Quasi-isentropic compression technique based on generalized wave impedance gradient flyer

CHEN Zibo; XIE Puchu; LIU Dongsheng; CHEN Wei; WANG Yonggang

doi:10.11883/bzycj-2018-0407

Volume 39 Issue 4

Mar. 2019

Turn off MathJax

Article Contents

Article Navigation > Explosion And Shock Waves > 2019 > 39(4): 041406

CHEN Zibo, XIE Puchu, LIU Dongsheng, CHEN Wei, WANG Yonggang. Quasi-isentropic compression technique based on generalized wave impedance gradient flyer[J]. Explosion And Shock Waves, 2019, 39(4): 041406. doi: 10.11883/bzycj-2018-0407

Citation:

CHEN Zibo, XIE Puchu, LIU Dongsheng, CHEN Wei, WANG Yonggang. Quasi-isentropic compression technique based on generalized wave impedance gradient flyer[J]. Explosion And Shock Waves, 2019, 39(4): 041406. doi: 10.11883/bzycj-2018-0407

Citation:

PDF( 5563 KB)

Quasi-isentropic compression technique based on generalized wave impedance gradient flyer

doi: 10.11883/bzycj-2018-0407

Key Laboratory of Impact and Safety Engineering, Ministry of Education of China, Ningbo University, Ningbo 315211, Zhejiang, China

Received Date: 2018-10-19
Rev Recd Date: 2018-12-27

Available Online: 2019-04-25

Publish Date: 2019-04-01

Abstract

Abstract

Based on the wave propagation characteristics of variable cross-section rods, a generalized wave impedance gradient flyer, termed the " bed of nails” was designed. The process of the generalized wave impedance gradient flyer impacting the sample was simulated by using the SPH algorithm of the LS-DYNA software. The wave profiles display a smooth increase of velocity, with no indication of a shock jump. The physical mechanism of the quasi-isentropic compression generation is attributed to the interaction from a series of approximately spherical waves with slowly rising front. The influences of impact velocity and geometric parameters of the flyer on the ramp wave loading characteristics were discussed in detail, which provide some useful information for the design and application of the generalized wave impedance gradient flyer. Selective Laser Melting, and an additive manufacture technique, were used to manufacture the " bed of nails” flyer. The experiments were performed at the impact velocities of 348 m/s using the 57 mm gas gun. The measured free surface velocity profile agrees well with the simulation results.
- generalized wave impedance gradient flyer,
- quasi-isentropic compression,
- SPH,
- additive manufacture technique

FullText(HTML)

References(14)

