We conducted a systematic study on pressure-dependent electrical, vibrational and structural properties of titanium ditelluride up to 43.4 GPa. The room-temperature resistivity shows a series of anomaly changes at around 6, 13 and 22 GPa. Low-temperature resistance measurement was also employed to b...

The systematic test and analysis of the spectral characteristics and color mechanism of the synthetic jadeite are carried out by using electron probe, X-ray powder diffraction, Fourier transform infrared spectroscopy, laser Raman spectra and UV-VIS absorption spectra and photoluminescence spectra.Th...

Transient resistance is one of the most important parameters in the process of electric explosion.The accurate description of the nonlinear time-varying characteristics of the exploding wire resistance is the key to the simulation of electric explosion, which determines the simulation precision.In o...

This paper introduces a novel ultra-high pressure device, double-beveled multilayer stagger-split die.This device consists of a double-beveled sector block cylinder, a discrete prestressed ring and a hoop ring.We explored the force situation of the double-beveled multilayer stagger-split die, and th...

In this study, the capsular carbon nanomaterials with large specific surface area are synthesized using gas phase detonation method doped with acetylene gas, oxygen and pentacarbonyl iron.The pre-experimental of the reaction for the thermal decomposition reaction of carbonyldiiron showed that the ir...

Based on the molecular structural mechanics and multi-scale method, the finite element model of graphene reinforced epoxy resin composite with different number of vacancy defects and Stone-Wales (S-W) defects was constructed by using the finite element commercial software ABAQUS.The effects of graph...

The fatigue analysis for a whole pipeline system is rather rare to date, while in this paper, we accomplished an integrated computational fatigue analysis of the pipeline system based on model constructing and fluid-solid coupling by using Workbench and nCode DesignLife method.And the high pressure ...

Based on the similar model test, the damage evolution and dynamic response law of anchored caverns with a crack under top explosion was studied by numerical analysis, and the influence of crack angle and length on the damage distribution and crown displacement of the anchor caverns was discussed.Wit...

Many factors can cause natural gas explosions, and it will lead to serious structural damages and human injures.This study is focused on the leakage of natural gas from underground pipe gallery.A case study has been made in a project of the circular island road in Pingtan comprehensive test.An under...

In order to study the meeting location of fragments and shock waves after fragmentation warhead explosions, ANSYS/LS-DYNA was first used to numerically calculate the explosion process of the fragmented warhead, and then the location where fragments meet shock wave was experimentally determined, vali...

According to the instantaneous detonation, under the minimal charge ratio (C/M) condition, we study that small-mass explosives drive mass load to move.The load driving speed is deduced under the charge conditions subjected to weak constraint and strong constraint.Under the weak constraint charge con...

When the bubble develops in shallow water between the free surface and the bottom, extremely complex phenomena of the free surface will be caused.The bubble motion characteristics are different from that in the free field.To explore its patterns, spark induced bubble experiments are carried out and ...

In order to investigate the armor penetration aftereffect of depleted uranium alloys liner, a series of aftereffect experiments are conducted using depleted uranium-Ni alloys liner.The results show that, a high-speed and high-temperature flaming grain bundle is formed after depleted uranium alloys j...

There is accumulation in the middle of the jets formed by the single cone liner in the annular shaped charge structure, and the length of the jet is limited before the fracture.The jet of the double cone liner takes both the high head speed formed by upper small angle cone liner and increscent effec...

To improve the performance of linear shaped charge jet, this study applies the truncated and auxiliary liner structure to the linear shaped charge.The three-dimensional finite element analysis software (LS-DYNA) was used to simulate the linear shaped charge jet formed with copper as the main liner a...

To enhance the protective capabilities of reactive armor, five different sizes of reactive armor with multi sandwich structure were designed and obtained.The first size of reactive armor added a layer of steel to the middle of the traditional reactive armor, and the second to fifth sizes of reactive...

Based on the existing double-layer flat-charge explosive reactive armor (ERA), we designed 4 different structures of double-layered wedge-charge ERA, and employed the LSDYNA-3D software to evaluate their ability of interfering with the jet.We analyzed the motion state of flying-plates, the velocity ...

In order to study the influence of impact points in the midline of a double-wedge charge reaction armor on jet interference, their abilities to interference jet are evaluated by the simulation software LSDYNA-3D.The important results such as the movement state of the flyer during the penetration pro...

In order to investigate the dynamic response of plates with preformed holes under internal blast load in the cabin model, the deformations of the plates with offset preformed holes and the plates with uniform preformed holes in the cabin model were experimentally investigated.The results are also co...

In this study, the influence of bulkhead perforation structure caused by half armor piercing warhead on the cabin burst effect is studied.LS-DYNA finite element software is used to simulate the internal explosion test of the small ship cabin with the help of reasonable material constitutive relation...

In the process of electromagnetic rail propulsion, the contact area temperature between armature and rails is one of the important indicators to measure contact state, which can characterize the degree of rail damage to some extent and affect the launch efficiency.Corresponding simulation analysis a...

The aim of this work was to evaluate the effect of high pressure processing (HPP) with different holding time on the quality of pomfret (Pampus argenteus) during cold storage. Different processing times (10, 20 and 30 min) at 200 MPa were applied and HPP treated pomfret were compared with untreated ...