701 地下き裂を板中のスリットに模擬した場合の振動に対する板境界の影響(GS.S 構造解析)

概要

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It is examined by numerical calculation whether a finite plate with a 2D crack provides intrinsic natures of oscillation of an infinite plate, emphasizing the application to geometrical characterization of a geothermal reservoir crack. Boundary Integral Equation Method is employed for the numerical calculation. In the case of a crack with fluid, the intrinsic nature of an infinite plate oscillation appears clearly in the data of oscillation of the finite plate. The ratio of the plate half width to the crack half length (size ratio) has effects on eigen angular frequency of crack wave. In the case that the size ratio is larger than two, eigen angular frequency are same values of oscillation of an infinite plate. Radiation pattern of crack wave depends on boundary condition of a finite plate e.g., how to stimulate the oscillation.
一般社団法人日本機械学会の論文
2007-10-24