| 考虑动应力时加载频率对裂纹扩展速率的影响 |
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| 引用本文： | 毛罕平,陈翠英.考虑动应力时加载频率对裂纹扩展速率的影响[J].江苏大学学报(自然科学版),1993(6). |
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| 作者姓名： | 毛罕平 陈翠英 |
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| 作者单位： | 江苏工学院农业机械工程分院，江苏工学院农业机械工程分院 镇江市 212013，镇江市 212013 |
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| 摘 要： | 导出了全面反映加载频率影响的裂纹扩展速率(da/dN)_d的计算公式;通过数值计算给出了(da/dN)_d与频率比、阻尼比之间的关系;研制了(da/dN)_d的试验装置,并由实验初步验证了计算结果。
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| 关 键 词： | 动应力 频率 裂纹扩展 |
Influence of Loading Frequency on Crack Propagation Rate with Dynamic Stress Involved |
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| Mao Hanping Chen Cuiying.Influence of Loading Frequency on Crack Propagation Rate with Dynamic Stress Involved[J].Journal of Jiangsu University:Natural Science Edition,1993(6). |
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| Authors: | Mao Hanping Chen Cuiying |
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| Institution: | Mao Hanping Chen Cuiying |
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| Abstract: | The formula is derived of calculating the influence of loading frequencies on the crack propagation rate (da / dN)d. By using numerical calculation, the relations between (da/ dN)d ,frequency ratio and damp ratio are given, an experimental rig is developed for (da/ dN)d and the calculated results are in agreement with experimental ones. |
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| Keywords: | dynamic stress frequency crack propagation |
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