High pressure techniques have been introduced to nanomaterials research for about three decades. Most of the studies, especially in the earlier time, were mainly X-ray diffraction (XRD), Raman and infrared spectroscopy investigations on the structural transition and equation of state. In recent year...

Graphene oxide (GO) was evenly dispersed in epoxy resin, and vacuum-assisted resin transfer molding was used to prepare reinforced carbon fiber composite materials. Different concentrations (0, 0.03%, 0.07% and 0.10%) were studied tensile properties and micro-adhesive properties of graphene oxide (G...

Based on equations of motion and the generalized Maxwell constitutive model, this paper derives the dispersion and dissipation relations of one-dimensional viscoelastic local resonance and Bragg scattering type phononic crystals. The results show that, for the time-harmonic propagation, band gap doe...

The lattice structure is widely used in aerospace, military, and other fields due to its lightweight and excellent energy absorption. This article mainly studies the energy absorption of the bionic BCC (body-centered cubic) structure and discusses its influence by the cross-sectional morphology. In ...

The tightly wound solenoid is the core component of a cascade explosive cylindrical implosion magnetic flux compression device. We designed a solenoid cylinder with composite structure, and carried out two-cascade implosion magnetic flux compression experiment. It is known that the growth of interfa...

In order to improve the maximum bearing capacity of ordinary annual wheeled ultra-high pressure molds, a new spherical arc longitudinally split ultra-high pressure mold structure is proposed. Due to the spherical-arc structure, the circumferential tensile stress of the ultra-high pressure mold that ...

In order to investigate the antiknock performance of polyurea coated steel composite structures and the energy absorption mechanism of polyurea coatings, the 40 and 60 g TNT explosion loading tests were carried out for the uncoated, equal-face coating and back-explosion coating structures with equal...

As an effective structure system for resisting the compression, the nacre composite structure has random Voronoi structure at a microscopic level and good mechanical performance. In this study, a three-dimensional Voronoi model consisting of aluminum/vinyl composite structure was presented to invest...

Based on the Voronoi model of 2D anisotropic cellular materials, the uniaxial and multiaxial creep behaviors were systematically studied. A large number of numerical simulation results showed that the mechanical properties of the 2D anisotropic cellular materials are greatly dependent on the geometr...

In order to investigate the mesoscopic behavior of Al/PTFE reactive materials under shock loading, the shock response of Al/PTFE and Al/Ni reactive materials were investigated via numerical approaches. Two material samples were fabricated by ball mill mixing and cold isostatic pressing, and a Nano-C...

Inspired by the venation of Royal Water Lily leaves, we conducted numerical simulations on the quasi-static and dynamic compression of layered-gradient honeycomb using the finite element software ABAQUS. Then the relationship of the quasi-static compression plateau stress with the relative density, ...

In order to improve the trajectory stability of the projectile penetrating the steel target, a split penetrator was designed. Through LS-DYNA simulation, the trajectory variation rule of the split penetrator penetrating 14 mm-thick single-layer round steel target at obliquely 15° and different speed...

Taking advantages of the additive manufacturing technology, our work proposes a new small-caliber light metal gun muzzle brake scheme with an impact-type inner wall and reaction-type outer hole feature. On the basis of the finite element simulation model of the after-effective period gunpowder gas e...

In order to study the factors affecting the anti-elastic energy of the composite double-layer targets, a tungsten alloy spherical fragment with a diameter of 9.5 mm and a mass of 8.05 g was used to penetrate the single layer and the superimposed double Q235 targets with different combinations, which...

Due to the difference in physical quantities such as density and pressure, the forming process of explosive formed projectile(EFP) in air and water is quite different. In order to optimize the design scheme of underwater EFP, the simulation study was carried out using AUTODYN finite element software...

Due to the limitation of current numerical simulation model in predicting the fracture of rod-shaped tantalum-tungsten (Ta-W) alloy explosive formed projectile (EFP) during the forming process, the tests of the mechanical properties of Ta-W alloy specimen under different stress, strain rate and temp...

A dynamic calculation model for launching a long rod projectile was established in this paper, where the sabot used a new type of glass fiber reinforced polyetherimide composite material, and then the dynamic deformation of the sabot under the light gas gun pressure load was analyzed by the LS-DYNA ...

In order to study the explosion resistance of ultra-high performance concrete-filled double skin steel tubes (UHPCFDST) under near-explosive loads, a three-dimensional finite element model of TNT explosives-UHPCFDST columns-air was established. The ALE multi-material fluid-solid coupling algorithm i...