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XFEM

Hello,

As far as I understand from the previous blogs: we can now embed XFEM in ABAQUS. Is this approach restricted to linear elastic behavior? Can we simulate fracture propagation in an elasto-plastic material ("XFEM coupled with ABAQUS" type analysis) or is this approach only limited to fracture propagation in elastic materials.

 Thanks,

 Uno.

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Hello, Uno,

There should be no difficulty for plasticity with eX-FEM once you have implemented linear elastic case,

because in practice the only differences between eX-FEM and standard FEM are just shape functions and their corresponding integration technique.  

Any bulk constitutive law used in standard FEM can be used in eX-FEM.

Fushen

Sir/Madam,

I am very new in Abaqus .I need  2-D and 3-D crack modeling tutorails using Abaqus for fatigue analysis.Please help me if someone have.Please send me tutorails on dipakaaidu033@rediffmail.com.

Thank you.

WithRegards,

Dipak jha

Sir/Madam,

 What is power law exponent,Eq. stress order and time order under creep condition? I have some some vavilable data regarding this matter,that has been collected from literatures.I am mentioning here below:creep exponent is 3,1,1 and correspondingly creep prefcator is 1.39e-7,1xe-2 and 3xe-2.Anisotropic ratio is10.Parabolic growth constant is 1.5e-17m2/sec. so please tell me power exponent value,eq.stress order and time order value.This is the case of three different coating layers.

Thank you.

WithRegards,

Dipak Jha.

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