Abstract
Debonding of particle/matrix interfaces can significantly affect the macroscopic behavior of composite materials. We have used a nonlinear cohesive law for particle/matrix interfaces to study the effect of interface debonding on the macroscopic behavior of particle-reinforced composite materials subject to uniaxial tension. The Mori-Tanaka method, which is suitable for composites with high particle volume fraction, is extended to account for interface debonding. At a fixed particle volume fraction, small particles lead to the hardening behavior of the composite while large particles yield softening. The interface sliding may contribute significantly to the macroscopic behavior of the composite.
Original language | English (US) |
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Pages (from-to) | 139-148 |
Number of pages | 10 |
Journal | International Journal of Fracture |
Volume | 146 |
Issue number | 3 |
DOIs | |
State | Published - Aug 2007 |
Funding
Acknowledgements This research was supported by the U.S. Department of Energy and the U.S. Department of Defense/ Office of Land Warfare & Munitions under the Joint DoD/DOE Munitions Technology Development Program, ONR Composites for Marine Structures Program (grants N00014-01-1-0205, Program Manager Dr. Y. D. S. Rajapakse), and the Midwest Structural Sciences Center (MSSC) supported by the U.S. Air Force Research Laboratory Air Vehicles Directorate under contract number FA8650-06-2-3620.
Keywords
- Cohesive law
- Composites
- Interface debonding
- Mori-Tanaka method
- Size effect
ASJC Scopus subject areas
- Computational Mechanics
- Modeling and Simulation
- Mechanics of Materials