Crack Modelling , mesh

[Amine A]

Hi,
I modeled a circular crack in a parallelepiped how I know that my mesh is good in a fracture model, I could not understand the curves of the stress intensity factors and the integral j as a function of l 'curvilinear abscissa

 

[mskds545]

You've attached plots of crack tip stress intensity and J along the crack front. I'm not sure what your question is. You should try modeling some cases that you know the answer to, such as a center or edge cracked plate in plane strain under uniform tension. That will help you develop confidence in your meshing. Also, try changing your mesh (i.e., reducing the size) and changing the size of the J contours and see if that affects your answer.

-mskds545