高压物理学报

Studies on Formation and Propagation of Failure Waves in Soda-lime Glass

ZHANG Yan-Geng, DUAN Zhuo-Ping, PI Ai-Guo, ZHANG Lian-Sheng, OU Zhuo-Cheng, HUANG Feng-Lei

2012, 26(3): 241-250. doi: 10.11858/gywlxb.2012.03.001

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Abstract:
A series of plate impact experiments were conducted for soda-lime glass specimens on a one-stage gas gun in order to investigate the so-called failure wave phenomena under different impact velocities. In each shot, four pieces of specimens with different thicknesses are impacted simultaneously and t...

Experimental Technique of Two-Stage Electric Gun

LUO Bin-Qiang, ZHAO Jian-Heng, SUN Cheng-Wei, MO Jian-Jun, HE Jia, ZHANG Xing-Wei, WANG Gui-Ji, TAN Fu-Li

2012, 26(3): 251-258. doi: 10.11858/gywlxb.2012.03.002

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Abstract:
A newly designed configuration based on an electric gun (namely two-stage electric gun) was used to launch metallic flyer, and dimension of 10 mm0.5 mm, 10 mm0.3 mm aluminum flyers can be accelerated to 300 m/s and 500 m/s, respectively. Using the two-stage electric gun, dynamic response of Zr-based...

Perforation Simulations of High-Strength Steel by Steel Core Bullets

XIE Heng, Lü Zhen-Hua

2012, 26(3): 259-265. doi: 10.11858/gywlxb.2012.03.003

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Abstract:
Material experiments were performed to identify dynamic constitutive model parameters for steel core of 7.62 mm39 mm bullets and N-1 high-strength steel. Highly detailed FE model of the projectile and steel target plate was built up. The J-C fracture rule for the target plate was modified and implem...

Three-Dimensional Numerical Investigation of Deformation and Instability of High-Density Bubble Induced by Incident and Reflected Shock Waves

ZHU Yue-Jin, DONG Gang, LIU Yi-Xin, FAN Bao-Chun

2012, 26(3): 266-272. doi: 10.11858/gywlxb.2012.03.004

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Abstract:
The three-dimensional deformation and instability of high-density spherical bubble induced by incident shock wave and its reflected wave were studied numerically by using large eddy simulation method. The computational model was validated by the experimental results. The emphasis was placed on the i...

Investigation of Residual Velocity of Aluminum Projectiles at Hypervelocity Impact on Woven of Basalt Fiber

HA Yue, GUAN Gong-Shun, CHI Run-Qiang, PANG Bao-Jun

2012, 26(3): 273-280. doi: 10.11858/gywlxb.2012.03.005

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Abstract:
In order to protect spacecraft against space debris impacts, it is a feasible direction to develop the shield with high strength fiber materials. The damage analysis of hypervelocity impact on high strength fiber woven is a key issue in the design of the space debris shielding, and the main content ...

Inactivation Kinetics of Blackberry -Glucosidase by Combined High Hydrostatic Pressure and Temperature Treatments

WEI Ben-Xi, MA Yong-Kun, MA Shan-Li, YAN Rui, ZHANG Long, BAI Jie

2012, 26(3): 281-288. doi: 10.11858/gywlxb.2012.03.006

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Abstract:
The inactivation kinetics of -glucosidase in blackberry were investigated at high hydrostatic pressure (300-600 MPa) combined with moderate temperature (35-55 ℃). Analysis of the obtained kinetic data revealed a dual-effect of combined pressure-temperature inactivation: the first one, designated as ...

Effect on the Near Field Shock Wave Pressure of Underwater Explosion of Aluminized Explosive at Different Initiation Modes

LI Jin-He, ZHAO Ji-Bo, TAN Duo-Wang, WANG Yan-Ping, ZHANG Yuan-Ping

2012, 26(3): 289-293. doi: 10.11858/gywlxb.2012.03.007

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Abstract:
The underwater explosion near field shock waves propagation process of aluminized explosive HLZY-1 were observed by SJZ-30 and GSJ-15 high speed streak cameras. The explosives were initiated at the end surface, the side and the center. The streak curves of near field shock waves were digitized, and ...

Modeling of Dynamic Tensile Fracture Accounting for Micro-Inertia Effect on Void Growth

WANG Huan-Ran, WANG Yong-Gang, HE Hong-Liang

2012, 26(3): 294-300. doi: 10.11858/gywlxb.2012.03.008

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Abstract:
Axisymmetric unit cell model calculations are used to study void growth in a material containing a periodic array of spherical voids under different loading rate rates. Numerical results show that: Micro-inertia is found to have a strong stabilizing effect on void growth process; (2) The growth rate...

Theoretical Model of Minimum Ignition Energy Prediction for Methane-Air Mixture

MA Qiu-Ju, ZHANG Qi, PANG Lei

2012, 26(3): 301-305. doi: 10.11858/gywlxb.2012.03.009

PDF (603)

Abstract:
The minimum ignition energy is one of the important properties to estimate the fatalness of combustible gases. To get a theoretical value of minimum ignition, a physical model of spark ignition of the combustible gases was established, and a minimum ignition energy prediction method of combustible m...

