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Probability of Debonding and Effective Elastic Properties of Particle-Reinforced Composites

Published online by Cambridge University Press:  24 January 2017

L. C. Bian ,
W. Liu  and
J. Pan
L. C. Bian*
Affiliation:
Key Laboratory of Mechanical Reliability for Heavy Equipments and Large Structures of Hebei ProvinceYanshan UniversityQinhuangdao, China
W. Liu
Affiliation:
Key Laboratory of Mechanical Reliability for Heavy Equipments and Large Structures of Hebei ProvinceYanshan UniversityQinhuangdao, China
J. Pan
Affiliation:
Key Laboratory of Mechanical Reliability for Heavy Equipments and Large Structures of Hebei ProvinceYanshan UniversityQinhuangdao, China
*
*Corresponding author (lcbian@ysu.edu.cn)
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Abstract

In this paper, the effective properties of particle-reinforced composites with a weakened interphase are investigated. The particle and interphase are regarded as an equivalent-inclusion, and the interphase zone around the particle is modeled as a linear elastic spring layer. A modified micro-mechanics model is proposed to obtain the effective elastic modulus. Moreover, a statistical debonding criterion is proposed to characterize the varying probability of the evolution of interphase debonding. Numerical examples are considered to illustrate the effect of imperfect interphases on the effective properties of particle-reinforced composites. It is found that the effective elastic properties obtained in the present work are in a good agreement with the existing data from the literatures.

Keywords

Particle compositesEquivalent inclusionElastic modulusInterphase
Type
Research Article
Information
Journal of Mechanics , Volume 33 , Issue 6 , December 2017 , pp. 789 - 796
Copyright
Copyright © The Society of Theoretical and Applied Mechanics 2017 

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