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Proceedings Paper

Structural health monitoring of IACC yachts using fiber optic distributed strain sensors: a technical challenge for America's Cup 2000
Author(s): Hideaki Murayama; Kazuro Kageyama; Isao Kimpara; Shimada Akiyoshi; Hiroshi Naruse
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Paper Abstract

In this study, we developed a health monitoring system using a fiber optic distributed strain sensor for International America's Cup Class (IACC) yachts. Most structural components of an IACC yacht consist of an aluminum honeycomb core sandwiched between carbon fiber reinforced plastic (CFRP) laminates. In such structures, delamination, skin/core debonding and debonding between adhered members will be result in serious fracture of the structure. We equipped two IACC yachts with fiber optic strain sensors designed to measured the distributed strain using a Brillouin optical time domain reflectometer (BOTDR) and to detect any deterioration or damage to the yacht's structures caused by such failures. And based on laboratory test results, we proposed a structural health monitoring technique for IACC yachts that involves analyzing their strain distribution. Some important information about structural conditions of the IACC yachts could be obtained from this system through the periodical strain measurements in the field.

Paper Details

Date Published: 12 June 2000
PDF: 12 pages
Proc. SPIE 3986, Smart Structures and Materials 2000: Sensory Phenomena and Measurement Instrumentation for Smart Structures and Materials, (12 June 2000); doi: 10.1117/12.388120
Show Author Affiliations
Hideaki Murayama, Univ. of Tokyo (Japan)
Kazuro Kageyama, Univ. of Tokyo (Japan)
Isao Kimpara, Univ. of Tokyo (Japan)
Shimada Akiyoshi, Nippon Telegraph and Telephone Corp. (Japan)
Hiroshi Naruse, Nippon Telegraph and Telephone Corp. (Japan)


Published in SPIE Proceedings Vol. 3986:
Smart Structures and Materials 2000: Sensory Phenomena and Measurement Instrumentation for Smart Structures and Materials
Richard O. Claus; William B. Spillman, Editor(s)

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