In finite Element Modelling, what material model is best for modelling steel frame and RC frame?
Basically for any structures subjected to cyclical loading , structures made of steel is always preferred than RCC.
For cyclic loading, you should use kinematic hardening model for steel part. As it take care of bauschinger effect.
http://inside.mines.edu/~apetrell/ENME442/Labs/1301_ENME442_lab7.pdf
http://innomet.ttu.ee/martin/mer0070/wb/ws11/ws5a_belleville/mech_anl_14.0_l02-adv-plasticity.pdf
TNO Diana.
For steel frame, I used von mises yield criteria with no hardening. But it do not shows perfectly plastic behavior. I have attached the pictures for the reference (the blue curve is the result from the software and the black curve (I assume) to be the expected result shape only)
Hello Fatima,
You can use loading and unloading paths of a bilinear kinematic model with strain hardening. You can read more about these material models if you search for the textbook "Plasticity for Structural Engineers" by Wai-Fah Chen, D. J. Han
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