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Drucker Prager Plasticity model

Hi All,

I am trying to code the Drucker prager plasticity model for the 2D plane strain case using consistent tangent modulus. I am using C++, therefore I would appreciate if anyone could share relevant materials which I could use and preferrably for the 2D case so it is not unnecessarily complicated.

 

crack propagation in Abaqus (VCCT) with remeshing

I started using VCCT with quarter tip elements in Abaqus (not XFEM). I can solve the problem and get the SIFs.
How can I let the crack grow? Has someone a script for crack growth and remeshing that I can implement?

Abaqus 2d contact model not working

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Hi

 

Sorry in advance, but this will be a long story...
Thank you for taking the time to look at it! :)

 

I have a 2D model that worked fine until a couple of
days ago where I tried changing the mesh a bit. Now when I try to run it aborts
calculation and gives some of the following errors:

 

- There are 14 unconnected regions in the model.

crack propagation using XFEM

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hi everyone my name is sarah

i am new to abaqus.i wonder if anyone can help me. i made a crack propagation model in 2D.unfortunately the crack wasn`t propagated. Only there was a separation between the two surfaces where the crack line is in between. How can i make the crack tip propagates through the line drawn?

thanks

Elasto-Plastic Analysis of metal component with Cyclic Loading

Hi,

 

I am pursuing my master's in Mech. Engg. and working on Abaqus for FEA of components. In one of the analysis, 

I am required to apply cyclic loading on the component to determine the Stresses at the edges. Its a compression

cyclic loading with kinematic hardening taken into account. From the documentation for ABAQUS 6.9.1, I found that

in order to apply kinematic hardening in metals, one must take it as Combined (Isotropic + Kinematic) Hardening.

 

The two concerns I have about this analysis are:

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