International Journal of Automotive Technology

The Korean Society of Automotive Engineers (한국자동차공학회)
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ULTRASONIC DETECTION OF INTERFACE CRACK IN ADHESIVELY BONDED DCB JOINTS

  • Chung, N.-Y. (Department of Mechanical Engineering, Soongsil University) ;
  • Park, S.-I. (Department of Mechanical Engineering, Soongsil University) ;
  • Lee, M.-D. (Department of Mechanical Design Engineering, Dong Seoul College) ;
  • Park, C.-H. (Hyundai mechanical Institute)
  • Published : 2002.12.01
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Abstract

It is well recognized that the ultrasonic method is one of the most common and reliable nondestructive testing (NDT) methods for the quantitative estimation of defects in welded structures. However, NDT techniques applying for adhesively bonded joints have not been clearly established yet. In this paper, the detection of interface crack by the ultrasonic method was applied for the measurement of interfacial crack length in the adhesively bonded joints of double-cantilever beam (DCB). An optimal condition of transmission coefficients and experimental accuracy by the ultrasonic method in the adhesively bonded joints have been investigated and discussed. The experimental values are in good agreement with the computed results by boundary element method (BEM) and Ripling's equation.

Keywords

References

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