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Volume 27, Issue 1
Displaying 1-13 of 13 articles from this issue
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[in Japanese]2001 Volume 27 Issue 1 Pages 1-2
Published: January 15, 2001
Released on J-STAGE: August 11, 2009
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[in Japanese]2001 Volume 27 Issue 1 Pages 3
Published: January 15, 2001
Released on J-STAGE: August 11, 2009
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Naoki TAKANO2001 Volume 27 Issue 1 Pages 4-11
Published: January 15, 2001
Released on J-STAGE: August 11, 2009
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Satoru YAMAMOTO2001 Volume 27 Issue 1 Pages 12-16
Published: January 15, 2001
Released on J-STAGE: August 11, 2009
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Goichi BEN2001 Volume 27 Issue 1 Pages 17-22
Published: January 15, 2001
Released on J-STAGE: August 11, 2009
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Iku KOSAKA2001 Volume 27 Issue 1 Pages 23-27
Published: January 15, 2001
Released on J-STAGE: August 11, 2009
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Hiroshige KIKUKAWA2001 Volume 27 Issue 1 Pages 28-39
Published: January 15, 2001
Released on J-STAGE: August 11, 2009
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Kazuyuki KABE2001 Volume 27 Issue 1 Pages 40-48
Published: January 15, 2001
Released on J-STAGE: August 11, 2009
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Tsuyoshi OZAKI2001 Volume 27 Issue 1 Pages 49-55
Published: January 15, 2001
Released on J-STAGE: August 11, 2009
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Kazuaki NISHIYABU, Asami NAKAI, Atsushi YOKOYAMA, Hiroyuki HAMADA2001 Volume 27 Issue 1 Pages 56-64
Published: January 15, 2001
Released on J-STAGE: August 11, 2009
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Norio HIRAYAMA2001 Volume 27 Issue 1 Pages 65-70
Published: January 15, 2001
Released on J-STAGE: August 11, 2009
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Hiroshi ASAO2001 Volume 27 Issue 1 Pages 71-76
Published: January 15, 2001
Released on J-STAGE: August 11, 2009
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Shun-ichi BANDOH, Go MATSUBARA, Hiroyasu NISHIKAWA, Masaru ZAKO2001 Volume 27 Issue 1 Pages 77-84
Published: January 15, 2001
Released on J-STAGE: August 11, 2009
JOURNAL FREE ACCESSA helicopter rotor system which consists of rotor blades and a hub, is a primary structure. For the components made of composite materials, a safe-life design as well as a damage tolerant design method would be required. In this paper such a damage tolerant design method using fracture mechanics and FEM analysis is described. Some single small defects, such as a crack, void or delamination were assumed to be in a rotor hub component, then the energy release rate around thedefect was calculated by FEM analysis. The crack propagation in a glass fiber composite which is a main structural material for the rotor system was examined. The onset of a crack propagation under repeated loads was obtained. The test results were analyzed by FEM method and the critical energy release rate around the defect was calculated. Finally, the allowable crack size of the hub was determined and the usefulness of this method was demonstrated.View full abstractDownload PDF (5549K)
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