Analysis of Crack-Tip Field of Particulate-Reinforced Composites Taking Account of Particle Size Effect and Debonding Damage
| Periodical | Key Engineering Materials (Volumes 452 - 453) |
|---|---|
| Main Theme | Advances in Fracture and Damage Mechanics IX |
| Edited by | A. Saimoto and M.H. Aliabadi |
| Pages | 625-628 |
| DOI | 10.4028/www.scientific.net/KEM.452-453.625 |
| Citation | Tomoyuki Fujii et al., 2010, Key Engineering Materials, 452-453, 625 |
| Online since | November, 2010 |
| Authors | Tomoyuki Fujii, Keiichiro Tohgo, Yu Itoh, Daisuke Kato, Yoshinobu Shimamura |
| Keywords | Crack-Tip Field, Debonding Damage, Finite Element Analysis (FEA), Incremental Damage Theory, Micro-Mechanics, Particulate-Reinforced Composites, Size Effect |
| Price | US$ 28,- |
This paper deals with an analysis of a crack-tip field of particulate-reinforced composites which can describe the evolution of debonding damage, matrix plasticity and particle size effect on deformation and damage. Numerical analyses were carried out on a crack-tip field in elastic-plastic matrix composites reinforced with elastic particles by using a finite element method developed based on an incremental damage theory. The particle size effect on damage is described by a critical energy criterion for particle-matrix interfacial debonding. The effect of debonding damage on a crack-tip field is discussed based on numerical results. The debonding damage initiates and progresses ahead of a crack-tip. The stress distribution shifts downward in the debonding damage area. It is concluded that a crack-tip field is strongly affected by debonding damage.