Evaluation of dynamic mechanical properties of unidirectional composites in relation to their morphology

We were interested in the dynamic mechanical behavior of unidirectional composites from E-glass fibers and an epoxy matrix with several glass fiber contents ranging from 43% to 68%. A method is proposed for the determination of the viscoelastic response of such reinforced material, based on successive applications of the three-phase self-consistent analysis proposed by Christensen and Lo. When we apply this model in consecutive steps, we can take into account some morphological features including nonuniform arrangement of the fibers in the transverse plane with clustering or connecting arrangements as well as particular strengthening effects of the polymer in the interphase.

[1]  P. Mele,et al.  Viscoelasticity of polymers filled by rigid or soft particles: Theory and experiment , 1996 .

[2]  F. Maurer,et al.  Micromechanical transitions in compatibilized polymer blends , 1996 .

[3]  A. Bergeret,et al.  A study of the interphase in styrene-methacrylic acid copolymer/glass bead composites , 1996 .

[4]  A. Zaoui,et al.  Elastic behaviour of multiply coated fibre-reinforced composites , 1995 .

[5]  A. Bergeret,et al.  Physical modeling of the interphase in amorphous thermoplastic/glass bead composites , 1994 .

[6]  A. R. Greus,et al.  On the dynamic mechanical behavior of poly(ethyl methacrylate) reinforced with kevlar fibers , 1991 .

[7]  J. Schultz,et al.  Stress transfer in single-fibre composites: effect of adhesion, elastic modulus of fibre and matrix, and polymer chain mobility , 1989 .

[8]  J. Gérard.  Characterization and role of an elastomeric interphase on carbon fibers reinforcing an epoxy matrix , 1988 .

[9]  J. Cavaillé,et al.  Dynamic mechanical behaviour and its dependence on preparation method of structural epoxide resin , 1987 .

[10]  M. Vallance,et al.  Viscoelastic response of unidirectionally reinforced thermoplastic composites to off axis deformation , 1987 .

[11]  M. Y. Boluk,et al.  Interfacial interactions and the properties of filled polymers: I. Dynamic‐mechanical responses , 1986 .

[12]  P. Theocaris.  Phase transformation, at the boundary layers between polymers, and solid surfaces , 1985 .

[13]  Z. Hashin.  Analysis of Composite Materials—A Survey , 1983 .

[14]  R. Christensen,et al.  Solutions for effective shear properties in three phase sphere and cylinder models , 1979 .

[15]  E. Kröner.  Bounds for effective elastic moduli of disordered materials , 1977 .

[16]  P. H. Dederichs,et al.  Variational treatment of the elastic constants of disordered materials , 1973 .

[17]  S. Shtrikman,et al.  A variational approach to the theory of the elastic behaviour of multiphase materials , 1963 .

[18]  Zvi Hashin,et al.  The Elastic Moduli of Heterogeneous Materials , 1962 .

[19]  E. H. Kerner.  The Elastic and Thermo-elastic Properties of Composite Media , 1956 .

[20]  André Zaoui,et al.  n-Layered inclusion-based micromechanical modelling , 1993 .

[21]  L. Drzal,et al.  Glass fiber 'sizings' and their role in fiber-matrix adhesion , 1991 .

[22]  R. Christensen,et al.  Theory of Viscoelasticity , 1971 .