Mechanical properties of PTFE at high strain rate

Li Shunping; Feng Shunshan; Xue Zaiqing; Tu Jian

doi:10.11883/1001-1455(2017)06-1046-05

Volume 37 Issue 6

Sep. 2017

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Li Shunping, Feng Shunshan, Xue Zaiqing, Tu Jian. Mechanical properties of PTFE at high strain rate[J]. Explosion And Shock Waves, 2017, 37(6): 1046-1050. doi: 10.11883/1001-1455(2017)06-1046-05

Citation:

Li Shunping, Feng Shunshan, Xue Zaiqing, Tu Jian. Mechanical properties of PTFE at high strain rate[J]. Explosion And Shock Waves, 2017, 37(6): 1046-1050. doi: 10.11883/1001-1455(2017)06-1046-05

Li Shunping, Feng Shunshan, Xue Zaiqing, Tu Jian. Mechanical properties of PTFE at high strain rate[J]. Explosion And Shock Waves, 2017, 37(6): 1046-1050. doi: 10.11883/1001-1455(2017)06-1046-05

Citation:

Li Shunping, Feng Shunshan, Xue Zaiqing, Tu Jian. Mechanical properties of PTFE at high strain rate[J]. Explosion And Shock Waves, 2017, 37(6): 1046-1050. doi: 10.11883/1001-1455(2017)06-1046-05

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Mechanical properties of PTFE at high strain rate

doi: 10.11883/1001-1455(2017)06-1046-05

1.
Beijing Institute of Space Long March Vehicle, Beijing 100076, China
2.
Beijing Institute of Technology, Beijing 100081, China

Received Date: 2016-04-25
Rev Recd Date: 2016-07-31
Publish Date: 2017-11-25

Abstract

Abstract

The mechanical properties of polyetrafluoroethylene (PTFE), which is being used increasingly in diverse applications owing to its many attractive properties, are important for applications involving either high-velocity impact or blast loading at very high strain rates (of the order of 10⁶ s^-1). In this work, for high strain rates of 10⁵~10⁶ s^-1, the PTFE dynamic pressure experiment was conducted using the pressure-shear plate-impact (PSPI) facility in which a tungsten-carbide (WC) flyer impacted a target assembly consisting of a thin PTFE plate sandwiched between two hard (elastic) WC plates. The velocity at the free surface of the target assembly was measured using the laser interferometry, an effective method was adopted to analyze the experimental results to obtain the values of the stress and strain at four points, and the stress strain relationship was fitted. The investigation has significance for the analysis of the strength and impact crushing performance of PTFE/metal reactive fragments.
- polyetrafluoroethylene (PTFE),
- high strain rate,
- pressure-shear plate-impact (PSPI),
- stress-strain curve

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References

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