Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5018295 | Journal of the Mechanics and Physics of Solids | 2017 | 40 Pages |
Abstract
This paper proposes a fracture mechanics model for the analysis of crack propagation in periodic honeycomb materials. The model is based on gradient-elasticity which enables us to account for the effect of the material structure at the macroscopic scale. For simulating the propagation of cracks along an arbitrary path, the numerical implementation is elaborated based on an extended finite element method with the required level of continuity. The two main features captured by the model are directionality and size effect. The numerical predictions are consistent with experimental results on honeycomb materials but also with results reported in the literature for microstructurally short cracks in metals.
Related Topics
Physical Sciences and Engineering
Engineering
Mechanical Engineering
Authors
Julien Réthoré, Thi Bach Tuyet Dang, Christine Kaltenbrunner,