| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1500231 | Scripta Materialia | 2011 | 4 Pages |
Abstract
Tomography examination of arrested cracks at crack initiation, flat to slant transition and slant propagation indicates a clear change in micromechanisms from high-stress triaxiality void growth to shear-dominated coalescence in the slant regime. A Gurson-type model is used and a shear void nucleation term based on the Lode parameter for strain rate is suggested for simulation of a fully meshed sample, which achieves flat to slant crack transition at loads close to experimental results for aluminium.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
T.F. Morgeneyer, J. Besson,