| 某型主战坦克扭力轴的疲劳断裂分析与寿命计算 |
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| 引用本文： | 李永东,张丙喜,贾斌. 某型主战坦克扭力轴的疲劳断裂分析与寿命计算[J]. 机械强度, 2004, 26(4): 443-446 |
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| 作者姓名： | 李永东 张丙喜 贾斌 |
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| 作者单位： | 解放军装甲兵工程学院,机械系工程力学教研室,北京,100072;哈尔滨工业大学,材料力学教研室,哈尔滨,150001 |
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| 基金项目： | 总装备部技术基础资助项目 (2 0 0 3JJ0 2 )，装甲兵工程学院战略投资项目 (2 0 0 4ZL1 8)~~ |
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| 摘 要： | 应用断裂力学理论和有限元分析方法对某型主战坦克扭力轴进行疲劳断裂计算和分析，论述裂纹尖端的奇异三角形单元划分技术，在有限元法计算的基础上求解裂纹尖端应力强度因子和裂纹形状系数，并结合Paris公式对某坦克扭力轴的疲劳寿命进行计算。
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| 关 键 词： | 坦克扭力轴 疲劳 断裂 应力强度因子 有限元法 |
FATIGUE AND FRACTURE ANALYSIS AND LIFE PREDICTION OF THE TANK TORSION SHAFT |
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| LI YongDong ZHANG BingXi JIA Bin. FATIGUE AND FRACTURE ANALYSIS AND LIFE PREDICTION OF THE TANK TORSION SHAFT[J]. Journal of Mechanical Strength, 2004, 26(4): 443-446 |
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| Authors: | LI YongDong ZHANG BingXi JIA Bin |
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| Affiliation: | LI YongDong 1 ZHANG BingXi 1 JIA Bin 2 |
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| Abstract: | Fatigue and fracture calculation and analysis were carried out for the tank torsion shaft with the methods of fracture mechanics and finite elements theories. The plotting technologies about singular elements around the crack tip were dealt with in detail. On the basis of finite elements calculations, the stress intensity factors and the shape coefficients for the cracks were got and the working life of the tank torsion shaft was also predicted by the Paris formula. The fatigue and fracture analysis methods adopted here can be used to solve similar problems for most machine parts. |
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| Keywords: | Tank torsion shaft Fatigue Fracture Stress intensity factor Finite element method |
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