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Thank you!

as the topic.

how can I simulate the FRP material if i have to consider its rupture when reach its ultimate strength.

i suggest you contact Prof. Filippou of UC Berkeley. Or at least look at the materials he has on his website., for example http://ce.berkeley.edu/~filippou/Research/Fedeas/material.htm Thank you very much,fmk.I have downloaded the OpenSees code,I think I can get what I want from the steel02.cpp fil...

my research need to develope a new material model in the base of steel02 .would anybody give me some advice ?

Thank you very much for your reply ,pejman !I will follow your advice and take action .And if I have any question ,i will seek for your advice and help .best wishes .

thank you!It is very useful.

zhenxinli1999 wrote:how to build complex fiber section for the long span steel bridge? i.e. complex box section

Thank you!

can you give more detail about you model?

If you study EERC report written by taucer & spacone and filippou, you will undrestand that 5 integration points are quite enough for capturing any distributed inelasticity and more thatn this is redundant. I think there is a controler in source code in which using more than certain amount of i...

I was studying steel02 model and trying to find the exact reference.
I appreciate for your help in advance.

We know that there is a Elastic-No Tension Material in the OS.
but how can I construct a Elastic-No compresion Material in the OS?
can I use the Elastic-No Tension Material and give a negitive value to the variable $E?

I developed a new concrete model for OpenSees based on Chang and Mander's 1994 concrete model. I gave the model out to some people at the NEES Annual Meeting, and it will be in the next release of OpenSees. If you are using this model please post in here or send me a PM with your name and email so ...

I really appreciate if someone tell me that the difference between nonlinearBeamColumn element and dispBeamColumn element.I have done analysis of a 2d frame with these two element respectively under same condition ,but the results are quite different.

silvia wrote:i don't have it.
you might want to check with the eerc library or ncree directyl.

,thank you,I will check it up.

hello,silvia I am reading the manual of OS, in the chapter 11 I found a reference--- " Chang, G. and Mander, J. (1994). “Seismic Energy Based Fatigue Damage Analysis of Bridge Columns: Part I – Evaluation of Seismic Capacity.” NCEER Technical Report 94-0006." I think it would be a useful r...