中国物理B ›› 1995, Vol. 4 ›› Issue (6): 428-433.doi: 10.1088/1004-423X/4/6/004

• CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES • 上一篇    下一篇

EFFECT OF INTERFACE LAYER ON LAMB WAVE PROPAGATION IN SOLID ADHESIVE JOINTS: A PERTURBATION MODEL

宁伟, 王耀俊   

  1. Laboratory of Modern Acoustics, Nanjing University, Nanjing 210093, China
  • 收稿日期:1994-08-08 出版日期:1995-06-20 发布日期:1995-06-20
  • 基金资助:
    Project supported by the Doctoral Program Foundation of Institution of Higher Education of China and hy the National Natural Science Foundation of China.

EFFECT OF INTERFACE LAYER ON LAMB WAVE PROPAGATION IN SOLID ADHESIVE JOINTS: A PERTURBATION MODEL

NING WEI (宁伟), WANG YAO-JUN (王耀俊)   

  1. Laboratory of Modern Acoustics, Nanjing University, Nanjing 210093, China
  • Received:1994-08-08 Online:1995-06-20 Published:1995-06-20
  • Supported by:
    Project supported by the Doctoral Program Foundation of Institution of Higher Education of China and hy the National Natural Science Foundation of China.

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摘要： This paper presents a perturbation model for calculating the approximate Lamb wave velocities in solid adhesive joints. The numerical computations show that the approximate values of the Lamb wave velocities are very close to the exact ones if the thickness of the interface layer is small. A comparison of the perturbation analysis with the approximate "spring" model is given. The significance of the perturbation model is discussed for the inverse deduction of the mechanical properties of the interface layer from Lamb wave measurements.

Abstract: This paper presents a perturbation model for calculating the approximate Lamb wave velocities in solid adhesive joints. The numerical computations show that the approximate values of the Lamb wave velocities are very close to the exact ones if the thickness of the interface layer is small. A comparison of the perturbation analysis with the approximate "spring" model is given. The significance of the perturbation model is discussed for the inverse deduction of the mechanical properties of the interface layer from Lamb wave measurements.

中图分类号:  (Acoustical properties)

  • 68.35.Iv
68.35.Np (Adhesion) 68.35.Gy (Mechanical properties; surface strains)