On the basis of the compressible gasket model presented by Wakatsuki, we investigated the squeezing behavior of a pyrophyllite gasket using a Bridgman type high pressure apparatus with an anvil top diameter of 20 mm.A series of data including the critical thickness, the elastic region diameter, the ...

To investigate the penetration performance of segmented rods against targets, a series of numerical simulations were conducted to research the penetration performance of tungsten alloy segmented rods with various configurations and their corresponding continuous rods into semi-infinite thick 4340 st...

The formation processes of the radial shaped charge jet with different modes of initiation—center-point initiation, endpoint initiation and two-side symmetric initiation—were simulated using LS-DYNA finite element code.Our calculated results show that, comparatively speaking, the head velocity of th...

We first deeply analyzed the reason why the exact Riemann sovler, MFCAV (Multi fluid channel on averaged volume) Riemann solver and Dukowicz Riemann solver cannot be applied directly to the compatible Lagrangian method and then, by introducing a new general nodal solver, we successfully applied the ...

The terminal-sensitive ammunition fitted with a central feedback layout for millimeter wave sensitive system needs to be embeded with some sensitive devices in the charge of EFP (Explosively formed penetrator) warhead, resulting in changing the charge structure, affecting observably the detonation w...

One dimensional plate micro-spall impact experiments were performed on two samples of melted tin with different surface roughness using our own newly developed momentum device to measure the momentum of the ejecta at different positions and moments.Using the Autodyn Smooth Particle Hydrodynamics (SP...

According to Lenz's law, to prevent the drive coil current from decreasing during the launching process of coilgun, the magnetic field generated by the armature eddy current is in the same direction with the drive coil.And affected by the capture effect, the armature will induce a deceleration force...

Based on the control principle for exposure time of the ultra high speed framing camera, we examined the errors in the measurement of the gating time using a CCD to record the time-delay produced by the ultra-fast laser pulse and the fiber array, from pserpectives of the fiber cutting precision and ...

The effects of 100, 200 and 500 MPa high hydrostatic pressure (HHP) treatments on spinach thylakoid membrane chlorophyll content, soluble protein content, chlorophyll absorption spectra, chlorophyll emission and excitation fluorescence spectra, protein fluorescence spectra were assessed in this stud...

The effects of high pressure treatment on enzymatic hydrolysis of casein hydrolyzed by trypsin and antioxidant activities of protein hydrolysates were investigated.Based on our measured data of hydrolysis (DH), DPPH radical, superoxide anion radical, hydroxyl radical scavenging activities and reduci...

Ultra-high pressure (UHP) treatment, as a burgeoning non-thermal food-processing technology, is convenient and promises great potentialities for application in food industry.We selected 3 representative complex seasonings, composite soybean paste, composite sweet soybean paste and composite sesame p...