| 简体接管边缘应力区局部减薄处应力特征 |
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| 引用本文： | 张翼,谭蔚,王小彬. 简体接管边缘应力区局部减薄处应力特征[J]. 石油化工设备, 2006, 35(1): 19-22 |
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| 作者姓名： | 张翼 谭蔚 王小彬 |
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| 作者单位： | 天津大学化工学院,天津300072 |
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| 摘 要： | 参考《压力容器定期检验规则》第40条,采用有限元方法计算了筒体接管边缘应力区局部减薄处的应力分布,得到了局部减薄处凹坑的尺寸与位置对应力的影响趋势,讨论了应力集中系数随尺寸变化的规律,为筒体接管边缘应力区局部减薄处的强度评定提供了一定的计算依据。
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| 关 键 词： | 压力容器 局部应力 局部减薄 凹坑 筒体接管边缘应力区 |
| 文章编号： | 1000-7466(2006)01-0019-04 |
| 修稿时间： | 2005-07-31 |
Stress characteristic study on local thinned area in the boundary stress region of nozzle-cylinder |
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| ZHANG Yi,TAN Wei,WANG Xiao-bin. Stress characteristic study on local thinned area in the boundary stress region of nozzle-cylinder[J]. Petro-Chemical Equipment, 2006, 35(1): 19-22 |
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| Authors: | ZHANG Yi TAN Wei WANG Xiao-bin |
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| Abstract: | Referring to item No.40 of "pressure vessels periodical inspection regulation",the stress distribution of local thinned area in the boundary stress region of nozzle-cylinder is calculated and the trends of stresses influenced by the dimension and location of part-through slot are obtained.Furthermore,the law that the stress concentrated factor changed with dimension is discussed.All these studies form a basis for intensity evaluation of local thinned area in the boundary stress region of nozzle-cylinder. |
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| Keywords: | pressure vessel local stress local thinned part-through slot boundary stress region of nozzle-cylinder |
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