| 弯矩下含肩部穿透裂纹接管应力强度因子研究 |
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| 引用本文： | 喻健良,董硕,朱奕漪,闫兴清,刘显凡.弯矩下含肩部穿透裂纹接管应力强度因子研究[J].石油化工设备,2011,40(1):10-13. |
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| 作者姓名： | 喻健良 董硕 朱奕漪 闫兴清 刘显凡 |
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| 作者单位： | 1. 大连理工大学,化工学院,辽宁,大连,116023
2. 中南大学,材料学院,湖南,长沙,410083 |
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| 摘 要： | 在弯矩作用下，含裂纹接管的应力强度因子研究鲜见报道，其研究结果对丰富缺陷压力容器的安全评定具有重要的意义。采用三维有限元方法，对含肩部穿透裂纹接管在弯矩作用下裂纹的应力强度因子KIM进行计算和分析。研究结果表明，弯矩与KIM呈线性关系，裂纹长度越大，KIM越大；接管和容器的壁厚增加、容器开孔增大，KIM均减少。同时给出了KIM拟合式和KIM与各参数关系以用于对此类缺陷的安全评定。
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| 关 键 词： | 接管 应力强度因子 穿透裂纹 肩部裂纹 有限元 |
Stress Intensity Factor for Nozzle Containing Through-wall Crack at the Shoulder under Moment |
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| YU Jian-liang,DONG Shuo,ZHU Yi-yi,YAN Xing-qing,LIU Xian-fan.Stress Intensity Factor for Nozzle Containing Through-wall Crack at the Shoulder under Moment[J].Petro-Chemical Equipment,2011,40(1):10-13. |
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| Authors: | YU Jian-liang DONG Shuo ZHU Yi-yi YAN Xing-qing LIU Xian-fan |
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| Affiliation: | YU Jian-liang1,DONG Shuo1,ZHU Yi-yi2,YAN Xing-qing1,LIU Xian-fan1(1.Chemical Engineering College,Dalian University of Technology,Dalian 116023,China,2.Material Engineering College,Central South University,Changsha 410083,China) |
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| Abstract: | The research of stress intensity factor for nozzle containing crack under moment,which has not been reported,is of great significance to assessing pressure vessel containing defects.The 3-D finite element method is applied to analyze the stress intensity factor KIM of the nozzle containing through-wall crack at the shoulder under moment.The research indicates that KIM is proportional to moment.And KIM increases when the crack length becomes larger.KIM decreases when the nozzle width,the vessel width and the... |
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| Keywords: | nozzle stress intensity factor through-wall crack crack at shoulder finite element |
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