| 轴力作用下X型焊接管节点热点应力的分布规律 |
| |
| 引用本文： | 邵永波.轴力作用下X型焊接管节点热点应力的分布规律[J].船舶力学,2010(Z1). |
| |
| 作者姓名： | 邵永波 |
| |
| 作者单位： | 烟台大学土木工程学院; |
| |
| 摘 要： | 海洋平台中的焊接管节点的疲劳寿命是由热点应力的大小和分布决定。热点应力的大小决定了管节点在疲劳失效前所能承受的循环荷载的次数,而热点应力的位置则决定了疲劳裂纹的萌生位置和扩展方式。文中采用有限元方法分析了承受轴向拉力作用的X型焊接管节点在焊缝周围的热点应力的分布情况,通过对112个X节点进行的模型分析,研究了节点几何参数对热点应力大小和分布规律的影响。
|
| 关 键 词： | T型焊接管节点 疲劳寿命 热点应力 轴力 几何参数 |
Hot spot stress distribution of welded tubular X-joints subjected to axial loads |
| |
| SHAO Yong-bo.Hot spot stress distribution of welded tubular X-joints subjected to axial loads[J].Journal of Ship Mechanics,2010(Z1). |
| |
| Authors: | SHAO Yong-bo |
| |
| Institution: | School of Civil Engineering;Yantai University;Yantai 264005;China |
| |
| Abstract: | The fatigue life of welded tubular joints in offshore platforms is determined by the magnitude and the distribution of the hot spot stress.The number of fatigue loading cycles for a tubular joint sustained before failure is determined by the magnitude of the hot spot stress,whereas the initiation position and the propagating way of the surface crack are determined by the location of the hot spot stress.The hot spot stress distribution along the weld toe for a tubular X-joint subjected to axial loads is anal... |
| |
| Keywords: | welded tubular X-joints fatigue life hot spot stress axial loads geometrical parameters |
| 本文献已被 CNKI 等数据库收录！ |
