## Abstract

The effect of damage due to particle debonding on the constitutive response of highly filled composites is investigated using two multiscale homogenization schemes: one based on a closed-form micromechanics solution, and the other on the finite element implementation of the mathematical theory of homogenization. In both cases, the particle debonding process is modeled using a bilinear cohesive law which relates cohesive tractions to displacement jumps along the particle-matrix interface. The analysis is performed in plane strain with linear kinematics. A detailed comparative assessment between the two homogenization schemes is presented, with emphasis on the effect of volume fraction, particle size and particle-to-particle interaction.

Original language | English (US) |
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Pages (from-to) | 580-595 |

Number of pages | 16 |

Journal | Mechanics of Materials |

Volume | 39 |

Issue number | 6 |

DOIs | |

State | Published - Jun 2007 |

## Keywords

- Damage mechanics
- Debonding
- Homogenization
- Micromechanics
- Microstructure
- Particle-reinforced composites

## ASJC Scopus subject areas

- Materials Science(all)
- Instrumentation
- Mechanics of Materials