| 拉压载荷对疲劳裂纹扩展影响的有限元分析 |
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| 引用本文： | 索斌,宋欣,张嘉振.拉压载荷对疲劳裂纹扩展影响的有限元分析[J].机械工程师,2007(1):79-81. |
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| 作者姓名： | 索斌 宋欣 张嘉振 |
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| 作者单位： | 哈尔滨理工大学,机械动力工程学院,哈尔滨,150080 |
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| 基金项目： | 黑龙江省教育厅科学技术研究项目 |
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| 摘 要： | 利用弹塑性有限元方法研究了压应力对裂纹尖端塑性区的影响和长短裂纹尖端的塑性区和裂纹张开剖面.通过分析表明,压应力对裂纹尖端塑性区和疲劳裂纹的扩展有显著的影响.
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| 关 键 词： | 有限元 疲劳裂纹 塑性区 裂纹张开位移 压载荷 疲劳裂纹扩展 影响 有限元分析 Loading Fatigue Crack Growth Implication Element Analysis 分析表 剖面 裂纹张开 塑性区 裂纹尖端 应力对 研究 有限元方法 弹塑性 利用 |
| 文章编号： | 1002-2333(2007)01-0079-03 |
| 修稿时间： | 2006-08-28 |
Finite Element Analysis of the Implication on Fatigue Crack Growth under Tension-Compressive Loading |
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| SUO Bin,SONG Xin,ZHANG Jia-zhen.Finite Element Analysis of the Implication on Fatigue Crack Growth under Tension-Compressive Loading[J].Mechanical Engineer,2007(1):79-81. |
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| Authors: | SUO Bin SONG Xin ZHANG Jia-zhen |
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| Abstract: | A detailed elastic-plastic finite element analysis of the effect of the compressive loading on crack tip plasticity is studied. The size of the crack tip reverse plastic zone and the crack opening profile for short(0.1mm) and long cracks(2mm) have been studied, too. The analysis shows that the compressive loading has a significant contribution towards the crack tip plasticity and the fatigue crack growth. |
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| Keywords: | finite element analysis fatigue crack plastic zone crack opening displacement |
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