Two-Scale Analysis for the Mechanical Properties of Nano-Composites with Non-Linear Interface

Abstract:

Combining the cohesive zone elements into the two-scale homogenization method, the effective mechanical properties of nano-composites with a non-linear interface are analyzed. A periodic microscopic representative volume element (RVE) is modeled using a four-phase composite composed of matrix, nano-tube, bonded, and debonded interfaces. The debonded interface is simultaneously considered as bilinear plastic material satisfying the von Mises conditions in the presented algorithm, and a simple elastic–plastic constitutive model is established to study the non-linear effective elastic properties of nano-composites and equivalent stress for interface and nano-tube. The predicted results show a strong non-linear dependence of the effective mechanical properties on the interfacial modulus and yield stress.

• Periodical: Advanced Materials Research (Volumes 168-170)
• Pages: 2498-2502
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.168-170.2498
• Online since: December 2010
• Authors: Dong Mei Luo, Ying Long Zhou, Hong Yang, Li Fen Li
• Keywords: Homogenization Method, Mechanical Property, Nanocomposite, Non-Linear Interface

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