Research on Thermal Conductivity of Diamond with Cr, Ti Coating/Copper Composite Materials by Sintering under High Pressure

ZHANG Wen-Kai, PENG Fang, GUO Zhen-Tang, GUAN Jun-Wei, LI Rong-Qi

2012, 26(3): 306-312. doi: 10.11858/gywlxb.2012.03.010

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Abstract:
Cr or Ti is coated on diamond surface by magnetron sputtering, and diamond with active metal coating/copper composite materials is sintered under high temperature and high pressure. The experimental results show that the introduction of active metals enhances the bond strength between diamond and co...

Numerical Simulation Study of Parameter Sensitivity Analysis on Concrete HJC Model

CHEN Xing-Ming, LIU Tong, XIAO Zheng-Xue

2012, 26(3): 313-318. doi: 10.11858/gywlxb.2012.03.011

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Abstract:
Concrete is a widely used composite. The study of dynamic performance and anti-penetration effects on concrete is dependent on the numerical simulation, and the HJC model is often used in numerical simulations. On the basis of introduction about HJC model, parameter sensitivity analysis on HJC model...

Strong Shock-Compression of g-C3N4 Precursor for Direct Synthesis of -C3N4

MA Hai-Yun, LIU Fu-Sheng, LI Yong-Hong, ZHANG Ming-Jian, XUE Xue-Dong, WANG Jun-Li

2012, 26(3): 319-324. doi: 10.11858/gywlxb.2012.03.012

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Abstract:
Using a two-stage light gas gun and shock recovery technique, a series of experiments up to 40-65 GPa were carried out on the nitrogen-rich material of precursor g-C3N4. The powder X-ray diffractions (XRD) of recovered samples showed that the precursor g-C3N4 was stable under 51 GPa pressure, while ...

Double-Langmuir Probe Diagnostics of Plasma Produced by Hypervelocity Impact 2024-T4 Aluminum Target

TANG En-Ling, XIANG Sheng-Hai, YANG Ming-Hai, ZHANG Wei, HE Li-Ping, ZHAO Xin-Ying

2012, 26(3): 325-332. doi: 10.11858/gywlxb.2012.03.013

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Abstract:
In some types of plasma, there did not exist an electrode or reference point. The electrode or reference point was needed when applying a bias voltage to a Langmuir probe. To acquire thecharacteristic parameters of transient plasma generated by hypervelocity impact, diagnostic system was established...

Mechanical Properties of Hf-Based Metallic Glasses

WANG Yan-Po, SUN Bao-Ru, ZHAN Zai-Ji, WANG Wen-Kui

2012, 26(3): 333-337. doi: 10.11858/gywlxb.2012.03.014

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Abstract:
The quasi-static and dynamic compression tests for Hf44.5Cu27Ni13.5Ti5Al10 metallic glass were done by MTS810 and split Hopkinson pressure bar (SHPB) in the range of strain rate of 10-4-103 s-1. The compressive stress-strain curves were obtained under varied strain rate and the fracture morphologies...

Pressure-Iduced Phase Transition of LiAl5O8

WU Qi, PENG Fang, LI Qing-Hua, LEI Li, LI Rong-Qi

2012, 26(3): 338-342. doi: 10.11858/gywlxb.2012.03.015

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Abstract:
A phase transition concerning lithium aluminate oxide (LiAl5O8) was observed. High pressure synchrotron radiation X-ray diffraction was used to explore its structure in a diamond anvil cell up to 47.0 GPa. We found the two phases are coexisted over a very large pressure range in the experiments. Acc...

Stress Response of Food Microorganisms under High Hydrostatic Pressure

ZHANG Jing, ZHAO Feng, HU Xiao-Song, LIAO Xiao-Jun

2012, 26(3): 343-350. doi: 10.11858/gywlxb.2012.03.016

PDF (646)

Abstract:
As a novel non-thermal food processing technology, high hydrostatic pressure (HHP) is showing broad application in food industry. Compared to traditional technologies, this technology exhibits significant advantages in the retention of food quality, inactivation of microorganisms and enzymes. In thi...

Study on the Reaction of C60 under Shock Wave

ZHANG Hong-Chang, PENG Ru-Fang, JIN Bo, LIANG Hua, TAN Bi-Sheng, CHU Shi-Jin

2012, 26(3): 351-356. doi: 10.11858/gywlxb.2012.03.017

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Abstract:
Using detonation-driven flyer, the samples of C60 were shock loaded. For toluene extraction, the soot was examined by high performance liquid chromatography (HPLC). The results showed that most of C60 was decomposed, a small part was changed into polymer, high fullerene, endohedral and other carbon ...

In-situ Raman Study and Phase Transition of Gypsum under High Pressure

MA Yan-Ping, LI Fang-Fei

2012, 26(3): 357-360. doi: 10.11858/gywlxb.2012.03.018

PDF (546)

Abstract:
In-situ high-pressure Raman study of the gypsum was carried out from 0 to 35 GPa with a diamond anvil cell (DAC). The authors determined the pressure dependences of the Raman bands of gypsum. A new Raman peak 1 012 cm-1 in the stretching vibration of range is found at pressure of about 4.5 GPa, and ...

2012 Vol. 26, No. 3

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