Compressive deformation behaviors of beryllium

Xiao Dawu; Qiu Zhicong; Wu Xiangchao; He Lifeng

doi:10.11883/1001-1455(2016)02-0285-04

Volume 36 Issue 2

Oct. 2018

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Xiao Dawu, Qiu Zhicong, Wu Xiangchao, He Lifeng. Compressive deformation behaviors of beryllium[J]. Explosion And Shock Waves, 2016, 36(2): 285-288. doi: 10.11883/1001-1455(2016)02-0285-04

Citation:

Xiao Dawu, Qiu Zhicong, Wu Xiangchao, He Lifeng. Compressive deformation behaviors of beryllium[J]. Explosion And Shock Waves, 2016, 36(2): 285-288. doi: 10.11883/1001-1455(2016)02-0285-04

Xiao Dawu, Qiu Zhicong, Wu Xiangchao, He Lifeng. Compressive deformation behaviors of beryllium[J]. Explosion And Shock Waves, 2016, 36(2): 285-288. doi: 10.11883/1001-1455(2016)02-0285-04

Citation:

Xiao Dawu, Qiu Zhicong, Wu Xiangchao, He Lifeng. Compressive deformation behaviors of beryllium[J]. Explosion And Shock Waves, 2016, 36(2): 285-288. doi: 10.11883/1001-1455(2016)02-0285-04

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Compressive deformation behaviors of beryllium

doi: 10.11883/1001-1455(2016)02-0285-04

Institute of Materials, China Academy of Engineering Physics, Jiangyou 621908, Sichuan, China

Received Date: 2014-12-03
Rev Recd Date: 2015-06-09
Publish Date: 2016-03-25

Abstract

Abstract

The quasi-static and dynamic compression behavior of beryllium was investigated by using MTS and SHPB at different temperatures. Investigated results show that beryllium exhibits excellent plasticity under compression. Sensitive to the changes in temperature and strain rate, the yield point and flow stress of beryllium have an marked tendency to increase with the increase of the strain rate, and to decrease gradually with the rise of temperatures. At the same time, the work hardening behavior of beryllium exhibits a piecewise hardening feature as the strain increases at room temperature, and tends to become smooth as the temperature rises. Finally, a modified Johnson-Cook constitutive model was developed to predict the deformation behavior of beryllium over a wide range of temperatures and strain rates. The calculation results of the model are in good agreement with those achieved from the experiment.
- solid mechanics,
- modified Johnson-Cook constitutive model,
- material testing machine,
- SHPB,
- beryllium

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References(11)

References

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