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Int. J. Mol. Sci. 2014, 15(12), 23389-23407; doi:10.3390/ijms151223389

Homogenized Finite Element Analysis on Effective Elastoplastic Mechanical Behaviors of Composite with Imperfect Interfaces

1
School of Aeronautical Manufacturing Engineering, Nanchang Hangkong University, Nanchang 330063, China
2
Research School of Engineering, the Australian National University, Acton, ACT 2601, Australia
*
Author to whom correspondence should be addressed.
Received: 9 November 2014 / Revised: 26 November 2014 / Accepted: 3 December 2014 / Published: 16 December 2014
(This article belongs to the Special Issue Advances in Anisotropic and Smart Materials)
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Abstract

A three-dimensional (3D) representative volume element (RVE) model was developed for analyzing effective mechanical behavior of fiber-reinforced ceramic matrix composites with imperfect interfaces. In the model, the fiber is assumed to be perfectly elastic until its tensile strength, and the ceramic material is modeled by an elasto-plastic Drucker-Prager constitutive law. The RVE model is then used to study the elastic properties and the tensile strength of composites with imperfect interfaces and validated through experiments. The imperfect interfaces between the fiber and the matrix are taken into account by introducing some cohesive contact surfaces. The influences of the interface on the elastic constants and the tensile strengths are examined through these interface models. View Full-Text
Keywords: fiber-reinforced ceramic matrix composites; homogenization; interface effect; tensile strength; finite element method fiber-reinforced ceramic matrix composites; homogenization; interface effect; tensile strength; finite element method
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Jiang, W.-G.; Zhong, R.-Z.; Qin, Q.H.; Tong, Y.-G. Homogenized Finite Element Analysis on Effective Elastoplastic Mechanical Behaviors of Composite with Imperfect Interfaces. Int. J. Mol. Sci. 2014, 15, 23389-23407.

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