高压物理学报

Development of Large Volume-High Static Pressure Techniques Based on the Hinge-Type Cubic Presses

WANG Hai-Kuo, HE Duan-Wei, XU Chao, GUAN Jun-Wei, WANG Wen-Dan, KOU Zi-Li, PENG Fang

2013, 27(5): 633-661. doi: 10.11858/gywlxb.2013.05.001

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Abstract:
The large volume press (LVP) becomes more and more popular with the scientific and technological workers in the high pressure area, because it could generate relatively higher pressure, provide better hydrostatic pressure and could be utilized in conjunction with in situ X-ray diffraction, neutron d...

Dynamic Responses of Alumina Microvoid Ceramics with High Porosity under Combined Pressure and Shear Impact Loading

XU Song-Lin, LIU Yong-Gui, WANG Dao-Rong, TAN Zi-Han, Zheng Hang

2013, 27(5): 662-670. doi: 10.11858/gywlxb.2013.05.002

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Abstract:
Based on one-stage light gas gun, series of experiments including oblique planar impact with inclination angles of 0~15 and impact velocity ranging from 68 to 201 m/s were carried out to investigate the responses of alumina microvoid ceramics with high porosity subjected to impact loading. Experimen...

Numerical Simulation of Al Sphere Fragmentation under High-Velocity Normal Impacting Aluminum Mesh Bumper

GUAN Gong-Shun, NIU Rui-Tao, PANG Bao-Jun

2013, 27(5): 671-676. doi: 10.11858/gywlxb.2013.05.003

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Abstract:
Numerical simulation of aluminum sphere projectile high-velocity impacting aluminum mesh bumper was conducted with Smoothed Particle Hydrodynamics (SPH) arithmetic of LS-DYNA. The relationship between the debris clouds characteristic of projectile and the impact position on aluminum mesh bumper was ...

Research on Model Parameters of Bullet Penetrating Gelatin

LIU Kun, WU Zhi-Lin, XU Wan-He, MO Gen-Lin

2013, 27(5): 677-684. doi: 10.11858/gywlxb.2013.05.004

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Abstract:
Based on the 2-D motion model of bullet penetrating gelatin, a function of the drag coefficient, the lift coefficient, the roll moment coefficient and the yaw damping torque coefficient derivative which is related to the bullet shape is established. Based on the 7.62 mm bullet, five kinds of bullets...

Study on Laws of Explosive Driven Behaviors of Aimed Warhead

GENG Di, MA Tian-Bao, NING Jian-Guo

2013, 27(5): 685-690. doi: 10.11858/gywlxb.2013.05.005

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Abstract:
The present numerical study is to investigate the explosive driven behaviors to the flight velocity and flight area of all the fragments of evolvable aimed warhead, and the propagating style of the detonation wave of the three-dimensional model. The results of numerical simulation demonstrate that t...

Dynamic Processes of Detonation Waves Propagating through a 60 Smooth Pipe Bend

LI Jian, ZHAO Hui, NING Jian-Guo

2013, 27(5): 691-698. doi: 10.11858/gywlxb.2013.05.006

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Abstract:
Implicit-explicit additive Runge-Kutta (ARK) methods and 5-th order weighted essentially non-oscillatory (WENO) schemes are employed to simulate on cellular detonation wave propagating through a smooth pipe bend with a 60 bending angle. A detailed elementary chemical reaction model comprised of 9 sp...

Effect of Face Sheet Thickness on Dynamic Response of Aluminum Foam Sandwich Panels under Blast Loading

ZHANG Pei-Wen, LI Xin, WANG Zhi-Hua, YAN Qing-Rong

2013, 27(5): 699-703. doi: 10.11858/gywlxb.2013.05.007

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Abstract:
Dynamic response of aluminum foam sandwich panel under blast loading was simulated by LS-DYNA3D. Influence of core and face sheets thicknesses of aluminum foam sandwich panels on the deformation and energy absorption was investigated. The core layer compression, the center deflection of the back pan...

