線形粘弾性体中の応力波の伝ぱ(第2報, 理論, 数値解析, および実験)

概要

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Decreasing characteristics of both stress and stress gradient with propagation distance at a 2-dimensional linear viscoelasticity wavefront are derived by using our 3-dimensional theoretical equation for particle velocity discontinuities. By finite-element method code DYNA3D, stress at a noncurvature dilatation wavefront of linear viscoelasticity is shown to decrease exponentially. This result is in good accordance with our theory. By dynamic photoelasticity experiment, stress gradients of urethane rubber plates at 3 types of wavefronts are shown to decrease exponentially at a noncurvature wavefront and are shown to be a decreasing function of (1/√<R>) exp (α^2_1/(2α^3_0ξ)) at a curvature wavefront. These experiment results are in good accordance with our theory.
社団法人日本機械学会の論文
1992-11-25