Numerical prediction of the mechanical properties of anisotropic composite materials

摘要: Abstract A numerical method is presented to predict the mechanical properties of composite materials with anisotropic constituents and used a Fiber-Reinforced Composite (FRC). The FRC treated as an anistotropic but homogeneous continuum elastic constants are determined using Energy Equivalence method. strain energy (or complementary energy) composite, calculated analytically equated summation energies energies) components (i.e. fiber matrix) by finite element analysis. Comparison made previous techniques determine longitudinal, transverse moduli Poisson's ratios for isotropic transversely fibers in matrices. also applicable any nonlinear stress-strain relationship.