I.Ya.Zhbadyns'ky, V.V.Mihas'kiv, O.I.Stepanyuk A problem of stationary deformation of 3D piecewise-homogeneous body with complanar cracks |
Acoustic bulletin, Vol. 6 ¹ 4, (2003) |
| A symmetrical problem of interaction of the plane cracks loaded by time harmonic stresses and disposed laterally on one side of the interface of the perfectly connected elastic semispaces is solved by the method of boundary integral equations. Numerical results for the case of a three-dimensional wave field conditioned by interaction of the intermaterial surface and two circular cracks undergoing action of the inner harmonic pressure having a constant amplitude are presented. At various ratios between the mechanical constants of the body components ensuring the absence of the near-surface waves (the Stoneley function's zeros), the distributions of the intensity stress coefficients along the defect outlines are presented for regions of the low-frequency and resonant wave numbers. |
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KEY WORDS: method of boundary integral equations, plane crack, the Stoneley function, defect outlines, interaction of the defects |
| TEXT LANGUAGE: Ukrainian |