K-0610 傾斜不均質半無限体のSH衝撃解析(S05-3 複合材料システムの弾性数理モデリング(3))(S05 複合材料システムの弾性数理モデリング)

概要

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In case of homogeneous isotropic half-space, the plane strain problem which a normal load is applied as the step function for the time on the surface is known as "Lamb's problem". To solve this problem H. Lamb performed the inverse transforms of the stress solution given as the Fourier and Laplace double transform by using the Cagniard method and deduced a closed form solution. Even if the material is inhomogeneous, the closed solution is "obtained if the governing differential equation can be transformed by carrying out an appropriate coordinate transformation to be able to apply the Cagniard method. Here, as a comparatively easy impact problem the stress field for the case of generating SH elastic wave in a linear gradient inhomogeneous half-space is analyzed using the Cagniard method, and the inhomogeneous properties of this material subjected to the impulsive load are examined.
一般社団法人日本機械学会の論文
2001-08-22