| 用Hopkinson杆技术研究材料动态断裂韧性的进展 |
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| 引用本文： | 崔新忠,范亚夫,纪伟,陈捷.用Hopkinson杆技术研究材料动态断裂韧性的进展[J].兵器材料科学与工程,2010,32(2):118-122. |
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| 作者姓名： | 崔新忠 范亚夫 纪伟 陈捷 |
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| 作者单位： | 中国兵器科学研究院,宁波分院,山东,烟台,264003;中国兵器科学研究院,宁波分院,山东,烟台,264003;中国兵器科学研究院,宁波分院,山东,烟台,264003;中国兵器科学研究院,宁波分院,山东,烟台,264003 |
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| 摘 要： | 综述应用Hopkinson杆技术进行材料动态断裂韧性研究的实验方法。介绍入射波整形技术和力传感器技术在动态断裂韧性实验中的应用。简要总结动态应力强度因子的计算方法和裂纹起裂时间的确定方法。展望动态断裂韧性研究的发展趋势。
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| 关 键 词： | 动态断裂韧性 Hopkinson杆技术 综述 动态应力强度因子 加载率 |
Progress in the research of dynamic fracture toughness based on Hopkinson bar technique |
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| CUI Xinzhong,FAN Yafu,JI Wei,CHEN Jie.Progress in the research of dynamic fracture toughness based on Hopkinson bar technique[J].Ordnance Material Science and Engineering,2010,32(2):118-122. |
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| Authors: | CUI Xinzhong FAN Yafu JI Wei CHEN Jie |
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| Affiliation: | Ningbo Branch of China Academy of Ordnance Science;Yantai 264003;China |
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| Abstract: | The experimental techniques of dynamic fracture toughness based on Hopkinson bar technique were summarized.Some new improvements on the technique such as pulse shaping technique and force transducer were introduced.The methods of calculating dynamic stress intensity factor and determining crack-initiation time were generalized briefly.The viewpoint of future development of dynamic fracture toughness was proposed. |
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| Keywords: | dynamic fracture toughness Hopkinson bar technique review dynamic stress intensity factor loading rate |
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