| 基于形函数插值理论预测轴力作用下T型管节点热点应力的分布规律 |
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| 引用本文： | 邵永波.基于形函数插值理论预测轴力作用下T型管节点热点应力的分布规律[J].船舶力学,2008,12(5). |
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| 作者姓名： | 邵永波 |
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| 作者单位： | 烟台大学土木工程学院,山东烟台,264005 |
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| 基金项目： | 教育部留学回国人员科研启动基金 |
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| 摘 要： | 海洋平台中管节点的疲劳寿命由焊缝周围热点应力的分布情况决定.该文采用有限元方法分析了承受轴向力作用下T节点焊缝周围的应力分布规律.通过对140个具有不同几何形状的T节点模型的有限元分析结果.提出了一种基于形函数插值理论的方法预测T节点焊缝周围的应力分布,并且通过比较插值法得到的结果和有限元结果进行比较,验证了这种方法的准确性.
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| 关 键 词： | T节点 热点应力分布 轴力 插值理论 |
Prediction of the hot spot stress distribution of tubular T-joints under axial load based on shape function interpolation inthodtunction interpolation metnok |
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| SHAO Yong-bo.Prediction of the hot spot stress distribution of tubular T-joints under axial load based on shape function interpolation inthodtunction interpolation metnok[J].Journal of Ship Mechanics,2008,12(5). |
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| Authors: | SHAO Yong-bo |
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| Abstract: | The fatigue life of tubular joints in offshore engineering is determined by the stress distribution along the weld toe.The stress distribution principle along the weld toe for tubular T-joints subjected to axial load is analyzed in this study.An interpolation method based on Lagrange shape function is presented to predict the stress distribution along the weld toe for tubular T-joints.The accuracy of this method is verified through comparing the results obtained from this interpolation method and the finite element results. |
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| Keywords: | tubular T-joints hot spot stress distribution axial load interpolation method |
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