The coexistence and interplay between spin, charge, orbital and lattice in electron correlated systems give rise to many interesting quantum phenomena, including unconventional superconductivity, colossal magnetoresistance, metal-insulator transition, topological phase transition, etc. While, as one...

The quantum material GaTa₄Se₈ has attracted a substantial amount of attention because it exhibits a variety of interesting physical properties, such as metallization, J_eff quantum state, and topological superconductivity, and moreover, it is a medium for resistive switch and electric storage. Howev...

In many thermoelectric materials, SnTe has the same crystal structure as PbTe, but does not contain heavy metal Pb, which has attracted extensive attention in recent years. At present, the thermoelectric properties of intrinsic SnTe are not particularly excellent. There are some disadvantages: a lar...

Using diamond anvil cell (DAC) technique and Raman spectroscopy, we have studied the stability of PbCO₃ at high pressure. Solid NaCl, mixture of methanol-ethanol-water (16∶3∶1) and methanol-ethanol (4∶1) were used as pressure transmitting medium. The highest pressure in this study reached up to 24.5...

The structural stability of gibbsite $\gamma$-Al(OH)₃ was investigated under high pressure and shear stress conditions by using a rotating diamond anvil cell (RDAC) combining with micro-laser Raman spectroscopy and micro-beam X-ray diffraction. As increasing pressure to 1.5 GPa and rotating to 180°...

Plate tectonic activity is closely related to the lithosphere and is the physical source of major geological activities such as earthquakes, but its dynamic mechanism is not clear. This paper will explore the force source mechanism of plate movement by analyzing the influence of magma solidification...

Py-FeO₂, Py-FeOOH and ε-FeOOH are important components of mantle and core-mantle boundary. Their physical evolution characteristics at high temperature and high pressure are important for understanding the composition, structure and dynamic process of mantle. The crystal structures and elastic prope...

In the high-temperature and high-pressure experiments, it is essential to know the pressure and temperature of sample as well as the temperature distribution inside sample chamber. Therefore, it is necessary to calibrate the pressure and temperature of the experimental assembly before using the high...

The dynamic fracture toughness of branch staggered laminated biomimetic composites was studied by three-point bending dynamic impact experiments and numerical simulations. Firstly, the branched staggered laminated shell-like composite specimens were designed and prepared. A brittle rigid material an...

The high-velocity impact tests were carried out on the basalt fiber cloth/Al-plate composite shields, the ballistic limit velocity was obtained in the range of ballistic impact velocity. The diameter of 2017 Al-sphere projectile was 3.97 mm, and the impact velocity of Al-spheres was varied between 1...

The dynamic response of unreacted solid TATB-based explosive PBX-14 under ramp wave compression up to 20 GPa was obtained with the magnetically driven loading technique and laser interferometry technique. The pressure-relative specific volume relationship and dynamic parameters, such as the high-pre...

Based on the Hashin 3D failure criteria, both stiffness degradation and interface delamination are adopted to model the damage evolution of the composites, a numerical study on the composite lattice sandwich and its foam-reinforce sandwich beams subjected to local impulsive load is performed to iden...

As a typical impact resistant bio-material, shell shows excellent properties such as light weight, high strength and high toughness. In this paper, the finite element model of nacre-like brick and mortar structure is constructed and its dynamic response under the impact load of drop hammer is numeri...

Investigation of the influence of helium bubbles on the dynamic strength has drawn continuous attention. In this article, the phase field method (PFM) is applied to investigate the evolution of helium bubbles at an early stage in shock-loaded aluminum based on its advantage to describe the interface...

Inspired by the microstructures of bamboo in nature, two new bionic honeycomb structures were designed based on topological derivation method by introducing inner tube and double diamond ribs on the basis of traditional round tube and hexagonal tube. The performances of the bionic honeycomb structur...

Fiber reinforced thermoplastic and metal laminates have received wide attention in the field of naval protection, due to the excellent impact resistance performance. Numerical study on the fiber reinforced thermoplastic and metal laminate was carried out, based on the dynamic response test data of t...

Inspired by the metal crystal structures, the improved face centered cubic (FCC) lattice material was designed. The finite element simulations were carried out through ABAQUS, both for body centered cubic (BCC) and FCC lattice materials subjected to quasi-static compression and dynamic impact (10−10...

Based on the detonation product state equation and the Rayleigh-Plesset equation, this paper proposed a numerical method for calculating the bubble pulsation period of underwater explosions. We can quickly calculate the bubble pulsation period of underwater explosions of different explosives. Compar...

To address the problem of the after-effect of the enhanced shaped charge jet penetrating armor, the cone-shaped flat-topped conical copper-aluminum double-layer composite charge structure was designed. Numerical simulation of the jet forming and penetration process of the steel-aluminum interval tar...

In order to study the effect of charge decoupling coefficients on the extent of granite blasting damage, a particle flow code (PFC) blasting simulation method with mixed “dynamic” and “quasi-static” loads is proposed based on the joint action of blast shock wave and detonation gas, and then the nume...