| 裂纹缺陷对液化气球罐强度的影响 |
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| 引用本文： | 梁清香,董双巧,王赟.裂纹缺陷对液化气球罐强度的影响[J].太原科技大学学报,2014(4):302-305. |
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| 作者姓名： | 梁清香 董双巧 王赟 |
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| 作者单位： | 太原科技大学应用科学学院,太原030024 |
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| 摘 要： | 在役的液化石油气球罐缺陷以裂纹为主,且内表面裂纹占很大比重。运用有限元软件,分析了球罐内表面横向裂纹和纵向裂纹对球罐强度的影响。结果表明,在其他条件相同情况下,同一位置的横向裂纹比纵向裂纹对球罐的危害性大。横向裂纹深度越深,危险性越大;长度越长,危害性反而越小。研究结果对在役带裂纹缺陷的液化石油气球罐的安全使用和评定具有实际意义。
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| 关 键 词： | 球罐 裂纹 强度 有限元 |
The Influence of Crack Defects on Strength of Liquefied Petroleum Gas Spherical Tank |
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| LIANG Qing-xiang,DONG Shuang-qiao,WANG Yun.The Influence of Crack Defects on Strength of Liquefied Petroleum Gas Spherical Tank[J].Journal of Taiyuan University of Science and Technology,2014(4):302-305. |
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| Authors: | LIANG Qing-xiang DONG Shuang-qiao WANG Yun |
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| Institution: | (School of Applied Science, Taiyuan University of Science and Technology, Taiyuan 030024, China) |
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| Abstract: | The defects in the use of LPG tank are mainly cracks,and the inner-surface cracks accounted for a large proportion.In this paper,the influence of the transverse and longitudinal cracks in the spherical tank inner surface on the strength is analyzed by finite element analysis software.The results show that under the same conditions,the transverse crack is larger than the longitudinal cracks in the same position.The deeper transverse cracks,the greater the risk; the longer length,but the smaller the dangers.The results of the study are of practical significance for the safe use and evaluation to take crack defects of liquefied petroleum gas spherical tank in service. |
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| Keywords: | spherical tank crack strength finite element |
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