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表面局部开裂圆柱夹塞物对SH型导波的散射 被引量：1

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摘要 建立了平板波导中表面局部开裂圆柱夹塞物对SH型导波散射问题的解 .用两个垂直于波导表面的虚拟平面将波导分割为 3个区域 .在包含夹塞物的中间区域 ,将波场展开为柱面波模式和Chebyshev多项式的叠加 ;在不含夹塞物的其余两个区域 ,将波场展开为导波模式的叠加 .根据波导表面上应力自由的边界条件及虚拟平面上应力和位移连续的边界条件得到了待求解问题的基础方程组 .利用模式匹配技术构造数值计算所需的矩阵方程 ,从而得到反射及透射系数随圆柱体归一化半径和脱黏区域大小变化的关系曲线 .对圆柱表面完好黏结和脱黏区段不同大小的情况作了对比 。
作者 王小民 应崇福
机构地区 中国科学院声学研究所
出处 《中国科学（A辑）》 CSCD 2000年第9期856-864,共9页 Science in China(Series A)
基金 国家自然科学基金资助项目!(批准号:19774065)
关键词 散射 弹性波 圆柱夹塞物 SH型导波 复合材料
分类号 O422 [理学—声学]
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参考文献10

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同被引文献11

  • 1Nazaret Dermendjian,Vincent W.Lee,梁建文.Anti-plane deformations around arbitrary-shaped canyons on a wedge-shape half-space:moment method solutions[J].Earthquake Engineering and Engineering Vibration,2003,2(2):281-287. 被引量：19
  • 2Yuan X, Liao Z P. Scattering of plane SH waves by a cylindrical alluvial of circular-arc cross-section [ J ]. Earthquake Engineering and Structural Dynamics, 1995,24 : 303 - 1313.
  • 3Baron C,Shuvalov A L,Poncelet O. Impact of localized inhomogeneity on the surface-wave velocity and bulk-wave reflection in solids, Ultrasonics,2007,46 : 1 - 12.
  • 4Sanchez Sesma F J, Herrera I, Aviles J. A boundary method for elastics wave diffraction application to scattering of SH waves by surface irregularities [ J ]. Bull Seism Soc Am, 1982, 72 (2) : 473 -90.
  • 5Datta S K, Achenbach J D, Rajapakse Y S, et al. Elastic Waves and Ultrasonic Nondestructive Evaluation [ M]. North Holland : Elsevier Science Publishers, 1990,437 - 440.
  • 6Sinclair A N, Anddison R C. Acoustic diffraction spectrum of a SiC fiber in a solid elastic medium[J]. J Acoust Soc Am, 1993, 94(2) : 1126 - 1135.
  • 7Hayir, I. Bakirtas, Scattering of SH waves by cavities of arbitrary shape in a waveguide[ C]. 13th ASCE EMD,Baltimore, MD, 1999.
  • 8McHale G,Newton M I, Martin F. Layer guided shear horizontally polarized acoustic plate modes [ J ]. J. Appl. Phys, 2002,91:5735 - 5744.
  • 9Alshits V I,Deschamps M,Lyubimov V N. Dispersion anomalies of shear horizontal guided waves in two- and three-layered plates[J]. J. Acoust. Soc. Am,2005,118:2850-2859.
  • 10Lu Y. Guided anti-plane shear wave propagation in layers reinforced by periodically spaced cylinders. J Acoust Soc Am, 1996, 99(4) : 1937 - 1943.

引证文献1

二级引证文献4

中国科学（A辑）
2000年 第9期

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