References

[1]	LORENZ K T, EDWARDS M J, JANKOWSKI A F, et al. High pressure, quasi-isentropic compression experiments on the Omega laser [J]. High Energy Density Physics, 2006, 2(3): 113–125. DOI: 10.1016/j.hedp.2006.08.001.
[2]	CHHABILADS L C, KMETYK L N, REINHART W D, et al. Enhanced hypervelocity launcher-capabilities to 16 km/s [J]. International Journal of Impact Engineering, 1995, 17(1−3): 183–194. DOI: 10.1016/0734-743X(95)99845-I.
[3]	THORNHILL T F, CHHABILDAS L C, REINHART W D, et al. Particle launch 19km/s for micro-meteoroid simulation using enhance three-stage light gas gun hypervelocity launcher techniques [J]. International Journal of Impact Engineering, 2006, 33(1−12): 799–811. DOI: 10.1016/j.ijimpeng.2006.09.015.
[4]	MARTIN L P, PATTERSON J R, ORLIKOWSKI D, et al. Application of tape-cast graded impedance impactors for light-gas gun experiments [J]. Journal of Applied Physics, 2007, 102(2): 023507. DOI: 10.1063/1.2756058.
[5]	YEP S J, BELOF J L, ORLIKOWSKI D A, et al. Fabrication and application of high impedance graded density impactors in light gas gun experiments [J]. Review of Scientific Instruments, 2013, 84(10): 103909. DOI: 10.1063/1.4826565.
[6]	柏劲松, 李蕾. 实现应变率为10⁵~10⁶ s⁻¹的阻抗梯度飞片复杂加载波形计算分析 [J]. 爆炸与冲击, 2015, 35(6): 792–798. DOI: 10.11883/1001-1455(2015)06-0792-07 BAI Jinsong, LI Lei. Computational analysis of complex loading waveforms of impedance gradient flyers with strain rate of 10⁵—10⁶ s⁻¹ [J]. Explosion and Shock Waves, 2015, 35(6): 792–798. DOI: 10.11883/1001-1455(2015)06-0792-07
[7]	沈强, 张联盟, 王传彬, 等. 梯度飞片材料的波阻抗分布设计与优化 [J]. 物理学报, 2003, 52(7): 1663–1667. DOI: 10.3321/j.issn:1000-3290.2003.07.020 SHEN Qiang, ZHANG Lianmeng, WANG Chuanbin, et al. Design and optimization of wave impedance distribution of gradient flyer materials [J]. Acta Physica Sinica, 2003, 52(7): 1663–1667. DOI: 10.3321/j.issn:1000-3290.2003.07.020
[8]	LUO G Q, BAI J S, TAN H, et al. Characterizations of Mg-W system graded-density impactors for complex loading experiments [J]. Metallurgical and Materials Transactions A, 2010, 41(9): 2389–2395. DOI: 10.1007/s11661-010-0309-0.
[9]	TAYLOR P, Goff M, HAZELL P J, et al. Ramp wave generation using graded areal density ceramic flyers and the plate impact technique [J]. Journal of Physics: Conference Series, 2014, 500: 142016. DOI: 10.1088/1742-6596/50/14/142016.
[10]	卢秉恒, 李涤尘. 增材制造(3D打印)技术发展 [J]. 机械制造与自动化, 2013, 42(4): 1–4. DOI: 10.19344/j.cnki.issn1671-5276.2013.04.001 LU Bingheng, LI Dichen. Development of Additive Manufacturing (3D Printing) Technology [J]. Mechanical Manufacturing and Automation, 2013, 42(4): 1–4. DOI: 10.19344/j.cnki.issn1671-5276.2013.04.001
[11]	张学军, 唐思熠, 肇恒跃, 等. 3D打印技术研究现状和关键技术 [J]. 材料工程, 2016, 44(2): 122–128. DOI: 10.11868/j.issn.1001-4381.2016.02.019 ZHANG Xuejun, TANG Sizhen, YAN Hengyue, et al. Research status and key technologies of 3D printing technology [J]. Materials Engineering, 2016, 44(2): 122–128. DOI: 10.11868/j.issn.1001-4381.2016.02.019
[12]	王礼立, 胡时胜. 锥杆中应力波传播的放大特性 [J]. 宁波大学学报, 1988, 2(1): 78–87 WANG Lili, HU Shisheng. Amplification characteristics of stress wave propagation in cones [J]. Journal of Ningbo University, 1988, 2(1): 78–87
[13]	罗鑫, 白二雷. 变截面杆共轴撞击数值分析及其应用前景 [J]. 高压物理学报, 2012, 26(6): 715–720. DOI: 10.11858/gywlxb.2012.06.018 LUO Xin, BAI Erlei. Numerical analysis of the common-axis impact of variable-section bar and its application prospect [J]. Journal of High Pressure Physics, 2012, 26(6): 715–720. DOI: 10.11858/gywlxb.2012.06.018
[14]	陶俊林, 张方举. 变截面弹丸在分离式Hopkinson压杆中的应用 [J]. 实验力学, 2003, 18(1): 137–140. DOI: 10.3969/j.issn.1001-4888.2003.01.025 TAO Junlin, ZHANG Fangju. Application of variable section projectile in separate Hopkinson pressure bar [J]. Experimental Mechanics, 2003, 18(1): 137–140. DOI: 10.3969/j.issn.1001-4888.2003.01.025