I have a RC beam with Concrete Damage Plasticity Model .
I want to implement XFEM taking the first crack of my RC beam as the initial crack of XFEM, or in other words I want XFEM to start in the middle of the running time of the programm using the results prior to that. To accomplish this is possible by scripting within ABAQUS /or I need to link it with Fortran /Matlab etc.
Also please mention any good links of studying scripting in ABAQUS
I think that you must use subroutine uel in standard or vuel in explicit, look this article : E. Giner, N. Sukumar, J. E. Tarancón, and F. J. Fuenmayor, "An Abaqus implementation of the extended finite element method," Engineering Fracture Mechanics, vol. 76, pp. 347-368, 2009.
to my understanding, as long as you set a notch/intial crack in the middle, the XFEM will start at there, and grow in a direction the criteria of XFEM defines.
It is easy if you go to the Abaqus Mannual for further help. Also there are many examples of XFEM in the folder of 'sample'.
The best.
You can assign "concrete damaged plasticity model" and " XFEM criteria" to the concrete material together. Before crack initiation criterion is met, the concrete behaves according to the "damaged plasticity model". When the crack initiation criterion is met, the concrete will crack and the crack will propagate according to the defined damage evolution. I think you don't need to use subroutine for that.
Xinpu ShenThank You for your answer.Pls help me as to how to access the sample folder
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