日本航空宇宙学会論文集
Online ISSN : 2432-3691
Print ISSN : 1344-6460
ISSN-L : 1344-6460
論文
極低温複合材タンクにおける金属部品接着構造の破壊力学的評価
竹内 伸介佐藤 英一小野田 淳次郎樋口 健荒川 陽司
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ジャーナル フリー

2008 年 56 巻 651 号 p. 169-178

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Adhesive bonding structure around a metalic mouthpiece of a cryogenic composite tank was analyzed based on fracture mechanics. Energy release rate was analytically formulated considering difference in strain energies in tension and bending between before and after the crack growth based on a simplified mathematical model. The analytical results were compared with the calculated results by finite element method for five example tanks; they revealed fairly good match. This analysis gives a guideline of the initial optimal design of a cryogenic composite tank based on fracture mechanics.

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© 2008 The Japan Society for Aeronautical and Space Sciences
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