Pressure engineering, as an efficient, continuous and reversible method in tuning structure, electric and optical properties, has been extensively used in study of materials. Two-dimensional materials and vdWs heterostructures exhibit intriguing physical properties, thanks to their interlayer coupli...

In this paper, the effects of high temperature and high pressure on single system and composite system of phosphogypsum were studied. By controlling the experimental conditions of high temperature and high pressure, the crystal morphology and mineral composition of different phosphogypsum systems at...

Dynamic friction characteristics of rock surface during impact are of great significance to investigations of seismic slip and other phenomena. Series of experiments on rock samples with inclined joint were conducted by the split Hopkinson pressure bar (SHPB) bundles device. Changes of surface rough...

In order to understand the specific process of α→β phase transition in FOX-7, some experimental methods are used to analyze the α→β phase transition, such as scanning electron microscope, THMSG600 heating stage instrument, and micro-confocal Raman spectrum. The changes of the crystal morphology duri...

Recent experimental studies at high temperature and high pressure reported a new iron oxide, FeO₂, which is stable from 74 GPa to the core-mantle boundary (CMB) pressure. Theoretical investigation also indicated that FeO₂ can react with He at high temperature and high pressure to form FeO₂He, which ...

The structural, elastic and electronic properties of double “A” layer MAX phase V₂Ga₂C under high pressure were studied by the first-principles calculations of density functional theory, and the stable state of V₂Ga₂C was predicted by using the Born stability criteria. The results show that V₂Ga₂C c...

The shockwave overpressure is one of the main damage elements of the high energy warhead, and many researchers have paid great attention on it. The spatial propagation boundary of shockwave is determined based on the method of image, division angle and overpressure normalization, and the theoretical...

Benefiting from laser preheating and axial magnetization, magnetized liner inertial fusion (MagLIF) has great application potential because it can effectively reduce the difficulties to realize the controlled fusion in theory. However, much attention has been paid to the improvement of laser energy ...

To study the static and dynamic tensile properties of soft polymer materials, experiments of a polyvinyl chloride (PVC) elastomer were carried out using the Instron-5943 universal testing machine and an improved split Hopkinson tensile bar (SHTB) experimental device. Stress-strain curves of the mate...

The quasi-static and dynamic compression properties of uniform and graded Gyroid structures were studied by using the commercial software ANSYS/LS-DYNA. The stress distributions, deformation mode, loading bearing and energy absorption abilities were analyzed accordingly. Some numerical material para...

Numerical simulation of the new thin-walled tube under the axial impact load was obtained by using LS-DYNA. The effects of the length of the upper thin-walled circular tube and the radius of the corrugated inducing groove on its crashworthiness and deformation mode were analyzed, and compared with t...

In order to study the anti-penetration performance of body armor against small tungsten sphere, combined with the experiment, the numerical model of small tungsten sphere penetrating into body armor was established by using the finite element analysis software LS-DYNA. On this basis, the penetration...

In order to understand the impact loading of Taylor impact process with head shape changes, numerical simulation studies were carried out on the basis of static and dynamic mechanical performance experiments and Taylor impact experiments, and the contact force, velocity and dimensions of the specime...

The glass fiber reinforced epoxy resin matrix composite shell was prepared by wet winding, the basic mechanical properties of the composite laminates were evaluated by tensile tests, double cantilever beams and three point end opening bending tests. And then the obtained strength and stiffness param...

To compare and analyze the macroscopic penetration characteristics and the microstructure characteristics of the 45 steel targets penetrated by Cu-Ni-Al reactive shaped charge jets and inert Cu shaped charge jets, we carried out penetration experiments of the Cu-Ni-Al and Cu shaped charge liner, and...

In order to study the response characteristics of ammunition under the venting structure, the cook-off system of ammunition and the venting structure were designed, and the influence of the venting structure on the response intensity of Composition B under the thermal stimulation was studied. The te...

The study of rockburst criterion is one of the most critical scientific problems in the rockburst research, and it is also the key to predict the occurrence of rockburst. Firstly, based on energy principle, rock strength and overall failure criterion, the classification evaluation system of rockburs...

The capturing and storage of green-house gas carbon dioxide are greatly significant to alleviation of green-house effect. The storage method producing carbon dioxide hydrate has advantages of high efficiency, large amount of storage, and easily transporting, etc. In order to provide suggestions for ...

The safety of power batteries have always restricted the promotion and development of electric vehicles. The axial compression of batteries is an important issue leading to damage. The safety performance of 18650 lithium-ion battery under axial compression was studied by experiments. The characters ...

In our study, ultra-high pressure was used to process quinoa protein, and how to exert influence on the emulsification of quinoa protein was investigated in terms of the ultra-high pressure holding pressure and time, and the protein content as well. Via the response surface method, the ultra-high pr...