Dear all,
I would like to draw your attention to our recently published research on the simulation of high accuracy fracture growth:
On the use of quarter-point tetrahedral finite elements in linear elastic fracture mechanics, M. Nejati, A. Paluszny, R.W. Zimmerman, Engineering Fracture Mechanics, 2015:http://authors.elsevier.com/a/1RLCT38l3DCPF
A disk-shaped domain integral method for the computation of stress intensity factors using tetrahedral meshes, M. Nejati, A. Paluszny, R.W. Zimmerman, International Journal of Solids and Structures, 2015: http://authors.elsevier.com/a/1RNMZ4kE02SvH
These papers provide significant evidence to the reliability, efficiency and accuracy of unstructured tetrahedral meshes in fracture mechanics applications.