With the development of techniques in the ultrafast physics experiment, there is an urgent need to fabricate a diagnostic equipment with a sufficiently high temporal and spatial resolution to study the characteristics of high energy products. As the resolution of the currently used ultra-high speed ...

The total energy and enthalpy of bcc- and dhcp- Mo with different volumes were calculated using the generalized gradient approximation (GGA) within the framework of plane wave psudopotential density functional theory. Our calculated isotherms agree well with the previous results. Based on the compar...

In the present work, we investigated the crystal structure, electronic structure, optical properties and electrical properties of the wurtzite type ZnO oxide at exoteric pressures of 500 GPa based on the density functional theory ab-initio calculations framework. The results show that the lattice of...

Based on the experimental results of a drop-weight impact test on reinforced concrete beams, the damage visco-elastic constitutive model has been proposed to describe the dynamic behavior of reinforced concrete. In view of the influence of the rebar and the damage characteristics of the beam, the re...

The research on the expandable aimed warhead is expected to contribute a lot to the improvement of the damaging capability of the airborne missile due to the high efficiency of the warhead fragments' utilization. In this work we designed a prototype of this type of warhead based on its damaging mech...

An inverse numerical method based on the characteristic curve was presented for better understanding of the mechanical behavior of materials under ramp loading.Numerical verification, uncertainties propagation and application of the inverse calculation were performed.From the measured velocity profi...

In the present study we fabricated Al/Steel composite by explosive expansion in order to obtain a composite pipe with both good mechanical properties and fine anticorrosion properties. In our fabrication a metal detonation cord with high a detonation velocity was used as the energy source, and the w...

In our study the performance of projectiles' oblique penetration into concrete was investigated. Based on target and projectile separation, the decay function was constructed with the free-surface effect taken into consideration, and the semi-empirical resistance function was obtained, thus replacin...

Thin-walled structures have been widely used in engineering practice, and great attention has been paid to the study of local changes that occur in their material properties and thermal stress as they have a great influence on the structures' bearing capacity.In our study, the laser power density, i...

In this work we carried out an experiment to investigate the effects of positive high-voltage electric fields on the flame propagation and combustion characteristics of lean premixed CH₄/O₂/N₂ flames in a constant-volume combustion chamber when the excess air ratio is respectively 1.6 and 1.8.The re...

The influence of the input voltage, size of the exploding foil, and the covering material on the exploding characteristics of the micro-size exploding foil were investigated by our experiment.The results show that the exploding time span is mainly determined by the input voltage and the cross sectio...

Compared with the conventional rock breaking by high pressure water jet, the energy efficiency can be greatly improved by adding steel shots into the water jet.The transient nonlinear dynamics finite element simulation software was used to analyze the rock breaking process by steel shots, which was ...

Allyl isothiocyanate (AITC), a reaction product of glycosidase hydrolyzing glucosinolates in the extracts of purple cabbage pigment, causes an unpleasant odor in the purple cabbage pigment, which limits its application in food industry.We investigated the technology for removing AITC by HPCD (High P...