High pressure mechanics has set off a great wave of interdisciplinary researches among materials science and geosciences, providing solutions for the synthesis of novel materials with high challenge, improvement of mechanical properties of materials, and understanding of the seismic anisotropy and g...

The pressure required for the metallization of solid hydrogen exceeds 400 GPa, thereby presenting a formidable challenge for its experimental preparation and characterization. Here, we systematically explore the structures and properties undergone by solid hydrogen under non-hydrostatic pressure con...

Tellurium-based double perovskites offer the advantages of exceptional photoelectric properties, adjustable band gaps, and environmental friendliness, rendering them a promising class of light-absorbing materials. To further fine-tune the relevant attributes of these double perovskites, a comprehens...

The dynamic behavior of materials at mesoscales under intense dynamic shock loading has always been the research focus of dynamic compression science. Unfortunately, for a long time, due to the lack of in-situ dynamic multi-scale diagnostics, the progress has been slow. The emergence of advanced X-r...

Ice giants such as Uranus and Neptune are numerous in the universe. Understanding the internal structure and local reaction processes of ice giants is of great significance for establishing a unified planetary evolution system. In recent decades, with the continuous development of simulation methods...

The effect of pressure on the glass transition temperature and the supercooled liquid region of amorphous selenium (a-Se), which was prepared through melting quenching, was investigated. The glass transition temperature ${T}_{\text{g}}$ and crystallization temperature T_x were determined through th...

Carbon fibre reinforced composites have an important role in rail transportation, aerospace and other fields due to their excellent properties such as lightweight and high strength. However, as a surface structure material for high-altitude vehicles, carbon fibre reinforced composites suffer from me...

In order to study the dynamic response of the structure under explosion load in negative pressure environment, the negative pressure explosion experiments were carried out for the fixed supported steel plate, which is as a simplified unit of the protection project. The deformation law, and the ultim...

To further reveal the crack propagation law and failure characteristics of fissured sandstone with different moisture states, the uniaxial compression tests of steeply dipping fissured sandstone were carried out with different moisture states of dry, natural, and saturated. Acoustic emission (AE) an...

Conventional explosions are accompanied by significant electromagnetic effects, which can interfere with explosion testing and also serve as a non-contact means of testing explosion shock waves. The study of explosive electromagnetic effects has important engineering application value. A measurement...

The uniaxial compressive strength of cemented paste backfill (CPB), as an important indicator of their mechanical properties, is usually determined by traditional mechanical tests. In the proposed model, the whale optimization algorithm (WOA) with global optimization capacity was used to tune the hy...

To investigate the alumina ceramics’ crack evolution process under impact loading, a numerical simulation of dynamic Brazilian splitting for platform disc ceramics was carried out by the discrete element method. The discrete element particle flow software was adopted to establish the numerical simul...

Through numerical simulation, the relation between the crack propagation during deep rock blasting and the decoupling charge coefficient under the conditions of in-situ stress or not was studied. The simulation results showed that the initial ground stress has a great influence on the generation and...

To investigate the effect of hexamethylenetetramine content on the performance of ammonium-amine explosives, five groups of ammonium-amine explosives were prepared using hexamethylenetetramine with mass fractions of 5.5%, 6.5%, 7.5%, 8.5% and 9.5%. The cross-linking time, detonation velocity and the...

In this paper, the interaction between 2H₂+O₂+nAr gas-phase detonation waves with different reactivities and cylindrical obstacles was investigated by experiments. Piezoelectric pressure sensors were flushed-mounted on the top wall of the channel to record pressure time histories, from which the det...

In order to ensure the safety and stability of sand-mudstone interbedded rock slope under blasting vibration, it is necessary to clarify the attenuation law of blasting vibration in sand-mudstone interbedded rock slope. Based on the first-stage project of Pinglu Canal Youth Hub, through the field bl...

The blasting load generated by the blasting excavation of the tunnel has an impact on the adjacent building structure. In order to study the influence of the blasting excavation of the post-construction tunnel on the adjacent tunnel, this paper takes the E60 highway tunnel in Georgia as the engineer...

Tunnel structures in service usually have initial cracking damage, which can affect the tunnel structure when exposed to explosive. In this paper, the secondary damage and response law of the subway tunnel with crack under explosion were simulated by using the material point method with multistage b...