Effects of anisotropic fiber packing on stresses in composites

• Published in: Computer methods in applied mechanics and engineering Vol. 195; no. 33-36; pp. 4544 - 4556
• Main Authors: Lee, Jungki, Han, Huiduck, Mal, Ajit
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01.07.2006; Elsevier
• Subjects: Composite; Computational techniques; Exact sciences and technology; Fiber packing; Finite element method; Fundamental areas of phenomenology (including applications); Mathematical methods in physics; Mixed volume and boundary integral equation method; Physics; Solid mechanics; Static elasticity (thermoelasticity...); Structural and continuum mechanics; Voids; Volume integral equation method; Voids; Finite element method; Composite; Volume integral equation method; Mixed volume and boundary integral equation method; Fiber packing; Stress analysis; Fiber reinforced material; Boundary integral method; Modeling; Orthotropic material; Infinite medium; Isotropic medium; Cavity; Packing; Plane elasticity; Integral equation; Random medium
• ISSN: 0045-7825; 1879-2138
• DOI: 10.1016/j.cma.2005.10.012

A volume integral equation method (VIEM) is used to calculate the plane elastostatic field in an unbounded isotropic elastic medium containing multiple orthotropic cylindrical inclusions subject to remote loading. A detailed analysis of stress field at the interface between the matrix and the central orthotropic inclusion is carried out for square, hexagonal and random packing of the inclusions. The influence of a void on the interfacial stress field is analyzed using a modified form of the integral equation. The results for the random fibers are compared with those for the regular arrays. The methods are shown to be very accurate and effective for investigating the local stresses in composites containing anisotropic fibers.