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Materials 2017, 10(8), 911; doi:10.3390/ma10080911

Influence of Partially Debonded Interface on Elasticity of Syntactic Foam: A Numerical Study

1
Department of Materials Science and Engineering, Pusan National University, Busandaehak-ro 63beon-gil 2, Busan 46241, Korea
2
Korea Institute of Industrial Technology (KITECH), Namyangsan 1-gil 14, Yangsan 50635, Korea
*
Author to whom correspondence should be addressed.
Received: 26 June 2017 / Revised: 2 August 2017 / Accepted: 3 August 2017 / Published: 8 August 2017
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Abstract

The effect of interfacial bonding of glass hollow microspheres and a polymer matrix on the elastic properties of syntactic foam was investigated using representative volume element (RVE) models, including partially debonded interfaces. Finite element analysis, with models having different debonding geometries, was performed to numerically estimate the elastic behavior of the models. The models consisted of bonded and debonded regions of interfaces; the bonded region was treated as the perfectly bonded interface, while the Coulomb friction model was used to describe the debonded region with a small friction coefficient. The changes in the tensile and compressive moduli of the foams were investigated in terms of the degree of interfacial debonding and debonding geometry. View Full-Text
Keywords: syntactic foam; effective properties; computational materials science; interface; finite element method; micromechanics syntactic foam; effective properties; computational materials science; interface; finite element method; micromechanics
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MDPI and ACS Style

Cho, Y.J.; Kang, Y.; Lee, Y.C.; Park, Y.; Lee, W. Influence of Partially Debonded Interface on Elasticity of Syntactic Foam: A Numerical Study. Materials 2017, 10, 911.

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