Branching mechanism of intergranular crack propagation in three dimensions
Abstract
We investigate the process of slow intergranular crack propagation by the finite element method model and show that branching is induced by partial arresting of a crack front owing to the geometrical randomness of grain boundaries. A possible scenario for the branching instability of crack propagation in a disordered continuous medium is also discussed.
- Publication:
-
Physical Review E
- Pub Date:
- May 2005
- DOI:
- 10.1103/PhysRevE.71.055102
- arXiv:
- arXiv:cond-mat/0502382
- Bibcode:
- 2005PhRvE..71e5102I
- Keywords:
-
- 62.20.Mk;
- 81.40.Np;
- 46.50.+a;
- Fatigue brittleness fracture and cracks;
- Fatigue corrosion fatigue embrittlement cracking fracture and failure;
- Fracture mechanics fatigue and cracks;
- Condensed Matter - Disordered Systems and Neural Networks;
- Condensed Matter - Materials Science
- E-Print:
- 4 pages, submitted to Phys.Rev.E