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Acta Physica Sinica (Overseas Edition), 1995, Vol. 4(6): 428-433    DOI: 10.1088/1004-423X/4/6/004
CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES Prev   Next  

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)
Laboratory of Modern Acoustics, Nanjing University, Nanjing 210093, China
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.
Received:  08 August 1994      Accepted manuscript online: 
PACS:  68.35.Iv (Acoustical properties)  
  68.35.Np (Adhesion)  
  68.35.Gy (Mechanical properties; surface strains)  
Fund: Project supported by the Doctoral Program Foundation of Institution of Higher Education of China and hy the National Natural Science Foundation of China.

Cite this article: 

NING WEI (宁伟), WANG YAO-JUN (王耀俊) EFFECT OF INTERFACE LAYER ON LAMB WAVE PROPAGATION IN SOLID ADHESIVE JOINTS: A PERTURBATION MODEL 1995 Acta Physica Sinica (Overseas Edition) 4 428

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