Constitutive equation of expanding cylindrical shell at constant strain rate

Guo Zhaoliang; Ren Guowu; Zhang Shiwen; Tang Tiegang; Liu Cangli

doi:10.11883/1001-1455(2016)05-0583-07

Volume 36 Issue 5

Oct. 2018

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Zhang Peili, Du Yang. Experiments of nitrogen non-premixed suppression of gasoline-air mixture explosion[J]. Explosion And Shock Waves, 2016, 36(3): 347-352. doi: 10.11883/1001-1455(2016)03-0347-06

Citation:

Guo Zhaoliang, Ren Guowu, Zhang Shiwen, Tang Tiegang, Liu Cangli. Constitutive equation of expanding cylindrical shell at constant strain rate[J]. Explosion And Shock Waves, 2016, 36(5): 583-589. doi: 10.11883/1001-1455(2016)05-0583-07

Zhang Peili, Du Yang. Experiments of nitrogen non-premixed suppression of gasoline-air mixture explosion[J]. Explosion And Shock Waves, 2016, 36(3): 347-352. doi: 10.11883/1001-1455(2016)03-0347-06

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Constitutive equation of expanding cylindrical shell at constant strain rate

doi: 10.11883/1001-1455(2016)05-0583-07

1.
Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621999, Sichuan, China
2.
China Academy of Engineering Physics, Mianyang 621999, Sichuan, China

Received Date: 2015-01-12
Rev Recd Date: 2015-05-06
Publish Date: 2016-09-25

Abstract

Abstract

In this work, taking into account of the interference of random cracks in the expansion process, we designed a cylindrical sample made with a preset hole. Then, using the Doppler pins system (DPS), we obtained some better curves for the cylinder's radial speed histories. Based on the non-constant strain rate phenomena in the expanding ring and expanding cylinder experiments, we conducted experiments and studied a method for obtaining constitutive equation at constant strain rate. The improved constitutive equation method was used to obtain the modified constitutive equation at constant strain rate for 20 steel.
- solid mechanics,
- constitutive equation,
- Doppler pins system(DPS),
- expanding cylindrical shell,
- constant strain rate

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感谢张振涛、金山、陈浩玉在实验开展中的帮助，感谢刘明涛、范诚在本文撰写过程中的建议。

References(13)

References

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