As known that Concrete Damage Plasticity (CDP) has been widely used for numerical modeling in ABAQUS due to its feasibility to model quasi-brittle material i.e. concrete. However, there are types of concrete that shows the strain-hardening behavior under tension such as HPFRCC (High Performance of Fiber-Reinforced Cementitious Composites). The question is, what type of plasticity parameter for HPFRCC should be inputted in ABAQUS? Is it still appropriate to keep using CDP?
Hi Asdam,
From my point of view, you can still use the same model CDP since plasticity means that there is already strain-hardening in your material. It's just that your parameters will have to be changed (adaptation of parameters) in the case of HPFRCC to describe better the strain hardening.
The CDP description is given in this link. It can even be combined with viscoplastic model. So you can very well keep using CDP.
Greetings
http://www.egr.msu.edu/software/abaqus/Documentation/docs/v6.7/books/usb/default.htm?startat=pt05ch18s05abm36.html
Dear Mr. Leon Raj.
The study of HPFRCC is widely developing now to improve the performance of concrete material under tension. HPFRCC is a new class of material that offers a unique perfomence due to its strain hardening behavior under tension. Here I attach one paper related to ECC material as one of the classes of HPFRCC.
Dear Leon Raj, there is a strain hardening which is mean the ability of concrete to develop more cracks in the presence of reinforcement.
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