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| KK型管节点应力集中系数问题研究 | |
| 引用本文： | 于国友,付艳霞,王殿萍. KK型管节点应力集中系数问题研究[J]. 中国海洋平台, 2007, 22(1): 20-24 |
| 作者姓名： | 于国友 付艳霞 王殿萍 |
| 作者单位： | 天津大学,天津,300072 |
| 摘 要： | 采用有限元方法研究了在轴向力作用下KK型管节点应力集中系数与相同尺寸K型管节点的区别,指出在某些情况下用K型管节点应力集中公式分析KK型管节点会造成结构的不安全,必须引起工程界的注意。 |
| 关 键 词： | 管节点 应力集中系数 有限元 |
| 文章编号： | 1001-4500(2006)06-0020-05 |
| 修稿时间： | 2006-06-05 |
RESEARCH ON STRESS CONCENTRATION FACTOR FOR COMPLEX KK JOLNTS |
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| YU Guoyou,FU Yanxia,WANG Dianping. RESEARCH ON STRESS CONCENTRATION FACTOR FOR COMPLEX KK JOLNTS[J]. China offshore Platform, 2007, 22(1): 20-24 | |
| Authors: | YU Guoyou FU Yanxia WANG Dianping |
| Affiliation: | Tianjin University,Tianjin 200072 |
| Abstract: | Stress concentration factor(SCF) has long been used as a simple method to determine the highest stress in tubular joints,which is used further to determine the fatigue stability of offshore platforms using S-N method.Therefore,SCF is crucial for the safety of offshore platforms.The existing empirical formulas are suitable only to simple tubular joints.In this paper,FEM is used to calculate SCF values for KK joint under axial forces.Comparing to the results for simple K joint with the same dimensions,it's concluded that those empirical formulas for simple K joint are not suitable to calculate SCF for complex KK joint,which should cause more attention from engineers. |
| Keywords: | tubular joints stress concentration factor finite element method |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |