| 孔边残余应变与疲劳循环次数相关性实验 |
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| 引用本文： | 朱金花,潘华烨,何世平.孔边残余应变与疲劳循环次数相关性实验[J].中国科学技术大学学报,2006,36(4):388-390. |
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| 作者姓名： | 朱金花 潘华烨 何世平 |
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| 作者单位： | 中国科学技术大学力学和机械工程系,安徽,合肥,230027 |
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| 摘 要： | 对有限宽中心带孔拉伸试样进行疲劳试验.在疲劳加载过程中,按一定的疲劳周次在零载荷状态下停机,并采集试件表面上预先制备的白光散斑图.再应用数字散斑相关技术测量了不同疲劳循环次数后孔周的残余变形场,并给出了孔边最大残余应变与疲劳循环次数的关系曲线.
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| 关 键 词： | 数字散斑相关技术 白光散斑 疲劳实验 残余应变 |
| 文章编号： | 0253-2778(2006)04-0388-03 |
| 收稿时间： | 09 19 2005 12:00AM |
| 修稿时间： | 01 14 2006 12:00AM |
Experiment on correlation of residual strain around the hole and fatigue life cycle |
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| ZHU Jin-hua,PAN Hua-ye,HE Shi-ping.Experiment on correlation of residual strain around the hole and fatigue life cycle[J].Journal of University of Science and Technology of China,2006,36(4):388-390. |
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| Authors: | ZHU Jin-hua PAN Hua-ye HE Shi-ping |
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| Institution: | Department of Morden Mechanics, USTC. Hefei 230027, China |
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| Abstract: | Fatigue tests were carried out on the limited width specimen with center-hole. During the experiment, the fatigue-loading was paused after fixed fatigue cycle and the white-light speckle patterns were acquired without loading. The residual deformation around the hole was measured by digital speckle correlation technique and the relation curves of residual strain at the side of hole vs fatigue life cycles were obtained. |
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| Keywords: | digital speckle correlation technique white-light speckle fatigue experiment residual strain |
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