超高速撞击Kevlar纤维布填充防护结构研究

张宝玺; 哈跃; 邓云飞; 庞宝君

doi:10.11858/gywlxb.2013.01.015

超高速撞击Kevlar纤维布填充防护结构研究

doi: 10.11858/gywlxb.2013.01.015

哈尔滨工业大学航天学院，黑龙江哈尔滨 150001

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通讯作者:
哈跃 E-mail:hayue@hit.edu.cn

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出版历程
- 收稿日期: 2011-07-13
- 修回日期: 2011-08-15
- 发布日期: 2013-02-15

Optimal Structural Design of Stuffed Shields with Kevlar Fiber Clothes against Hypervelocity Impact

School of Astronautics, Harbin Institute of Technology, Harbin 150001, China

摘要

摘要: 利用二级轻气炮，对Kevlar纤维布填充Whipple防护结构进行了超高速撞击实验研究。基于Nextel/Kevlar撞击极限曲线，分析了单层及双层Kevlar纤维布填充防护结构的防护性能以及填充材料、舱壁的损伤情况。实验表明，Kevlar纤维布填充Whipple防护结构在低速区具有优良的防护性能。分层布局可改善Kevlar纤维布填充Whipple防护结构在低速区的防护性能。在低速区，Kevlar纤维丝主要依靠大量的塑性变形及断裂吸收弹丸的动能；在高速区，Kevlar纤维丝存在高温熔化及碳化现象，使弹丸破碎或熔化为更小的碎片或熔球，从而减轻对舱壁的损伤。
- 超高速撞击 /
- 填充Whipple防护结构 /
- Kevlar纤维布 /
- 防护结构
Abstract: A series of impact experiments are conducted to investigate the ballistic performances of stuffed Whipple shields with Kevlar fiber clothes using a two-stage light gas gun facilities. Based on the impact limit curve of Nextel/Kevlar stuffed Whipple shields, the protective performances of Kevlar stuffed Whipple shields, the damage morphology and mechanism of stuffed material and bulkhead are obtained and compared. The main results show as following: the stuffed Whipple shields with Kevlar fiber clothes have excellent protection performance at the low impact velocity; the double-layer packing structure can improve the protective performance. Kevlar fibers sufficiently absorb energy by plastic deformation and fracture when the impact velocity is low. In addition, high temperature melting and carbonization phenomenon appear in the hypervelocity region, which help break up and melt the projectiles that minimize the damage to cabin wall. This exploratory method provides us a useful way to make the ballistic performances of stuffed Whipple shields more perfect in space debris protection field.
- hypervelocity impact /
- stuffed Whipple shields /
- Kevlar fiber clothes /
- protect structure

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参考文献(11)

Whipple F L. Meteorites and space travel [J]. Astron J, 1947, 52: 131.

Schonberg W P, Tullos R P. Spacecraft wall design for increased protection against penetration by orbital debris impacts [J]. AIAA J, 1991, 29(12): 2207-2214.

Christiansen E L, Crews J L, Williamsen J E, et al. Enhanced meteoroid and orbital debris shielding [J]. Int J Impact Eng, 1995, 17(1/2/3): 217-228.

Christiansen E L. Advanced meteoroid and debris shielding concepts, AIAA PAPER 90-1336 [R]. USA: National Aeronautics and Space Administration, 1990.

Christiansen E L, Crews J L, Kerr J H, et al. Hypervelocity impact testing above 10 km/s of advanced orbital debris shields [J]. AIP Conf Proc, 1996, 370(1): 1183-1186.

DiCarlo J A, Yun H M. Modeling the thermostructural capability of continuous fiber-reinforced ceramic composites [J]. J Eng Gas Turbines Power, 2002, 124(3): 465-471.

Zhu D, Mobasher B, Subramaniam D R. Dynamic tensile testing of Kevlar 49 fabrics [J]. J Mater Civ Eng, 2011, 23(3): 230-239.

Pereira J M, Revilock D M. Ballistic impact response of Kevlar 49 and Zylon under conditions representing jet engine fan containment [J]. J Aerosp Eng, 2009, 22(3): 240-248.

Cheng M, Chen W, Weerasooriya T. Mechanical properties of Kevlar KM2 single fiber [J]. J Eng Mater Technol, 2005, 127(2): 197-203.

Piekutowski A J. Formation and Description of Debris Clouds Produced by Hypervelocity Impact [M]. Huntsville, USA: National Aeronautics and Space Administration, Marshall Space Flight Center, 1996: 223-238.

Piekutowski A J. Fragmentation-initiation threshold for spheres impacting at hypervelocity [J]. Int J Impact Eng, 2003, 29: 563-574.

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