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Proceedings Paper

Possibility of electrical discharge pulse sound for hammering test
Author(s): Yoshiaki Akematsu; Kazuro Kageyama; Naotake Mohri; Hideaki Murayama; Makoto Kanai
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Paper Abstract

In this study, it was investigated that the possibility of electrical discharge pulse sound for new inspection technologies instead of hammering test. Electrical discharge pulse sound was applied for hammering sound and sensor by using sound detection was applied for optical fiber vibration sensor. The numerical analysis result using the FEM and the experiment result along with the single pulse discharge was compared. As the result, it was estimated that the generation factor of the elastic wave was same as the current duration. These results become possible to estimate the propagation characteristic of elastic wave. Evaluation of electrical discharge sound for hammering test by using optical fiber sensor was investigated. Defect shape and scale was estimated from comparison with detected waveform by using optical fiber vibration sensor and simulated waveform. As the results, it was considered that electrical discharge sound was available for hammering test.

Paper Details

Date Published: 19 April 2007
PDF: 8 pages
Proc. SPIE 6531, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2007, 65310A (19 April 2007); doi: 10.1117/12.712481
Show Author Affiliations
Yoshiaki Akematsu, The Univ. of Tokyo (Japan)
Kazuro Kageyama, The Univ. of Tokyo (Japan)
Naotake Mohri, The Univ. of Tokyo (Japan)
Hideaki Murayama, The Univ. of Tokyo (Japan)
Makoto Kanai, The Univ. of Tokyo (Japan)


Published in SPIE Proceedings Vol. 6531:
Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2007
H. Felix Wu; Aaron A. Diaz; Peter J. Shull, Editor(s)

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