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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Fiber pull-out ： ウィキペディア英語版 Fiber pull-out Fiber pull-out is one of the failure mechanisms in fiber-reinforced composite materials. Other forms of failure include delamination, intralaminar matrix cracking, longitudinal matrix splitting, fiber/matrix debonding, and fiber fracture.〔 The cause of fiber pull-out and delamination is weak bonding.〔Serope Kalpakjian, Steven R Schmid. "Manufacturing Engineering and Technology". International edition. 4th Ed. Prentice Hall, Inc. 2001. ISBN 0-13-017440-8〕 Work for debonding, $W\_d\; =\; \backslash frac$ 〔PWR Beaumont. "Fracture mechanisms in fibrous composites". Fracture Mechanics, Current Status, Future Prospects. Edited by RA Smith. Pergamon Press: 1979. p211-33 in 〕 where *$d$ is fiber diameter *$\backslash sigma\_f^2$ is failure strength of the fiber *$l\_d$ is the length of the debonded zone *$E\_f$ is fiber modulus thumbIn ceramic matrix composite material this mechanism is not a failure mechanism, but essential for its fracture toughness,〔V. Bheemreddy et al. "(Modeling of fiber pull-out in continuous fiber reinforced ceramic composites using finite element method and artificial neural networks )," Computational Materials Science, Vol. 79, pp.663-676, 2013.〕 which is several factors above that of conventional ceramics. The figure is an example of how a fracture surface of this material looks like. The strong fibers form bridges over the cracks before they fail at elongations around 0.7%, and thus prevent brittle rupture of the material at 0.05%, especially under thermal shock conditions.〔W. Krenkel, ed.:''Ceramic Matrix Composites'', Wiley-VCH, Weinheim, 2008, ISBN 978-3-527-31361-7〕 This allows using this type of ceramics for heat shields applied for the re-entry of space vehicles, for disk brakes and slide bearing components. == References == 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Fiber pull-out」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.