FRACTURE BEHAVIOUR OF TUNGSTEN ALLOY AT HIGH RATES OF STRAIN BY EXPLOSIVE LOADING

Acta Metall Sin

1994, Vol. 30

Issue (4): 181-18 DOI:

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FRACTURE BEHAVIOUR OF TUNGSTEN ALLOY AT HIGH RATES OF STRAIN BY EXPLOSIVE LOADING

LIU Xiaoping; ZHOU Michun; WANG Chunkui; DUAN Zhuping (Institute of Mechanics; Chinese Academy of Sciences; Beijing)(Manuscript received 10 August; 1993; in reviced form 18 October;1993)

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LIU Xiaoping; ZHOU Michun; WANG Chunkui; DUAN Zhuping (Institute of Mechanics; Chinese Academy of Sciences; Beijing)(Manuscript received 10 August; 1993; in reviced form 18 October;1993). FRACTURE BEHAVIOUR OF TUNGSTEN ALLOY AT HIGH RATES OF STRAIN BY EXPLOSIVE LOADING. Acta Metall Sin, 1994, 30(4): 181-18.

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Abstract A contact explosion technique is developed using PETN compact powder explosive to study the fracture behaviour of 93W-4Ni3Fe W alloy at high strain rates. The fractograph exhibits a strong feature of brittle type. This fact is because of greater increase in W-W fracture interface at high loading rates in comparison with the existing results in quasi-static test.Correspondent. LIU Xiaoping, Institute of Mechanics, Chinese Academy of Sciences, Beijing 10080

Key words: W alloy strain rate explosion loading fracture

Received: 18 April 1994

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https://www.ams.org.cn/EN/ OR https://www.ams.org.cn/EN/Y1994/V30/I4/181

1LankfordJ,AndersonCEJr,BodnerSR．JMaterSciLett,1988;7:13552杨桂通,张善元．弹性动力学．北京:中国铁道出版社,1988:2023AndersonCEJr,O'DonoghuePE,BodnerSR．IntJImpactEng,1989;8:694LiuJM,ShenBW．MetallTrans,1984:15A:12475CougueH,LankfordJ．InstPhysConfSer,1989:Section2:89\

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