Micromechanical analysis of fiber-reinforced composites on account of influence of fiber coatings

被引：25
|
作者：
Andrianov, I. V. [2 ]
Danishevs'kyy, V. V. [3 ]
Kalamkarov, A. L. [1 ]
机构：
[1] Dalhousie Univ, Dept Mech Engn, Halifax, NS B3J 2X4, Canada
[2] Rhein Westfal TH Aachen, Inst Gen Mech, D-52062 Aachen, Germany
[3] Prydniprovska State Acad Civil Engn & Architectur, UA-49600 Dnepropetrovsk, Ukraine
来源：
COMPOSITES PART B-ENGINEERING | 2008年 / 39卷 / 05期
基金：
加拿大自然科学与工程研究理事会;
关键词：
fibre/matrix bond; interface/interphase; micro-mechanics; asymptotic homogenization;
D O I：
10.1016/j.compositesb.2007.10.002
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The new asymptotic method for the analysis of inhomogeneous composite materials on account of the micromechanical influence of fiber coatings is proposed in the present paper. The problem of longitudinal shear of the fiber-reinforced composites with the square and hexagonal lattices of periodically distributed parallel cylindrical fibers is examined. The asymptotic homogenization method is applied and the relevant unit cell problem is solved with the aid of the method of perturbation of boundary shape. The asymptotic analytical solutions are found for the effective longitudinal shear moduli and for the local stresses occurring in the composites on the microlevel. Local shear stresses along the fiber-coating and the matrix-coating interfaces are calculated. The influence of properties of coatings on the maximum local shear stresses on the interfaces of constituents is analysed. The obtained results are suitable for any values of stiffness and volume fractions of constituents, including the limiting case of absolutely rigid fibers converging to contact. (c) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码：874 / 881
页数：8
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