高压物理学报

Application of ALE Multi-Material Formulation for Blast Analysis of Glass Curtain Wall

DENG Rong-Bing, JIN Xian-Long, CHEN Jun, SHEN Jian-Qi, CHEN Xiang-Dong

2010, 24(2): 81-87 . doi: 10.11858/gywlxb.2010.02.001

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Abstract:
The multi-material arbitrary lagrangian-eulerian (ALE) formulation and the penalty-based coupling approach were applied to simulate the air explosion and the interaction between explosive blast and curtain wall in resistance test of curtain wall by using LS-DYNA software. The dynamic behavior of gla...

Experimental Research on Underwater Explosion Energy Output of Explosive

MU Jin-Lei, ZHU Xi, LI Hai-Tao, HUANG Xiao-Ming

2010, 24(2): 88-92 . doi: 10.11858/gywlxb.2010.02.002

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Abstract:
In order to understand the energy output characteristics for underwater explosion of explosive, especially the decay law of shock wave energy along with the distance, the efficient shock wave energy per unit mass was researched. In traditional empirical formulas, it satisfies the similarity law. The...

Perforation of Fully-Clamped Thick Metallic Plates Struck Normally by Conical-Nosed Projectiles

SUN Wei-Hai, WEN He-Ming

2010, 24(2): 93-101 . doi: 10.11858/gywlxb.2010.02.003

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Abstract:
Simple analytical equations are given to predict the perforation of fully-clamped thick metallic plates struck normally by rigid conical-nosed projectiles over a wide range of velocities based on the assumption that the deformation is localized and that the impact energy is dissipated only by penetr...

Research on Deformation Shape of Deformable Warhead

GONG Bai-Lin, LU Fang-Yun, LI Xiang-Yu

2010, 24(2): 102-106 . doi: 10.11858/gywlxb.2010.02.004

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Abstract:
Basing on the detonation theory, the structure of the deformable warhead was simplified to be double layer cylindrical shells under the detonation. Plastic hinges were introduced into the loading section of the shell, which contacted with the deforming charge, and the deforming charge was divided in...

Experimental Study on Phase Transition and Spall Fracture in FeMnNi Alloy under Shock Pressure

LI Qing-Zhong, CHEN Yong-Tao, HU Hai-Bo, XU Yong-Bo

2010, 24(2): 107-112 . doi: 10.11858/gywlxb.2010.02.005

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Abstract:
By means of velocity interferometer system for any reflector (VISAR), X-ray diffraction (XRD) and scanning electron microscope (SEM), phase transition and spalling behavior of the FeMnNi alloy were studied through symmetric impact and reverse impact experiments. The FeMnNi alloy experiences a phase ...

Structural Stabilities and Optical Properties of BaX (X=S, Se and Te) under High Pressure

HAO Ai-Min, YANG Xiao-Cui, ZHAO Yu-Wei, LIU Xin, SONG Ai-Jun, ZHANG Wei-Guo, XIN Wei

2010, 24(2): 113-119 . doi: 10.11858/gywlxb.2010.02.006

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Abstract:
An investigation on the structural stabilities and optical properties of BaX (X=S, Se and Te) under high pressure was conducted using first-principles calculations based on density functional theory. The results show that the sequence of the pressure-induced phase transition of these compounds is fr...

Calculation of the Hugoniot of Silicon Rubber Foam

WANG Qing-Song

2010, 24(2): 120-124 . doi: 10.11858/gywlxb.2010.02.007

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Abstract:
Based on the pore collapse energy model, a new thermodynamic equation of state was derived to predict and describe the Hugoniot behavior of the silicon rubbers foam with different initial states. The model was tested on the silicon rubbers foam with initial densities of 0.52 g/cm3 and 0.92 g/cm3, re...

Effects of 3 GPa Pressure Treatment on the Thermal Expansion of Cu-Zn Alloy

WANG Hai-Yan, LIU Lin, PENG Gui-Rong, LIU Jian-Hua

2010, 24(2): 125-128 . doi: 10.11858/gywlxb.2010.02.008

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Abstract:
The coefficients of thermal expansion of Cu-Zn alloy between 25～700 ℃, which was before and after 3 GPa high-pressure treatment, were measured by the DIL402C thermal expansion instrument. In addition, the metallurgical microscope, X-ray diffraction (XRD), and differential scanning calorimetry (DSC) ...

The Effect of Dynamic High Pressure Microfluidization on the Activity of Papain

LIU Wei, ZHONG Ye-Jun, LIU Cheng-Mei, XIE Ming-Yong, GUAN Bin, YIN Man, WANG Qian, CHEN Ting-Ting

2010, 24(2): 129-135 . doi: 10.11858/gywlxb.2010.02.009

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Abstract:
The effect of dynamic high pressure microfluidization (DHPM) on the activity of papain had been investigated, and the molecular conformation changes of papain had been detected by fluorescence spectra. The results showed that after DHPM (120～180 MPa) treatment, the enzyme activity decreased in diffe...

Inactivation Effects of Coprinus Comatus Inoculated with Bacterial Spores by High-Pressure Thermal Processing

WANG Biao-Shi, LI Bian-Sheng, ZENG Qing-Xiao, HUANG Juan, RUAN Zheng, LI Lin

2010, 24(2): 136-142 . doi: 10.11858/gywlxb.2010.02.010

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Abstract:
The combination effect of high hydrostatic pressure and moderate heat on the inactivation effects of coprinus comatus inoculated with bacterial spores was investigated. The results showed that two bacterial spores (Bacillus coagulans and Bacillus stearothermophilus) had a much higher resistance in c...

Effects of High Pressure Treated Seeds on the Growth and Development of Watermelon

LI Yu-Ge, SU Lei, LI Suo-Ping, HONG Shi-Ming, LI Hai-Tao, ZHAO Xiao-Wei, HUO Zhi-Bang, LI Guo-Shen

2010, 24(2): 143-153 . doi: 10.11858/gywlxb.2010.02.011

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Abstract:
By using the statistical significance test of sample rate, t-test and one-way analysis of variance (ANOVA), the effects of high pressure treated seeds on the emergence rate, chlorophyll content, peroxide enzyme activity, morphology and structure of cotyledon, average weight per watermelon and sugar ...

Experimental and Theoretical Investigation on Laser Supported Detonation Waves in Air

CHEN Lang, LU Jian-Ying, FENG Chang-Gen

2010, 24(2): 154-160 . doi: 10.11858/gywlxb.2010.02.012

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Abstract:
For investigating the formation mechanism and propagation characteristics of the laser supported detonation waves, an experiment was designed and conducted. The laser supported detonation waves were generated in air atmosphere by focusing a 10.6 m microsecond pulse from a CO2 laser. In the experimen...

2010 Vol. 24, No. 2

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