Dynamic Buckling of Underground Flat-Closure Cylindrical Shells under Explosion Loads

JI Chong, ZHANG Chuan, LONG Yuan, XIE Xing-Bo, LIU Qiang

2013, 27(5): 704-710. doi: 10.11858/gywlxb.2013.05.008

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Abstract:
Investigation of dynamic response of the underground oil storage facility subjected to explosion loads is an important problem. The oil tank can be predigested as a flat-closure cylindrical shell structure. Considering the stress characters of underground cylindrical shells, the amendatory Winkler m...

Numerical Simulation of Loading Cylindrical Shell by Explosive Rods (Ⅲ): Fidelity for Simulating X-Ray Mechanical Effects

MAO Yong-Jian, LI Yu-Long, CHEN Ying, HUANG Han-Jun, WANG Jun-Ping

2013, 27(5): 711-718. doi: 10.11858/gywlxb.2013.05.009

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Abstract:
According to the prior uncoupling analysis and utilizing the Rotation-Superposition Method, a large number of numerical experiments for loading cylindrical shells by explosive rods were performed. The average strain difference at three typical locations was defined as the index for evaluating the te...

Theoretical Prediction Model of Critical Energy for Direct Detonation Initiation in H2-O2/Air Mixtures

ZHANG Bo, BAI Chun-Hua

2013, 27(5): 719-724. doi: 10.11858/gywlxb.2013.05.010

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Abstract:
Based on the critical tube diameter and detonation cell size data in H2-O2/Air mixtures, the piston work done model was used to predict their critical energies of direct initiation. The good agreement is found by comparing the theoretical predicted critical energies with those measured in the experi...

Comparison of Coupled Level Set Methods for Interface Treatment

WANG Xing, MA Tian-Bao, HAO Li

2013, 27(5): 725-730. doi: 10.11858/gywlxb.2013.05.011

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Abstract:
The coupled Level Set (LS) method algorithm of medium interface treatment was studied. Advantages and disadvantages of different methods in medium interface treatment process were given by comparing different solution of rotating flow and shearing flow, and the reason is analyzed. Particle Level Set...

Study of the Interaction between Shock and Pool in Cold Shock Extinguishing System

JIANG Yao-Gang, MA Hong-Hao, SHEN Zhao-Wu, FAN Zhi-Qiang, WANG Quan

2013, 27(5): 731-737. doi: 10.11858/gywlxb.2013.05.012

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Abstract:
In order to evaluate the influence of shock wave formed by the explosion of cold shock extinguishing bomb on the extinguishing effect, shock wave formed by explosion dispersion of different extinguishing mediums was observed by schlieren experiment apparatus. The propagation law of shock on the inte...

Center Shift Phenomenon of the Characteristic Curves for Exchange-Bias Bilayers under External Stress

GUO Zi-Zheng, HU Xu-Bo, LUO Zhi-Huan

2013, 27(5): 738-744. doi: 10.11858/gywlxb.2013.05.013

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Abstract:
Focusing on the center shift phenomenon of the coercivity curves and the exchange bias field curves, the dependences of the exchange bias on 0, the angle of external field orientation, in ferromagnetic/antiferromagnetic bilayers are studied in the cases that , the angle between the stress field and ...

Study on the Deflagration Process of Simulated Diesel Oil Tank

ZHU Ying-Zhong, LU Chang-Bo, An Gao-Jun, XIE Li-Feng

2013, 27(5): 745-750. doi: 10.11858/gywlxb.2013.05.014

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Abstract:
In order to study the deflagration characteristics of diesel oil ignited by external energy, tests were carried out without any restraints to observe the ignition and explosion process of the oil tank using thermal imager and high-speed camera. Relationship between minimum ignition energy of the die...

