THERMOELASTOPLASTIC AND VIBRATION CHARACTERISTICS OF COMPOSITES WITH INTERPHASES | ||||
The International Conference on Applied Mechanics and Mechanical Engineering | ||||
Article 11, Volume 16, 16th International Conference on Applied Mechanics and Mechanical Engineering., May 2014, Page 1-8 PDF (209.79 K) | ||||
Document Type: Original Article | ||||
DOI: 10.21608/amme.2014.35492 | ||||
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Authors | ||||
Y. M. Shabana1; E. M. Rabeih2; E. I. Morgan1 | ||||
1Mechatronics Department, Faculty of Engineering and Materials Science, German University in Cairo, New Cairo city, Egypt. | ||||
2Mechanical Design Department, Faculty of Engineering, El-Mataria, Helwan University, P.O. Box 11718, Cairo, Egypt. | ||||
Abstract | ||||
ABSTRACT This paper addresses the problem of predicting the behaviors of a composite material, which consists of a matrix and a spherical inclusion coated by a multilayered interphase, under thermal and/or mechanical loading variations and based on the micromechanics principles. The multi-layered interphase, which in general includes different properties for each layer, is modeled by applying the multiinclusion model. The considered damage mode, which is represented by the progressive debonding of the particle from the interphase, is assumed to be controlled by a critical energy criterion and the Weibull’s distribution function. The effects of the interphase parameters such as its thickness and the properties of each layer on the effective thermomechanical properties and the vibration characteristics of composites with multi-layered interphases are presented and discussed. The natural frequencies give information about the resonance avoidance whereas mode shapes give information about observability and controllability of different structures. Therefore, the natural frequencies and mode shapes as vibration characteristics are investigated based on Euler and Timoshenko theories. | ||||
Keywords | ||||
Particulate composites; Multi-layered interphase; Micromechanics; properties; Vibration characteristics | ||||
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