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Proceedings Paper

Detection of damage location in ductile members
Author(s): Kensuke Ichinose; Kiyoshi Taniuchi; Masashi Kandatsu; Junho Song; Katsumi Fukuda
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Paper Abstract

As is well known, Lueders' lines are visible to the naked eye, and appear in carbon steel when yield point elongation occurs. Lueders' lines show that yield stress is bringing about failure in part of the structure where Lueders' lines appears. Therefore Lueders' lines may function as a visible smart sensor for failure locaation. By the use of Lueders' lines it is possible to discern with the naked eye the generation of a failure location on the member of a carbon steel strip. Observation by the naked eye was made of the failure zone corresponding to cyclic loading at a hole inserted in a structural carbon steel specimen. Investigation was undertaken of the utility of Lueders' lines for discerning clamping force at the moment of tightening a bolt. At the moment of tightening it was ascertained that no uniform axial stress was acting on the bearing surface.

Paper Details

Date Published: 24 August 2000
PDF: 8 pages
Proc. SPIE 4073, Fifth European Conference on Smart Structures and Materials, (24 August 2000); doi: 10.1117/12.396402
Show Author Affiliations
Kensuke Ichinose, Tokyo Denki Univ. (Japan)
Kiyoshi Taniuchi, Meiji Univ. (Japan)
Masashi Kandatsu, Tokyo Denki Univ. (Japan)
Junho Song, Tokyo Denki Univ. (Japan)
Katsumi Fukuda, Univ. of Tokyo (Japan)

Published in SPIE Proceedings Vol. 4073:
Fifth European Conference on Smart Structures and Materials
Pierre Francois Gobin; Clifford M. Friend, Editor(s)

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