Journal
COMPOSITE STRUCTURES
Volume 90, Issue 4, Pages 418-427Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compstruct.2009.04.025
Keywords
Micromechanical elastic model; Fiber-reinforced composites; Fiber size dependency; Representative volume element (RVE); Evolutionary interfacial debonding
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Funding
- Smart Infra-Structure Technology Center (SISTeC), Ministry of Science and Technology, Korea [NC36456, R11-2006-101-02004-0]
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An RVE-based micromechanical elastic damage model considering fiber size dependency is presented to predict the effective elastic moduli and interfacial damage evolution in fiber-reinforced composites. To assess the validity of the present model, the predictions based on the proposed micromechanical elastic model are compared with Hashin's theoretical bounds [Hashin Z. Analysis of properties of fiber composites with anisotropic constituents. J Appl Mech: Trans ASME 1979;46:543-50]. The proposed micromechanical elastic damage model is then exercised under uniaxial loading conditions to show the overall elastic damage behavior of the proposed micromechanical framework and to illustrate fiber size effect on the behavior of the composites. Moreover, comparisons between the present prediction and experimental data are made to further illustrate the capability of the proposed micromechanical framework for predicting the elastic damage behavior of fiber-reinforced composites. (C) 2009 Elsevier Ltd. All rights reserved.
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