403 積層型複合材料の動的特性に及ぼす界面摩擦の影響(GS-11 複合材料(1))

概要

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Complicated structure of reinforcing textiles makes the boundary interaction in fiber/fiber and fiber/matrix interface, acting as the attenuating force in a deformation. In this study, an influence of the interlaminar friction on the loss tangent is investigated in a cyclic deformation. Assuming the normal stress applied for the interlaminar is the deformation on a thickness, the loss tangent is obtained as Eq.(1). [numerical formula] (E_M, E_f : Young modulus of matrix and fiber, V_f : fiber containing rate, ω : angular velocity as frequency, τ_2 = η_m / E_m, η_m : coefficient of viscosity of matrix, λ_m : Poisson rate of matrix, α, β: parameter for meaning interface adhesion [1], n: number of glass cloth layer μ: coefficient of interlaminar friction) This study aims at the deciding the coefficient of interlaminar friction from the frequency response of the loss tangent by Eq.(1). As a result, the interlaminar friction converging to μ= 1.2 is calculated for all frequency response.
一般社団法人日本機械学会の論文
2000-03-16