傾斜機能材料平板におけるラム波伝播とその衝撃応答 : 第二報,計算結果

概要

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The numerical mathods present in the previous paper for the wave propagation analysis of anisotropic functionally gradient material (FGM) plates are applicated to a SiC-C plate, which is a kind of functionally gradient material plate. The frequency spectum, energy velocities, and the mode shapes of the Lamb waves in the SiC-C plate are obtained. The transient responses of the SiC-C plate excited by time-step impact loads time-pulse ones are computed. The results obtained for the SiC-C plate and for an isotropic homogeneous C monolith plate are compared. It is found that the displacements are much more concentrated on the softer surface of the SiC-C plate than on the surfaces of the homogeneous C monolith plate, and that the displacement responses cooresponding to the surface waves of the SiC-C plate are larger than those of the C monolith plate.
一般社団法人日本機械学会の論文
1991-03-25