What is it about?

In this study, two different SHM method were used to evaluate the strength of composite bonds by using two separate experimental setups. First, heterodyne effect method was used for exploration of the possible separation at the composite joint. Secondly, the surface response to excitation (SuRE) method was used when the bond had various simulated contamination levels.

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Why is it important?

The study compared the nonlinear and linear approaches for SHM applications. Researchers may develop many new applications by using the heterodyne effect and surface response to excitation method.


Heterodyne effect hasn't been used in the SHM applications widely although very powerful new methods can be developed by using this approach. Similarly, electromechanical impedance method was used very widely but almost no researchers outside of my group has used our surface response to excitation (SuRE) method. SuRE method requires less expensive experimental setup, more sensitive and extremely flexible when it is compared to electromechanical impedance method.

Ibrahim Tansel
Florida International University

Read the Original

This page is a summary of: Composites Bond Inspection Using Heterodyne Effect and SuRE Methods, Shock and Vibration, July 2018, Hindawi Publishing Corporation,
DOI: 10.1155/2018/1361932.
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