| 1500m3液化石油气球罐的强度分析 |
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| 引用本文： | 王泽军,刘宏臣.1500m3液化石油气球罐的强度分析[J].压力容器,2003,20(6):33-35,38. |
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| 作者姓名： | 王泽军 刘宏臣 |
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| 作者单位： | 天津市锅炉压力容器技术检验所,天津,300192 |
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| 摘 要： | 通过对球罐的整体应力分析，指出将焊缝布置在高应力区域是造成焊缝裂纹的重要外部因素之一。进一步的焊缝应力集中系数研究表明，焊缝存在很大的应力集中系数。高的宏观应力和大的焊缝应力集中系数所引起的局部高应力水平在焊缝某些位置造成开裂或裂纹／类裂纹缺陷的扩展是可能的。
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| 关 键 词： | 球罐 裂纹 强度 应力集中 |
| 文章编号： | 1001-4837(2003)06-0033-03 |
Strength Analysis of 1500m3 LPG Sphere Tank |
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| WANG Ze-jun,LIU Hong-chen.Strength Analysis of 1500m3 LPG Sphere Tank[J].Pressure Vessel Technology,2003,20(6):33-35,38. |
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| Authors: | WANG Ze-jun LIU Hong-chen |
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| Abstract: | On the basis of FEM stress analysis of a sphere tank, it can be concluded the arrangement of weld in high stress area which was one of the most important exterior factors that cause weld cracks. Further analysis showed that there existed a rather high stress concentrate factor on the weld. It was possible for weld to crack or cracks/crack-like defects already existed to grow under high local stress caused by large stress concentrate factor and medium pressure. |
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| Keywords: | sphere tank crack strength stress concentration |
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