淡江大學機構典藏:Item 987654321/46057
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    Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/46057


    Title: Transient analysis of a mode-III crack propagating in a piezoelectric medium
    Authors: Ing, Yi-Shyong;Wang, Mau-Jung
    Contributors: 淡江大學航空太空工程學系
    Keywords: Boundary conditions;Crack propagation;Elasticity;Fracture mechanics;Laplace transforms;Loads (forces);Stress analysis;Stress intensity factors;Surface waves;Dynamic fractures;Electric displacement intensity factors;Energy release rates;Piezoelectric materials
    Date: 2004-11
    Issue Date: 2013-03-20 16:25:26 (UTC+8)
    Publisher: Kidlington: Pergamon
    Abstract: The transient response of a semi-infinite, propagating crack subjected to dynamic anti-plane concentrated loading in a piezoelectric medium is investigated. A new fundamental solution for the piezoelectric material is proposed and the transient response of the propagating crack is determined by superposition of the fundamental solution in the Laplace transform domain. Exact analytical transient solutions for the dynamic stress intensity factor, the dynamic electric displacement intensity factor, and the dynamic energy release rate are obtained by using the Cagniard method of Laplace inversion and are expressed in explicit forms. The results indicate that the dynamic intensities of a propagating crack can be represented by the product of a universal function and the corresponding solution for a stationary crack. It is also found that the dynamic stress intensity factor and the dynamic energy release rate go to zero as the propagating speed approaches the Bleustein–Gulyaev piezoelectric surface wave speed under this particular boundary condition.
    Relation: International Journal of Solids and Structures 41(22-23), pp.6197-6214
    DOI: 10.1016/j.ijsolstr.2004.05.019
    Appears in Collections:[Graduate Institute & Department of Aerospace Engineering] Journal Article

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