Experimental Study and Numerical Simulation on MEFP Based on VESF Initiation

YANG Wei-Ling, JIANG Chun-Lan, WANG Zai-Cheng, XU Jun-Feng

2013, 27(5): 751-756. doi: 10.11858/gywlxb.2013.05.015

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Abstract:
A kind of charge structure for multiple explosive forming projectile is put forward to improve the directional destruction effect on targets. The plane wave produced by shock initiation and initiation styles effecting on damage ability are simulated by LS-DYNA and tested. Results show that MEFP char...

Numerical Analysis of Magnetic-Structural Coupling for Electromagnetic Rail Launcher Based on Contact Algorithm

YIN Dong-Mei, LI Bao-Ming

2013, 27(5): 757-762. doi: 10.11858/gywlxb.2013.05.016

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Abstract:
Aiming at the loading problem of electromagnetic force in structural analysis for the electromagnetic launcher and the untrue phenomenon obtained by common node method, a contact algorithm mixing multi-point constraints with augmented Lagrangian is proposed for numerical analysis of 2D magnetic-stru...

Experimental Study on Detonation of Small Vehicle-Wheel Two-Stage Light Gas-Gun Loading System

YU Chuan, PANG Yong, CAO Ren-Yi, YU De-Shui, SUN Yong-Qiang, ZHANG Rong, YANG Gui-Hong, TONG Yan-Jin, SHI Shang-Chun, ZHU Zi-Biao, ZHANG Xu

2013, 27(5): 763-767. doi: 10.11858/gywlxb.2013.05.017

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Abstract:
Due to the requirements of detonation research, a two-stage light gas-gun system and corresponding measurement system has been designed. Using this two-stage light gas-gun system, RHT-901, JOB-9003 and TA01 explosives were impacted by a spherical and cylinder projectile through a steel plate in a se...

Effects of High Pressure Treatment on Micro-Mechanical Properties of 7075 Aluminum Alloy

WANG Hai-Yan, LIU Lin, CHEN Yan, ZHAO Jun, LIU Jian-Hua, ZHANG Rui-Jun

2013, 27(5): 768-772. doi: 10.11858/gywlxb.2013.05.018

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Abstract:
The hardness, elastic modulus and plastic deformation of the 7075 aluminum alloy before and after 4 GPa pressure treatment are measured by nano-indenter, and combined with the observation for the microstructure. The effects of high pressure treatment on micro-mechanical properties of 7075 aluminum a...

Thermal Aged Effects on Detonation Performance of JOB-9003 Explosive

WANG Jian, FU Huan, WEN Shang-Gang, TAN Duo-Wang, GAO Da-Yuan

2013, 27(5): 773-777. doi: 10.11858/gywlxb.2013.05.019

PDF (522)

Abstract:
Based on the aged solid high explosive, a series of experiments were performed to study the influence of thermal aged on the detonation performance for JOB-9003 explosive. The physical and detonation performances were contrasted for the new and aged explosive samples. The results indicated that the ...

Numerical Study of Metal Perturbation Growth

PAN Hao, WU Zi-Hui, HU Xiao-Mian, YANG Kun

2013, 27(5): 778-784. doi: 10.11858/gywlxb.2013.05.020

PDF (580)

Abstract:
The process of metal perturbation growth includes complex material dynamic response like great distortion, high strain rate and high pressure loading, etc. The modified Smoothed Particle Hydrodynamics (SPH) combining with dynamic constitutive behavior of metal wass used to simulate the perturbation ...

Study on the Extraction of Essential Oil Rich in Nootkatone from Pomelo Peel by High Pressure Processing

WU Yan-Mei, CHEN Qin-Qin, GAN Zhi-Lin, WANG Ji-En, NI Yuan-Ying

2013, 27(5): 785-792. doi: 10.11858/gywlxb.2013.05.021

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Abstract:
In order to explore the effects of high pressure processing on the extraction of essential oil rich in nootkatone, the citrus Changshan-huyou peels are used as the experiment material. Based on the single factor experiments, 4 main parameters, such as pressure (200-600 MPa), holding pressure time (5...

2013 Vol. 27, No. 5

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