Impact-induced initiation thresholds of polytetrafluoroethylene/Al composite by gas gun

Chao Ge; Wubuliaisan Maimaitituersun; Chao Tian; Yongxiang Dong; Qing Song

doi:10.11883/bzycj-2017-0030

Impact-induced initiation thresholds of polytetrafluoroethylene/Al composite by gas gun

Chao Ge, Wubuliaisan Maimaitituersun, Chao Tian, Yongxiang Dong^*, Qing Song

^*Corresponding author for this work

School of Mechatronical Engineering

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

Impact experiments by a gas gun were conducted to investigate the impact-induced initiation thresholds of a PTFE (polytetrafluoroethylene)/Al composite using targets of steel, aluminum and low-density polyethylene (LDPE) materials and sample rods of four different lengths. By subjecting the samples under different loading conditions, it is shown that the impact-induced initiation of PTFE/Al is determined by both the impact pressure and the loading strain rate. The impact pressure and the strain rate thresholds for initiation were arrested by the experiments and the impacting process of the samples was modeled to compare the experimental and theoretical data. Based on all the experimental results, a theoretical curve was proposed to predict the impact-induced initiation of PTFE/Al under normal impact. The method proposed in this research can also be used in the study of other energetic materials.

Original language	English
Pages (from-to)	1-8
Number of pages	8
Journal	Baozha Yu Chongji/Expolosion and Shock Waves
Volume	38
Issue number	1
DOIs	https://doi.org/10.11883/bzycj-2017-0030
Publication status	Published - 25 Jan 2018

Keywords

Impact experiments
Impact-induced initiation
PTFE/Al
Thresholds

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10.11883/bzycj-2017-0030

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abstract = "Impact experiments by a gas gun were conducted to investigate the impact-induced initiation thresholds of a PTFE (polytetrafluoroethylene)/Al composite using targets of steel, aluminum and low-density polyethylene (LDPE) materials and sample rods of four different lengths. By subjecting the samples under different loading conditions, it is shown that the impact-induced initiation of PTFE/Al is determined by both the impact pressure and the loading strain rate. The impact pressure and the strain rate thresholds for initiation were arrested by the experiments and the impacting process of the samples was modeled to compare the experimental and theoretical data. Based on all the experimental results, a theoretical curve was proposed to predict the impact-induced initiation of PTFE/Al under normal impact. The method proposed in this research can also be used in the study of other energetic materials.",

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AU - Ge, Chao

AU - Maimaitituersun, Wubuliaisan

AU - Tian, Chao

AU - Dong, Yongxiang

AU - Song, Qing

PY - 2018/1/25

Y1 - 2018/1/25

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AB - Impact experiments by a gas gun were conducted to investigate the impact-induced initiation thresholds of a PTFE (polytetrafluoroethylene)/Al composite using targets of steel, aluminum and low-density polyethylene (LDPE) materials and sample rods of four different lengths. By subjecting the samples under different loading conditions, it is shown that the impact-induced initiation of PTFE/Al is determined by both the impact pressure and the loading strain rate. The impact pressure and the strain rate thresholds for initiation were arrested by the experiments and the impacting process of the samples was modeled to compare the experimental and theoretical data. Based on all the experimental results, a theoretical curve was proposed to predict the impact-induced initiation of PTFE/Al under normal impact. The method proposed in this research can also be used in the study of other energetic materials.

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Impact-induced initiation thresholds of polytetrafluoroethylene/Al composite by gas gun

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