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    题名: Two-dimensional transient analysis of wave propagation in functionally graded piezoelectric slabs using the transform method
    作者: Yi-Hsien Lin;Yi-Shyong Ing;Chien-Ching Ma
    关键词: FGPM;Stress waves;Durbin method;Numerical Laplace inversion;Transient response
    日期: 2015-01-01
    上传时间: 2015-02-05 15:11:25 (UTC+8)
    摘要: In this study, the transient responses of a functionally graded piezoelectric slab were analyzed using the transform technique. The slab was subjected to a dynamic anti-plane concentrated force and an in-plane point electric displacement on the top surface, and the bottom surface was assumed to be open-circuit or grounded. The analytical solutions were obtained in the Laplace transform domain, and a numerical inversion was performed using the Durbin method. The numerical results showed that an applied point electric displacement may instantaneously induce shear stress waves due to the piezoelectricity for both open-circuit and grounded cases. When the bottom surface was grounded, a visible electric wave was induced by the grounded boundary and the influence of this wave was significant when the gradient coefficient of the functionally graded piezoelectric materials (FGPMs) was large enough.
    關聯: International Journal of Solids and Structures 52, pp.72-82
    DOI: 10.1016/j.ijsolstr.2014.09.021
    显示于类别:[航空太空工程學系暨研究所] 期刊論文

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