I have problems to running data of damage parameter (dt) coming from formula of Birtel article (2006 ABAQUS Users’ Conference )[1].
But, with formula below ABAQUS running very well and, i take result in figure attached.
- dt = 1-exp(-strain inelastic * ac) ....... Bashar [2]
or
- dt = 1 - tension / fcm ........................ Jankowiak [3]
Someone can tell me how can i make data made with Birtel formula running in ABAQUS?
[1] http://www.simulia.com/forms/world/pdf2006/Birtel.pdf
[2] http://www.eaee.org/Media/Default/2ECCES/2ecces_eaee/991.pdf
[3] Identification of parameter of Concrete Damaged Plasticity Model
Leide Manuel Santos Soares
Mehdi i used that formula too and i get similar result as posted. Birtel formula decrease plastic very mutch, it is a reason that i want try Birtel formula (plastic strain is 10 times less than formula that you posted, [3](in my post))
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