TATB (1, 3, 5-triamino-2, 4, 6-trinitrobenzene), as one of the typical high-energy insensitive explosives, has important research value in national defense and military applications. Based on the Science Challenging Program (SCP), this work provides a detailed overview of the research progress on ph...

HMX is a high-energy explosive with excellent performance and is widely used in weapons. The phase transition law of HMX, especially under non-hydrostatic pressure, is controversial. In this work, a high-pressure Raman experimental study of HMX crystals under non-hydrostatic pressure was carried out...

A ramp wave compression experiment of (100) RDX single crystal under 35 GPa was carried out with the magnetic driven 10 MA device and laser interferometry, and then the interface velocity data of RDX single crystal/LiF window were obtained. The experimental results show that the velocity wave profil...

The crystal structure, phase transition and microstructure changes of explosive crystals have important influence on the properties of explosives. In order to study the high temperature phase transition of HMX crystals and the effect of the cracks caused by them on ignition, we performed in situ hig...

At high temperature loading, the thermal expansion and solid-solid phase transition firstly occur in HMX-based PBXs prior to the melting and decomposition of HMX crystal, thereby inducing the abrupt change of mechanical and safety properties. A constitutive model integrating with several deformation...

The coal measures sandstones in hard rock roadways were collected as the research samples, and a modified dynamic and static combined split Hopkinson pressure bar (SHPB) system was adopted to perform one-dimensional cyclic impact compression tests with the axial pressure of 5, 15 and 20 MPa and the ...

Spall fracture is one of the most important issues in the study of dynamic damage for materials. The damage characteristics and mechanism show obvious phased rules with different loading strain rates. At present, the study on spallation characteristics, laws and mechanisms of materials under ultra-h...

Electronic interconnected conductive adhesive has a wide range of application prospects in portable electronic products. It is often subjected to drop impact conditions during service, resulting in a relatively high strain rate at the bonding point of tiny conductive adhesive. Therefore, the researc...

In order to study the dynamic response and damage of square steel tubular structural components under near-field multiple blast loads, the explosion resistance performance of square steel tubes is obtained from the number of equal parts, the charge mass ratio and the initiation time interval at the ...

The dynamic compression experiments of ZL101A aluminum alloy were carried out under room and high temperature conditions by using split Hopkinson pressure bar (SHPB) system and high temperature heating equipment. The dynamic compressive stress-strain curves under the conditions of strain rate range ...

The study on damage and fracture in superconducting Nb₃Sn is an indispensible part of understanding the origin of strain sensitivity in Nb₃Sn. In this paper, by using molecular dynamic simulations, the fracture and crack propagation behavior of single crystal Nb₃Sn with ideal lattice and with centra...

Bionic design structures have received wide attention for their excellent mechanical properties and potential applications in engineering fields. In the bionic context, a new horsetail bionic thin-walled structure is designed and its energy absorption characteristics under axial compression are inve...

Structural integrity is an important basis for the design and manufacture of hydraulic accumulator. In order to determine the maximum bearing capacity of an accumulator shell under internal pressure, the plastic limit load and failure location of the shell are studied based on elasto-plastic analysi...

In order to study the energy release law of a charge with a non-circular cross-sectional structure under the influence of initiation modes, the energy release characteristics of the charge with a non-circular cross-sectional structure under different initiation modes were calculated by AUTODYN simul...

In order to improve the design level of anti-explosion capability of protective structure of ships, it is necessary to reveal the influence of changes in typical structural parameters of ships on their damage characteristics. The trapezoidal cross-section girder, of which the size and structural cha...

In order to enable warhead to have multiple directional damage modes and to achieve a certain degree of controllable damage, a deformable directional fragment warhead with fan-shaped charge is proposed. It can realize an axial-expanding mode and an lateral-expanding mode. The AUTODYN software is use...

An explosion in the subway station will lead to huge losses of personnel and property. In order to study the response law of subway platform and surrounding rock of a subway station project in Shanghai under the action of solid explosive explosion, HJC model is embedded in the open source material p...

In order to study the influence law and degree of premixed gas length, pipeline spacing, pipeline thickness and pipeline yield strength on the failure of the adjacent pipeline under the action of natural gas explosion in the gas compartment of the utility tunnel, a three-dimensional model of the gas...

Deep coal seam has high geostress, high gas content and low permeability coefficient, which seriously threaten the safety and efficiency of coal production, so it is necessary to strengthen the permeability enhancement and improve the gas extraction rate. Hydraulic blasting has the characteristics o...

The fracture characteristic of mineral component interface refers to the stress, strain and other processes generated by the bonding interface under the action of external load. It is of great significance for studying the dissociation of component minerals and improving the efficiency of ore crushi...