SCATTERING BY SHALLOW CYLINDRICAL CAVITY IN AN INHOMOGENEOUS HALF-SPACE

摘要：

The problem of the scattering of SH-waves by a shallow cylindrical cavity in inhomogeneous half-space is discussed in this paper.Methods of complex function and multi-polar coordinate system are adopted to solve the problem of dynamic stress concentration factor.Based on the conformal mapping technique,the Helmholtz equation with variable coefficients is transferred into its standard form.Besides,the form of scattering wave is also deduced and the dynamic response is calculated and discussed.Numerical results present that the dynamic stress concentration factor is mainly affected by inhomogeneous parameters and the wave number,and it is influenced by the depth of the cavity under the surface as well.

关键词： Inhomogeneous half-space Conformal mapping technique Dynamic stress concentration factor (DSCF) Shallow cylindrical cavity

作者: Yu ZHANG Zhao-qun SUN Guan-xi-xi JIANG Hai-yi TANG Zai-lin YANG

作者单位: College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, China Beijing Institute of Electronic System Engineering, Beijing 100854, China

会议类型: 国际会议

会议名称: The 2016 Symposium on Piezoelectricity,Acoustic Waves and Device Applications(2016全国压电和声波理论及器件技术研讨会)

会议地点: 西安

会议语种:英文

页码: 371-375

在线出版日期: 2016-10-21（万方平台首次上网日期，不代表论文的发表时间）