| 带体积型缺陷压力管道极限载荷的有限元分析 |
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| 引用本文： | 舒安庆,王.带体积型缺陷压力管道极限载荷的有限元分析[J].管道技术与设备,2008(4):5-6. |
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| 作者姓名： | 舒安庆 王 |
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| 作者单位： | 武汉工程大学机械工程学院,湖北武汉,430073;武汉市压力容器压力管道安全工程研究中心,湖北武汉,430073 |
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| 摘 要： | 管道在使用过程中会出现各种缺陷，主要以腐蚀造成的体积型缺陷为主。采用有限元弹塑性分析方法，基于Von—Mise屈服准则，对含体积型缺陷的压力管道进行非线性分析，研究腐蚀缺陷的长度、宽度和深度对压力管道极限载荷的影响。与含腐蚀缺陷管道的水压试验结果及ASME B31G计算的结果进行对比，证明有限元方法在分析腐蚀缺陷管道的可行性。
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| 关 键 词： | 压力管道 体积型缺陷 极限载荷 有限元 |
Finite Element Analysis of a Limit Load on Corroded Pressure Pipeline |
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| SHU An-qing,WANG Wei,WEI Hua-zhong.Finite Element Analysis of a Limit Load on Corroded Pressure Pipeline[J].Pipeline Technique and Equipment,2008(4):5-6. |
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| Authors: | SHU An-qing WANG Wei WEI Hua-zhong |
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| Institution: | SHU An-qing ,WANG Wei ,WEI Hua-zhong ( 1. School of Mechanical Engineering, Wuhan Institute of Technology, Wuhan 430073, China; 2. Wuhan Research Center of Pressure Vessel and Piping Safety Engineering, Wuhan 430073, China) |
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| Abstract: | Defects commonly occur when the pipeline is in service.The main defects are volume-scale defects caused by corrosion.Using an elastic-plastic finite element analysis method,based on Von-Mise criteria,a systematic nonlinear analysis is carried out on pressure pipeline.Effects of corrosion length,depth and width on the limit load are studied.Compared with burst test results and ASME B31G results,the finite element method used in analyzing corrosion defects on pipeline is proved feasible. |
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| Keywords: | pressure pipeline volume defects limit load finite element |
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