| Two-Dimensional Large Deformation Finite Element Analysis for the Pulling-up of Plate Anchor |
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| 作者姓名： | 王栋 胡玉霞 金霞 |
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| 作者单位： | [1]State Key Laboratory of Coastal and Offshore Engincering, Dalian University of Technology, Dalian 116024, China [2]Department of Civil Engineering, Curtin University of Technology, Perth 6102, Australia [3]College of Computer Science and Technology, Dalian Maritime University , Dalian 116026, China |
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| 基金项目： | 国家自然科学基金;大连理工大学校科研和教改项目 |
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| 摘 要： |
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| 关 键 词： | 有限元分析 海洋资源 石油 天然气 |
| 收稿时间： | 2005-10-14 |
| 修稿时间： | 2006-03-08 |
Two-Dimensional Large Deformation Finite Element Analysis for the Pulling-up of Plate Anchor |
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| WANG Dong,HU Yu-xia,JIN Xia.Two-Dimensional Large Deformation Finite Element Analysis for the Pulling-up of Plate Anchor[J].China Ocean Engineering,2006,20(2):269-278. |
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| Authors: | WANG Dong HU Yu-xia JIN Xia |
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| Abstract: | Based on mesh regeneration and stress interpolation from an old mesh to a new one, a large deformation finite element model is developed for the study of the behaviour of circular plate anchors subjected to uplift loading. For the deterruination of the distributions of stress components across a clay foundation, the Recovery by Equilibrium in Patches is extended to plastic analyses. ABAQUS, a commercial finite element package, is customized and linked into our program so as to keep automatic and efficient running of large deformation calculation. The quality of stress interpolation is testified by evaluations of Tresca stress and nodal reaction forces. The complete pulling-up processes of plate anchors buried in homogeneous clay arc simulated, and typical pulling force-displacement responses of a deep anchor and a shallow anchor are compared. Different from the results of previous studies, large deformation analysis is of the capability of estimating the breakaway between the anchor bottom and soils. For deep anchors, the variation of mobilized uplift resistance with anchor settlement is composed of three stages, and the initial buried depths of anchors affect the separation embedment slightly. The uplift bearing capacity of deep anchors is usually higher than that of shallow anchors. |
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| Keywords: | finite elements plate anchor clay large deformation uplift bearing capacity |
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