| 利用疲劳裂纹扩展速率估算断裂韧性 |
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| 引用本文： | 王永廉.利用疲劳裂纹扩展速率估算断裂韧性[J].航空学报,1997,18(6):728-731. |
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| 作者姓名： | 王永廉 |
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| 作者单位： | 南京电力高等专科学校力学教研室 |
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| 摘 要： | 提出了一种利用疲劳裂纹扩展速率来估算断裂韧性的方法，并利用2种材料12组试验数据对该法产生的误差及其控制方法进行了分析研究，结果表明，其误差可以控制在试验分散带内。
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| 关 键 词： | 断裂韧性 估算方法 疲劳裂纹扩展速率 |
ESTIMATION OF FRACTURE TOUGHNESS BY FATIGUE CRACK GROWTH RATE |
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| Wang Yonglian.ESTIMATION OF FRACTURE TOUGHNESS BY FATIGUE CRACK GROWTH RATE[J].Acta Aeronautica et Astronautica Sinica,1997,18(6):728-731. |
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| Authors: | Wang Yonglian |
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| Institution: | Mechanics Teaching and Research Group, Nanjing Electric Power College, Nanjing, 210013 |
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| Abstract: | A method is put forward to estimate fracture toughness K c by fatigue crack growth rate of material, and twelve sets of test data for two materials , titanium alloy IMI318 and aluminium alloy 7075 T7351, are used to analyse the error introduced by the method and the way to control it. The results indicate that the error can be controlled within the limits of the test scatter band. Thus, a new reliable and convenient approach is provided to acquire fracture toughness data of materials since a large number of fatigue crack growth rate data are available. |
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| Keywords: | fracture toughness estimating method fatigue crack growth rate |
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