| 塔机主臂杆三维裂纹应力强度因子的计算 |
| |
| 引用本文： | 戴文芳,曹宗杰. 塔机主臂杆三维裂纹应力强度因子的计算[J]. 吉林工程技术师范学院学报, 2009, 25(3): 78-80 |
| |
| 作者姓名： | 戴文芳 曹宗杰 |
| |
| 作者单位： | 空军航空大学,航空机械工程系,吉林,长春,130022;空军航空大学,航空机械工程系,吉林,长春,130022 |
| |
| 摘 要： | 采用三维裂纹奇异单元列式方法对含纵向闭合裂纹塔机主臂杆接头部位进行了应力分析和应力强度因子的计算，分析了焊接残余应力对塔机主臂杆母材强度、环向拉应力和应力强度因子的影响。
|
| 关 键 词： | 塔机主臂杆 应力强度因子 裂纹 残余应力 |
Computation of Stress Intensity Factors of the Main Arm of Tower Crane with 3-D Cracks |
| |
| DAI Wen-fang,CAO Zong-jie. Computation of Stress Intensity Factors of the Main Arm of Tower Crane with 3-D Cracks[J]. Journal of Jilin Teachers Institute of Engineering and Technology(Natural Sciences Edition), 2009, 25(3): 78-80 |
| |
| Authors: | DAI Wen-fang CAO Zong-jie |
| |
| Affiliation: | Department of Aviation Mechanical Engineering;Aviation University of Air Force;Changchun Jilin 130022;China |
| |
| Abstract: | In this paper,a new method to calculate stress intensity factors of three-dimensional crack problems is introduced.With the method,the structural strength of the main arm with longitudinal closed cracks under axial press stresses is analyzed.Because there are ring tensile stresses near joints on the main arm,the stress intensity factors are calculated at joints on the main arm of tower crane. |
| |
| Keywords: | main arm of tower crane stress intensity factors cracks residual stress |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
