TY  - EJOU
AU  - Verbis, J.T.  
AU  - Tsinopoulos, S.V.  
AU  - Polyzos, D.  

TI  - Elastic wave propagation in fiber reinforced composite materials with non-uniform distribution of fibers
T2  - Computer Modeling in Engineering \& Sciences

PY  - 2002
VL  - 3
IS  - 6
SN  - 1526-1506

AB  - In the present work the iterative effective medium approximation (IEMA) is appropriately used for wave dispersion and attenuation predictions in fiber-reinforced composites that microscopically exhibit a non-uniform fiber distribution. Two types of composites with such irregular topology of fibers are considered. The first contains a regular distribution of clusters of fibers embedded in a composite matrix with uniformly distributed fibers, and the second a uniform distribution of matrix-rich inclusions embedded in a fiber-rich regular composite medium. The resulting from the application of the IEMA scattering problems are solved numerically by means of a two dimensional boundary element method. The obtained dispersion and attenuation curves are compared to those for the corresponding fiber-reinforced composite with a uniform distribution of fibers.
KW  - Dispersion
KW  -  attenuation
KW  -  fiber composites
KW  -  BEM
KW  -  wave propagation
KW  -  homogenization

DO  - 10.3970/cmes.2002.003.803