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Effect of L/D on penetration performance of tungsten fibre/Zr-based bulk metallic glass matrix composite rod
Du, Chengxin; Shu, Dongwei; Du, Zhonghua; Gao, Guangfa; Wang, Meng; Zhu, Zhengwang; Xu, Lizhi
2019-12-01
Source PublicationINTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
ISSN0263-4368
Volume85
AbstractTungsten fibre/Zr-based bulk metallic glass matrix composite (WF/Zr-MG) is a potential penetrator material. In the present paper, the effect of L/D on the penetration performance of WF/Zr-MG rod is studied. Experiments and finite element method (FEM) simulations of WF/Zr-MG and tungsten heavy alloy (WHA) rods with L/D of 18.33, 5.4, 3.89, 3.75 and 1.11 penetrating into armor steel targets (RHA) are conducted. The experimental results show that penetration efficiency (P/L) of WF/Zr-MG rods with L/D of 18.33, 5.4, 3.89 are higher than that of WHA rods with the same L/D, because the penetration process is long enough to include a steady state penetration self-sharpening. The steady state penetration self-sharpening results in less kinetic energy consumed of rods during penetration. Longitudinal splitting occurs in WF/Zr-MG rods with L/D of 3.75 during the penetration process, which results in a much lower P/L than that of WHA rods with L/D of 3.75. A jacket structure could prevent the longitudinal splitting and increase P/L of WF/Zr-MG rods. P/L of jacketed WF/Zr-MG rods with L/D of 1.11 is slightly lower than that of jacketed WHA rods with L/D of 1.11, because of its short penetration process without the steady state penetration self-sharpening. P/L curve fitted as a function of normalized impact velocity and L/D of the WF/Zr-MG rods into RHA shows the advantages of WF/Zr-MG rods over WHA rods increase with L/D.
KeywordL/D Tungsten fibre/Zr-based bulk metallic glass matrix composite (WF/Zr-MG) Penetration self-sharpening Longitudinal splitting Finite element method (FEM)
Indexed BySCI
Language英语
WOS IDWOS:000490047100011
PublisherELSEVIER SCI LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/80601
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Du, Chengxin,Shu, Dongwei,Du, Zhonghua,et al. Effect of L/D on penetration performance of tungsten fibre/Zr-based bulk metallic glass matrix composite rod[J]. INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS,2019,85.
APA Du, Chengxin.,Shu, Dongwei.,Du, Zhonghua.,Gao, Guangfa.,Wang, Meng.,...&Xu, Lizhi.(2019).Effect of L/D on penetration performance of tungsten fibre/Zr-based bulk metallic glass matrix composite rod.INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS,85.
MLA Du, Chengxin,et al."Effect of L/D on penetration performance of tungsten fibre/Zr-based bulk metallic glass matrix composite rod".INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS 85(2019).
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