| 均匀受压含裂纹损伤加筋板的极限承载能力分析 |
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| 引用本文： | 张琴,肖桃云,刘敬喜. 均匀受压含裂纹损伤加筋板的极限承载能力分析[J]. 中国舰船研究, 2011, 6(5): 16-22. DOI: 10.3969/j.issn.1673-3185.2011.05.004 |
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| 作者姓名： | 张琴 肖桃云 刘敬喜 |
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| 作者单位： | 华中科技大学船舶与海洋工程学院,湖北武汉,430074 |
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| 摘 要： | 在均匀受压下,针对含损伤裂纹缺陷的加筋板的承载力学特性进行研究,探讨了裂纹参数对其承载能力的影响。通过改变加筋板上裂纹的位置和裂纹尺寸,利用非线性有限元分析软件Abaqus对其进行系列非线性仿真分析,得到含损伤裂纹加筋板的破坏力学特性以及破坏模式。结果表明,损伤裂纹会削弱加筋板架的承载能力,并且当裂纹尺寸超过某临界值时,板架的极限承载力会急剧减小。
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| 关 键 词： | 船舶结构 加筋板 裂纹 剩余极限强度 |
Ultimate Strength Analysis of Cracked Stiffened Plates Under Uniaxiai Compression Loads |
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| Zhang Qin,Xiao Tao-yun,Liu Jing-xi. Ultimate Strength Analysis of Cracked Stiffened Plates Under Uniaxiai Compression Loads[J]. Chinese Journal of Ship Research, 2011, 6(5): 16-22. DOI: 10.3969/j.issn.1673-3185.2011.05.004 |
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| Authors: | Zhang Qin Xiao Tao-yun Liu Jing-xi |
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| Affiliation: | Zhang Qin Xiao Tao-yun Liu Jing-xi School of Naval Architecture and Ocean Engineering,Huazhong University of Science and Technology, Wuhan 430074,China |
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| Abstract: | Mechanical properties of cracked stiffened plates under uniaxial compression loads were studied.The ultimate strength reduction of stiffened plates due to different sizes and locations of the cracks were investigated.A series of nonlinear finite element analyses for cracked stiffened plates under uniaxial compression loads were carried out by software Abaqus.Then the mechanical characteristics and failure modes are presented.It is shown that the ultimate strength of stiffened plates can be reduced due to the cracks,and the ultimate strength will be sharply decreased when crack sizes exceed critical values. |
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| Keywords: | ship structure stiffened plate crack residual ultimate strength |
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