CFRP(carbon-fibre reinforced plastic) modeling

Forum for OpenSees users to post questions, comments, etc. on the use of the OpenSees interpreter, OpenSees.exe

Moderators: silvia, selimgunay, Moderators

Post Reply
zhaoning
Posts: 2
Joined: Fri Mar 23, 2007 5:44 pm
Location: China

CFRP(carbon-fibre reinforced plastic) modeling

Post by zhaoning »

Hi, everyone. During a column seismic experiment with the pseudo-static loading pattern, I use the CFRP wrapped the column, to check the improvement of the column's experiment outcome. In opensees modeling I use the nonlinear beam-column element, I am here asking how to model CFRP into the fiber section. I don't want to simulate the CFRP's effect with changing concrete material, how to add the CFRP fiber into the column section as the cover concrete? How to define CFRP material?
If someone can write down some scripts will be helpful to me. I am expecting your help.
Thank you very much.
Life is good and better.
stealth_mode
Posts: 20
Joined: Fri Dec 23, 2005 3:17 am
Location: Middle East Technical University

Post by stealth_mode »

Hi,

Sorry for my ignorance, but what do you think about the contribution of CFRP in terms of axial behavior? Will it contribute to the axial stiffness in terms of fiber elements as does the concrete and steel. I am not sure about the contribution of CFRP wrapping. If you were talking about CFRP fibers instead of longitudinal steel reinforcement, it will definitely contribute. But, wrapping the column with CFRP will only confine the RC column and will surely affect the concrete parameters.

Apart from this discussion, you can add a new element which is a hollow section having CFRP material properties at any stage.
Post Reply