| 管螺纹接头齿根表面裂纹的数值分析 |
| |
| 引用本文： | 尹辉.管螺纹接头齿根表面裂纹的数值分析[J].西南科技大学学报,1995(2). |
| |
| 作者姓名： | 尹辉 |
| |
| 作者单位： | 西南工学院机械系 |
| |
| 摘 要： | 本文采用一种混合的数值方法对管螺纹接头齿根中存在半椭园型表面裂纹的断裂强度作了三维数值分析，采用虚拟接触载荷法模拟啮合螺纹齿间的接触现象，确定载荷沿螺纹齿的分布规律，并求解出裂纹区的变形位移场。最后采用位移法。计算出裂纹体的应力强度因子。
|
| 关 键 词： | 管螺纹，表面裂纹，数值分析，应力强度因子 |
The Numerical Analysis for the Surface Crack at the Thread Root of a Screwed-Pipe Joint |
| |
| Yin Hui.The Numerical Analysis for the Surface Crack at the Thread Root of a Screwed-Pipe Joint[J].Journal of Southwest University of Science and Technology,1995(2). |
| |
| Authors: | Yin Hui |
| |
| Institution: | Sourthwest Institute of Techoology |
| |
| Abstract: | A mixed numerical method is proposed in this paper to make the three-dimensional numeri-cal analysis about the fracture intensity of the Screwed-pipe joint,with a semi-elliptical surfacecrack existing at its thread root.The virtual contact loading method is employed to simulate thecontact phenomenon between the engaged threads,determine the load distribution along thethreads and find out the displacements near the craek front.Then the stress-intensity factors ofthe cracked joint can be calculated by the displacement method. |
| |
| Keywords: | Screwed-pipe Surface Crack Numerical Analysis Stress-Intersity Factor |
| 本文献已被 CNKI 等数据库收录！ |
