| 四点弯曲型试件的裂纹面张开位移 |
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| 引用本文： | 徐济民,何峻平,白大庆.四点弯曲型试件的裂纹面张开位移[J].清华大学学报(自然科学版),1993(2). |
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| 作者姓名： | 徐济民 何峻平 白大庆 |
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| 作者单位： | 机械工程系
(徐济民，何峻平)，机械工程系(白大庆) |
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| 摘 要： | 研究了四点弯曲型试件在各种类型载荷作用下的裂纹面位移，并考虑了裂纹尖端塑性区对它的影响。得到了它的计算式与数值计算程序，为研究疲劳裂纹的闭合行为提供了分析手段。
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| 关 键 词： | 裂纹面位移 裂纹闭合 四点弯曲 塑性区 |
Opening displacement of crack surface in four-point-bend specimen |
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| Xu Jimin,He Junping,Bai Daqing.Opening displacement of crack surface in four-point-bend specimen[J].Journal of Tsinghua University(Science and Technology),1993(2). |
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| Authors: | Xu Jimin He Junping Bai Daqing |
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| Institution: | Department of Mechanical Engineering |
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| Abstract: | A crack surface displacement of four-point-bend specimen under three types of loading is studied in this paper. Considering the effect of plastic zone ahead of crack tip, the authors develop a set of formulas and procedure of numerical calculation, which provide an analytical means for studying the fatigue crack closure. |
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| Keywords: | crack surface displacement crack closure four-point-bend plastic zone |
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