| 桥式类型起重机箱形梁变幅疲劳试验研究 |
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| 引用本文： | 王生翟,甲昌.桥式类型起重机箱形梁变幅疲劳试验研究[J].太原科技大学学报,1996(2). |
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| 作者姓名： | 王生翟 甲昌 |
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| 作者单位： | 中国科学院力学所(王生翟)，太原重型机械学院(甲昌) |
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| 摘 要： | 本文对桥式类型起重机箱形梁在变幅载荷作用下疲劳裂纹扩展规律及其寿命进行了实验研究，建立疲劳裂纹扩展规律及其寿命进行了实验研究，建立了疲劳裂纹扩展的Ｐａｒｉｓ公式．由得到的裂纹扩展公式估算了箱形梁的疲劳寿命和疲劳强度，并与试验结果作了比较
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| 关 键 词： | 箱形梁 变幅载荷 疲劳 应力强度因子幅 |
Variable Amplitude Fstigue Studies on Box Girders of overhead type Crane |
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| Wang Sheng,Zhai Jiachang.Variable Amplitude Fstigue Studies on Box Girders of overhead type Crane[J].Journal of Taiyuan University of Science and Technology,1996(2). |
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| Authors: | Wang Sheng Zhai Jiachang |
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| Abstract: | This paper has carried on an experimental investigation into fatigue Crack propagation and its life of box girders of overhead typa Crane subjected to variable amplitude loading,established paris formula of fatigue crack propagation.By Using the Crack Propagation formula obtained,fatigue life and fatigue strength of box girders were estimated,and campared with experimental results. |
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| Keywords: | box girder variable amptitude loading fatigue stress intensive factor range |
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