| 三表面割口单向叠层板的应力集中分析 |
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| 引用本文： | 李冬梅.三表面割口单向叠层板的应力集中分析[J].广东教育学院学报,2007,27(3):56-58. |
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| 作者姓名： | 李冬梅 |
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| 作者单位： | 广东水利电力职业技术学院 广东广州510635 |
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| 摘 要： | 为了揭示多个表面割口单向纤维增强复合材料叠层板的拉伸破坏机理,预估其破坏规律,基于剪滞理论,建立一种对各单层分划为有限子单元的剪滞分析模型,分析含三个平行的表面割口单向叠层板在拉伸载荷作用下的应力重新分布及各割口之间的相互影响问题,获得了表面割口附近完整纤维的应力集中因子、应力及位移分布规律.
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| 关 键 词： | 三表面割口单向叠层板 拉伸 子单元 剪滞分析 应力集中 |
| 文章编号： | 1007-8754（2007）03-0056-03 |
| 修稿时间： | 2007-01-06 |
The Stress Concentration for Triple Surface Notched Laminates |
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| LI Dong-mei.The Stress Concentration for Triple Surface Notched Laminates[J].Journal of Guangdong Education Institute,2007,27(3):56-58. |
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| Authors: | LI Dong-mei |
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| Institution: | Guangdong Technical College of Water Resources and Electric Engineering, Guangzhou, Guangdong, 510635, P.R. China |
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| Abstract: | In order to reveal the tensile failure mechanism and to predict the destroy rule of the multi-surface notched composite laminates,a shear-lag model that each lamina in laminate is divided into finite sub-elements was set up on the basis of the shear-lag theory.As a result,the stress redistributions and the influence between each notch for three parallel surface notched unidirectional laminates under tension were analyzed,the stress concentration factors in intact fibers at root of the surface notch and the stress and the rule of the displacement distributing were obtained. |
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| Keywords: | triple surface notched unidirectional laminate tensile sub-element shear-lag analysis stress concentration |
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