Micromechanical enhancement of the macroscopic strain state for advanced composite materials

A computationally efficient method for determining the microscopic strain field within the separate phases of heterogeneous medium consisting of collimated, continuous fibers within an isotropic matrix is presented with the goal of providing one of the essential links in a multi-scale analysis of a composite structure which relates structural loading and deformations at the macro-scale to the state of strain within the fiber and matrix phases at the micro scale. The model utilizes a conventional influence function formulation and considers thermo-mechanical deformations.