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Proceedings Paper

Thick-sandwich-panel fabrication for bridge deck structure and its joint strength
Author(s): Akikazu Kitagawa; Naoaki Fukuda; Shinnosuke Takeda; Akira Matsunawa
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Paper Abstract

The purpose of this study is to evaluate the static strength of thick plate laser welded lap joint and the performance of thick sandwich panel for bridge deck structure. The strength of thin sheet laser welded lap joint whose thickness is less than 1.6 mm have been already reported, but the strength of thick plate laser welded lap joint whose thickness is more than 10 mm is not known. The authors believe this thick laser welded lap jont enable heavy industries to make a revolution on applying it for sandwich panel fabrication. Then, they have conducted mechanical tests of 10 mm + 6 mm thick laser welded lap joints to grasp their static strength. According to the obtained data, they fabricate a thick sandwich panel model of newly designed bridge deck structure for evaluation. The static lading test, cyclic loading test and collapsing test show that the thick sandwich panel has enough performance for the practical application.

Paper Details

Date Published: 3 March 2003
PDF: 6 pages
Proc. SPIE 4831, First International Symposium on High-Power Laser Macroprocessing, (3 March 2003); doi: 10.1117/12.497718
Show Author Affiliations
Akikazu Kitagawa, Hitachi Zosen Corp. (Japan)
Naoaki Fukuda, Hitachi Zosen Corp. (Japan)
Shinnosuke Takeda, Hitachi Zosen Corp. (Japan)
Akira Matsunawa, Osaka Univ. (Japan)

Published in SPIE Proceedings Vol. 4831:
First International Symposium on High-Power Laser Macroprocessing
Isamu Miyamoto; Kojiro F. Kobayashi; Koji Sugioka; Reinhart Poprawe; Henry Helvajian, Editor(s)

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