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Chinese Journal of Materials Research  2016, Vol. 30 Issue (5): 329-335    DOI: 10.11901/1005.3093.2015.334
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Investigation into Damage of Woven Stuffed Shield Impacted by High-Velocity Nonmetallic Projectile
GUAN Gongshun**(), LI Hangjie, LIU Jiahe, ZENG Ming
Department of Astronautics Engineering, Harbin Institute of Technology, Harbin 150080, China
Cite this article: 

GUAN Gongshun, LI Hangjie, LIU Jiahe, ZENG Ming. Investigation into Damage of Woven Stuffed Shield Impacted by High-Velocity Nonmetallic Projectile. Chinese Journal of Materials Research, 2016, 30(5): 329-335.

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Abstract  

A two-stage light gas gun is used to launch nonmetallic projectiles, which were heated cyclically before launch, impacting on woven stuffed shield. The damage model of woven stuffed shield impacted by projectiles of different materials was acquired. The effect of cyclic heating of nonmetallic projectile on the fragmentation characteristics of the projectile and the damage of woven stuffed shield was investigated. The nonmetallic projectile was heated cyclically in a temperature range of 20-150℃. Impact velocities of projectile varied in a range of 1.52-3.26 km/s. The impact angle was 0°. The results indicate that the perforation diameter of thin Al-plate impacted by ceramic projectile is smaller than that by Al-sphere when the size of the two projectiles are the same. The cyclically heated projectiles of ceramic and nylon can cause larger center impact perforations of woven stuffed bumper. Furthermore, the cyclic heating could enhance the damage capability of ceramic projectile but weaken that of nylon projectile on woven stuffed shield.

Key words:  inorganic non-metallic materials      non metallic projectile      cyclic heating      high-velocity impact      woven bumper      damage     
Received:  11 June 2015     
ZTFLH:  V423.41O347  
Fund: *Supported by National Nature Science Foundation of China No.11172083
About author:  **To whom correspondence should be addressed, Tel: (0451)86417978, E-mail: hitggsh@163.com

URL: 

https://www.cjmr.org/EN/10.11901/1005.3093.2015.334     OR     https://www.cjmr.org/EN/Y2016/V30/I5/329

Fig.1  Woven stuffed shield in the test
No. Projectile Stuffed wall Velocity
/kms-1
Temperature
/℃
Materials Diameter
/mm
Processing times Materials Processing times
1 Ceramic 4 0 Al-mesh 5 3.26 20
2 Nylon 5.56 0 Al-mesh 5 3.09 20
3 Nylon 5.56 0 Basalt fiber cloth 5 3.13 20
4 Ceramic 4 0 Basalt fiber cloth 5 3.25 20
5 Ceramic 4 0 Al-mesh 5 1.69 20
6 Ceramic 4 0 Basalt fiber cloth 5 1.63 20
7 Nylon 5.56 0 Al-mesh 5 1.67 20
8 Nylon 5.56 0 Basalt fiber cloth 5 1.60 20
9 Ceramic 4 5 Al-mesh 5 3.01 20
10 Ceramic 4 5 Basalt fiber cloth 5 3.01 20
11 Ceramic 4 5 Basalt fiber cloth 5 1.69 20
12 Ceramic 4 5 Al-mesh 5 1.68 20
13 Nylon 5.56 5 Al-mesh 5 3.01 20
14 Nylon 5.56 5 Basalt fiber cloth 5 3.05 20
15 Nylon 5.56 5 Al-mesh 5 1.52 20
16 Nylon 5.56 5 Basalt fiber cloth 5 1.68 20
Table 1  Materials and test conditions of non metallic projectiles and woven stuffed walls
Fig.2  Damage results of woven stuffed shields impacted by high-velocity ceramic projectile (a) no cyclic heating, vp=1.69 km/s; (b) cyclic heating, vp=1.68 km/s; (c) no cyclic heating, vp=3.25 km/s; (d) cyclic heating, vp=3.01 km/s
Fig.3  Damage results of woven stuffed shields impacted by high-velocity nylon projectile (a) no cyclic heating, vp=1.67 km/s; (b) cyclic heating, vp=1.52 km/s; (c) no cyclic heating, vp=3.13 km/s; (d) cyclic heating, vp=3.05 km/s
Fig.4  Relationship between perforation size of thin AL-plate and kinetic energy (a) variation of (Dh-dp) with Ei, (b) variation of (Dh-dp)/dp with Ei
Fig.5  Relationship between perforation diameter of thin AL-plate impacted by ceramic projectile and impact velocity
Fig.6  Relationship between perforation diameter of thin AL-plate impacted by nylon projectile and impact velocity
Fig.7  Relationship between damage of stuffed wall and impact velocity for ceramic projectile (a) variation of DFLT or DLLT with vp, (b) variation of DFXT or DLXT with vp
Fig.8  Relationship between damage of stuffed wall and impact velocity for nylon projectile (a) variation of DFLN or DLLN with vp, (b) variation of DFXN or DLXN with vp
Fig.9  Relationship between damage of rear wall and impact velocity for ceramic projectile (a) variation of HBT or DT with vp, (b) variation of D99T with vp
Fig.10  Relationship between damage of rear wall and impact velocity for nylon projectile (a) variation of HBN with vp, (b) variation of D99N with vp
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