| 疲劳裂纹的扩展规律和最新研究进展 |
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| 引用本文： | 朱晨,王伯健.疲劳裂纹的扩展规律和最新研究进展[J].新技术新工艺,2010(3):10-13. |
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| 作者姓名： | 朱晨 王伯健 |
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| 作者单位： | 西安建筑科技大学,陕西,西安,710055 |
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| 摘 要： | 疲劳裂纹的萌生以及扩展对于零构件的安全使用存在着巨大的潜在隐患,对于广大从事材料研发工作的技术人员来说,掌握疲劳裂纹扩展的基本规律,了解国内外疲劳裂纹扩展的最新研究进展是非常必要的。本文概括了疲劳裂纹在近门槛扩展阶段和高速扩展阶段(Paris区)的扩展规律,总结了近年来国内外学者在这2个扩展阶段的最新研究进展,结合近年来飞速发展的计算机技术,概述了计算机模拟技术在疲劳裂纹扩展研究领域中的广泛应用。
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| 关 键 词： | Paris公式 应力强度因子 裂纹扩展速率 裂纹扩展门槛值 |
The Recent Research on the Fatigue Crack Growth Law |
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| ZHU Chen,WANG Bojian.The Recent Research on the Fatigue Crack Growth Law[J].New Technology & New Process,2010(3):10-13. |
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| Authors: | ZHU Chen WANG Bojian |
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| Affiliation: | ZHU Chen,WANG Bojian(Xi\'an University of Architecture , Technology,Xi\'an 710055,China) |
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| Abstract: | The initiation and growth of the fatigue crack is a great hidden danger to the safety use of the mechanical elements,to the researchers who are working in the material field,it is very important for them to master the law to the fatigue crack growth and the latest found of this area.This paper primarily summarizes the law to the fatigue crack growth,especially on the stages of Paris zone.After that this paper summarized the latest found about the fatigue crack growth at home and abroad.Finally,the use of co... |
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| Keywords: | Paris equation Stress intensity factor Crack growth rare Crack growth threshold |
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