Preparation of spherical HMX@PDA-based PBX by co-axial droplet microfluidic technology: Enhancing the interfacial effect and safety performance of composite microspheres
March 2025
Surface engineering plays a crucial role in improving the performance of high energy materials, and polydopamine (PDA) is widely used in the field of energetic materials for surface modification and...
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Effects of aging on mechanical sensitivity threshold and thermal decomposition characteristic of RDX/HMX
March 2025
In order to analyze the influences of storage aging on the safety of typical elemental explosives, the aged cyclotrimethylene trinitramine (RDX) and cyclotetramethylene tetranitramine (HMX) were prepared...
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TDNN: A novel transfer discriminant neural network for gear fault diagnosis of ammunition loading system manipulator
March 2025
The ammunition loading system manipulator is susceptible to gear failure due to high-frequency, heavy-load reciprocating motions and the absence of protective gear components. After a fault occurs,...
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LPI radar sequence design against cyclostationary analysis
March 2025
In this paper, we present a novel unimodular sequence design algorithm based on the coordinate descent (CD) algorithm, aimed at countering electronic surveillance (ES) systems based on cyclostationary...
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Iterated rational quadratic kernel - High-order unscented Kalman filtering algorithm for spacecraft tracking
March 2025
The high-speed development of space defense technology demands a high state estimation capacity for spacecraft tracking methods. However, reentry flight is accompanied by complex flight environments,...
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Oscillation mechanism and predictive model of explosion load for natural gas in confined tube
March 2025
Gas explosion in confined space often leads to significant pressure oscillation. It is widely recognized that structural damage can be severe when the oscillation frequency of the load resonates with...
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Development of a composite sandwich-structure piezoresistive pressure sensor for subtle-pressures application
March 2025
The Design and manufacturing of a noble piezoresistive pressure sensor (PS) for subtle pressures (<1 kPa) were presented. Meanwhile, in the studies conducted in the field of pressure sensors, the measurement...
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The superior ballistic performance of highly stretchable and flexible double-face knitted fabrics (DFKF): An experimental investigation
March 2025
When the protective and protected systems are detached, the former can be allowed to absorb the kinetic energy of the impacting projectile through large deformation without considering the back face...
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Resilient multi-objective mission planning for UAV formation: A unified framework integrating task pre- and re-assignment
March 2025
Combat effectiveness of unmanned aerial vehicle (UAV) formations can be severely affected by the mission execution reliability. During the practical execution phase, there are inevitable risks where...
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An improved efficient adaptive method for large-scale multi-explosives explosion simulations
March 2025
Shock wave caused by a sudden release of high-energy, such as explosion and blast, usually affects a significant range of areas. The utilization of a uniform fine mesh to capture sharp shock wave and...
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Design and implementation of a high-performance miniaturized multi-layer magnetic shielding spherical shell with minimal pores based on target magnetic field
March 2025
Achieving the spin-exchange relaxation-free (SERF) state in atomic comagnetometers (ACMs) necessitates a stable and weak magnetic environment. This paper presents the design of a miniaturized permalloy...
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Reactivity of polyaniline composites with attractive cyclic nitramines
March 2025
Composite microcrystals of the nitramines (NAs) viz., RDX, HMX, BCHMX, and CL-20 with electrically conductive polyaniline (PANi) are a charge transfer complexes in coagglomerated composite crystals...
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Anti-migration of NG by using EPDM insulation materials coated with reduced graphene oxide
March 2025
The migration of nitroglycerin (NG) has always been the critical issue that harmfully impacts the structural integrity and operational reliability of the solid rocket motor, which is mainly composed...
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Research status of high efficiency deep penetration welding of medium-thick plate titanium alloy: A review
March 2025
Titanium alloy has the advantages of high strength, strong corrosion resistance, excellent high and low temperature mechanical properties, etc., and is widely used in aerospace, shipbuilding, weapons...
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Review of bumper materials for spacecraft shield against orbital debris hypervelocity impact
March 2025
It is widely known that the hypervelocity impact of orbital debris can cause serious damage to spacecraft, and enhancing the impact resistance is the great concern of spacecraft shield design. This...
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Calibration of empirical penetration models using large deformation explicit finite element simulations of rapid penetration in clay
Available online 27 March 2025
Numerous former military sites worldwide require environmental cleanup from buried unexploded ordnances (UxO) that pose hazards such as leaching toxic chemicals and explosion risks. However, selecting...
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Projectile impact and drop weight resistance of functionally graded fiber-reinforced magnetite aggregate concrete
Available online 27 March 2025
Many researchers have focused on the behavior of fiber-reinforced concrete (FRC) in the construction of various defensive structures to resist against impact forces resulting from explosions and projectiles....
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Damage prediction of rear plate in Whipple shields based on machine learning method
Available online 27 March 2025
A typical Whipple shield consists of double-layered plates with a certain gap. The space debris impacts the outer plate and is broken into a debris cloud (shattered, molten, vaporized) with dispersed...
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A sparse moving array imaging approach for FMCW radar with dual-aperture adaptive azimuth ambiguity suppression and adaptive QR decomposition
Available online 27 March 2025
Range-azimuth imaging of ground targets via frequency-modulated continuous wave (FMCW) radar is crucial for effective target detection. However, when the pitch of the moving array constructed during...
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TA15/TaZrNb multi-element alloy prepared via diffusion bonding: Tensile-strength model and performance of a representative volume element embedded with a sphere
Available online 26 March 2025
In this study, to meet the development and application requirements for high-strength and high-toughness energetic structural materials, a representative volume element of a TA15 matrix embedded with...
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Screening of metal additives in ABS polymer fuel for enhanced performance in hybrid rocket motors: A computational analysis using CEA
Available online 25 March 2025
This study investigates the potential of metal additives in acrylonitrile butadiene styrene (ABS) polymer fuel to enhance hybrid rocket motor (HRM) performance through computational analysis, Chemical...
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Safety Assessment of Framed Hot Launch Departure for Sea-Based Rockets in Rough Sea Conditions
Available online 25 March 2025
Sea-based rocket launches encounter significant challenges stemming from dynamic marine environmental interactions. During the hot launch phase, characterized by low-velocity ascent, the departure of...
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Asynchronously fault detection for flight vehicles with unstable modes via MDLF and MDADT method
Available online 22 March 2025
This research focuses on detecting faults in flight vehicles with unstable subsystems operating asynchronously. By accounting for asynchronous switching, a switched model is established, and filters...
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Advancements in energetic metal-organic frameworks, alkali and alkaline earth metal salts, and transition metal complexes: Predictive models for detonation velocity, heat, and pressure
Available online 22 March 2025
Recent advancements have led to the synthesis of various new metal-containing explosives, particularly energetic metal-organic frameworks (EMOFs), which feature high-energy ligands within well-ordered...
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Performance of multi-layer steel fiber-reinforced mortar panels with air gaps against high-velocity bullets and successive firing
Available online 22 March 2025
This research addresses the growing demand for high-performance protective materials against high-velocity projectile impacts. The performance of multi-layered steel fiber-reinforced mortar (SFRM) panels...
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