点波源により異方性積層板に生じるエネルギー伝ぱ面

概要

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A numerical method is presented to determine the dispersion relation of wave propagation in an anisotropic laminated plate. A phase velocity surface, phase slowness surface, phase wave surface, group velocity surface, group slowness surface and group wave surface are defined and obtained using Reyleigh's quotient. The six characteristic surfaces can be used to illustrate the characteristics of the wave propagation in the anisotropic laminated plate due to the point wave source in it. As an example, the characteristic surfaces are obtained for graphite /epoxy angle-ply laminated plates and a hybrid composite laminated plate which consists of carbon/epoxy and glass/epoxy layers. The results for the graphite/epoxy laminated plates are compared with those obtained by the other approximated theory.
一般社団法人日本機械学会の論文
1990-02-25