Abstract
In this study, an elastic-viscoplastic triple-scale analysis method for plain-woven laminates is developed based on a homogenization theory. For this, triple-scale modeling of plain-woven laminates is performed by considering a plain-woven laminate as a macro structure, plain fabrics and matrix in the laminate as a meso structure, and fiber and matrix in the plain fabrics as a micro structure. Then, boundary value problems for macro/meso and meso/micro scales are derived based on the time-dependent of homogenization theory, and the relationship between these problems are discussed. It is shown that the present method is successful in taking into account the effects of viscoplasticity of a matrix in plain fabrics on the elastic-viscoplastic behavior of plain-woven GFRP laminates.
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