have the same problem with you now. If possible, I hope you can tell me how did you make it. Thank you so much. I really appreciated your help. My email rywuandrew@gmail.com

Andrew

[rywuandrew]

azim_gholinezhad wrote:
> dear andy0071,
> I have the same problem. If you have the example script for FRP modeling
> could you please mail it to me.
> I want to investigate the FRP thickness and number of layers and I can't
> find it in "confinedconcrete01"
> Thank you in advance,

I also want to investigate the FRP thickness and number of layer, did you solve it? If so, can you offer me some help? Thank you so much for your help.
Andrew. My email is rywuandrew@gmail.com