| 基于ANSYS的焊接箱形梁裂纹断裂分析 |
| |
| 引用本文： | 李振华,吴晓,高海龙,黄园园. 基于ANSYS的焊接箱形梁裂纹断裂分析[J]. 起重运输机械, 2010, 0(7): 84-86 |
| |
| 作者姓名： | 李振华 吴晓 高海龙 黄园园 |
| |
| 作者单位： | 西南交通大学机械工程研究所,成都,610031 |
| |
| 摘 要： | 以断裂力学理论为基础,推导了焊接箱形梁裂纹尖端应力强度因子计算公式,以ANSYS作为计算工具,模拟焊接箱形梁裂纹扩展,并采用奇异单元计算在不同长度初始裂纹下起重机焊接箱形梁应力强度因子范围。
|
| 关 键 词： | 箱形主梁 裂纹扩展 应力强度因子 |
Analysis on cracks and fractures of welded box girders based on ANSYS |
| |
| Abstract: | The calculation formula for the stress intensity factor at the tip of the crack on welded box girder is derived based on the fracture mechanics theory, and crack expansion of welded box girder is simulated with ANSYS, in addition, the range of stress intensity factor for the welded box girder of crane under different length of initial cracks is also calculated by adopting singular elements. |
| |
| Keywords: | main box girder crack expansion stress intensity factor |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
