DSpace university logo mark
詳細検索
Japanese | English 

NAOSITE : Nagasaki University's Academic Output SITE > 060 工学部・工学研究科 > 060 会議発表資料 >

Ductile–brittle fatigue and fracture behaviour of aluminium/PMMA bimaterial 3PB specimens


ファイル 記述 サイズフォーマット
CP'06.pdf129.57 kBAdobe PDF本文ファイル

タイトル: Ductile–brittle fatigue and fracture behaviour of aluminium/PMMA bimaterial 3PB specimens
著者: Shatil, Giora / Saimoto, Akihide / Ren, Xuejun Juan
発行日: 2008年 2月
出版者: Elsevier Ltd.
引用: Engineering Fracture Mechanics, 75(3-4), pp.674-681; 2008
抄録: Fracture toughness and fatigue crack growth tests and numerical simulations on 3PB specimens were carried out to study the behaviour of a crack lying perpendicular to the interface in a ductile/brittle bimaterial. Polymethylmethacrylate acrylic (PMMA) and aluminium alloy 2024 T531 were joined together using epoxy resin. A precrack was introduced into the ductile material and tests were carried out to obtain fracture toughness and fatigue properties. The body force method and elastic-plastic finite-element analyses were used to simulate the experimental stress intensity KI and cracking behaviour under monotonic and cyclic loads. It was found that the bimaterial fatigue crack growth rate is higher than that for monolithic aluminium 2024 but lower than the rate for a monolithic PMMA. This agreed with the trend for the fracture toughness values and was consistent with the numerical method results. The initial Mode I stable ductile cracking in the aluminium appears to 'jump' the interface and continues under mixed fracture Mode (I and II) in the PMMA material up to the final failure. A consistency between the simulation methods has indicated that the bimaterial fatigue crack growth is dominantly elastic with a small plastic zone near the crack tip.
キーワード: Aluminium 2024 / Bimaterial fracture / Body force method / Ductile-brittle behaviour / Fatigue crack growth / Finite element analysis / Perpendicular to interface cracking / PMMA / Stress intensity factor
URI: http://hdl.handle.net/10069/22952
ISSN: 00137944
DOI: 10.1016/j.engfracmech.2007.03.040
権利: Copyright © 2007 Elsevier Ltd All rights reserved. / This is an author manuscript version of an article presented at International Conference on CRACK PATHS 2006. This is not a final author manuscript version of an article pulbished in Engineering Fracture Mechanics, 75(3-4), pp.674-681; 2008
資料タイプ: Conference Paper
原稿種類: author
出現コレクション:060 会議発表資料

引用URI : http://hdl.handle.net/10069/22952

このリポジトリに保管されている文献はすべて著作権により保護されています。
印刷やダウンロード等データの複製は、調査研究・教育または学習を目的とする場合に限定されます。

 

Valid XHTML 1.0! Copyright © 2006-2015 長崎大学附属図書館 - お問い合わせ Powerd by DSpace