Experimental and numerical approach of afterburning effects in fuel-rich explosives within confined spaces
September 2025
The detonation of fuel-rich explosives yields combustible products that persistently burn upon mixing with ambient oxygen, releasing additional energy through a phenomenon known as the afterburning...
Corrosion-assisted fatigue crack growth behaviour of AA 7075-T651 friction stir welded joints: Influence of extended seawater exposure on microstructure and fracture characteristics
September 2025
This study investigates the corrosion-assisted fatigue crack growth rate (FCGR) of 16 mm thick AA 7075-T651 friction stir welded (FSW) joints. Compact tension (CT) specimens were extracted from both...
Sustainable large-format additive manufacturing of composite molds with 45-degree deposition strategies
September 2025
Military missions in hostile environments are often costly and unpredictable, with squadrons sometimes facing isolation and resource scarcity. In such scenarios, critical components in vehicles, drones,...
Purification of amorphous boron powder through the removal of impurity magnesium and its physicochemical properties
September 2025
At present, the most common preparation method of amorphous boron powder is magnesium thermal reduction method, but the amorphous boron powder obtained by this method mostly contains impurities such...
A new dimensionless number for dynamic plastic deformation analysis of clamped circular plates subjected to underwater blast loading
September 2025
A new dimensionless number is proposed for dynamic plastic deformation analysis of clamped circular plates under underwater explosion loads by introducing dimensional analysis method to the basic dynamical...
A review of current studies on the unmanned aerial vehicle-based moving target tracking methods
September 2025
Unmanned aerial vehicles (UAVs) have become crucial tools in moving target tracking due to their agility and ability to operate in complex, dynamic environments. UAVs must meet several requirements...
Mesoscopic analysis on projectile motion characteristics in oblique penetration into concrete
September 2025
The motion characteristics of projectile during oblique penetration into concrete were studied using a three-dimensional meso-scale model. The finite element model validation and parameter chosen were...
Fault-tolerant control strategies for tilt-rotor aerial-aquatic vehicles: Design and implementation
September 2025
The cross-domain capabilities of aerial-aquatic vehicles (AAVs) hold significant potential for future air-sea integrated combat operations. However, the failure rate of AAVs is higher than that of unmanned...
Discovery of energetic-energetic cocrystal polymorphs with high-energy, low-sensitivity
September 2025
Herein, a first example of energetic-energetic cocrystal polymorphs with a 1:1 M ratio was discovered by cocrystallizing CL-20 (2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane) with 1,3-DNP...
Modulated-unlimited sampling scheme and large dynamic range single carrier signals receiving in ultra-wideband frequency space
September 2025
Large dynamic range and ultra-wideband receiving abilities are significant for many receivers. With these abilities, receivers can obtain signals with different power in ultra-wideband frequency space...
Linear WDE for performance enhancement of MIMO-OFDM system in the presence of Co-CFO
September 2025
The Discrete Walsh Hadamard Transform (DWHT) has emerged as an efficient alternative to the Discrete Fourier Transform (DFT) for Orthogonal Frequency Division Multiplexing (OFDM) implementations, particularly...
The combustion reactivity of core-shell Al/Fluoropolymers and application in RDX-based explosives
September 2025
Aluminum (Al) powder is widely applied in thermobaric explosives due to its high energy density and favorable reaction kinetics. However, the inert oxide layer (Al2O3) on Al particles limits combustion...
Development and experimental validation of the dynamic constitutive model and equation of state for Mo-10Cu alloy
September 2025
This study systematically investigates the mechanical response characteristics of Mo-10Cu pseudo-alloy under various conditions, including temperatures ranging from 298 K to 550 K, strain rates from...
Variable reward function-driven strategies for impulsive orbital attack-defense games under multiple constraints and victory conditions
September 2025
This paper investigates impulsive orbital attack-defense (AD) games under multiple constraints and victory conditions, involving three spacecraft: attacker, target, and defender. In the AD scenario,...
Multi-scale impact resistance of flexible microporous metal rubber: Dynamic energy dissipation mechanism based on dynamic friction locking effect
September 2025
Flexible microporous metal rubber (FMP-MR) is widely used in national defense applications, yet its mechanical behavior under high-speed impact conditions remains insufficiently explored. In this study,...
Failure modes and transformation laws of reinforced concrete slabs under drop hammer impact
September 2025
With the change of the main influencing factors such as structural configuration and impact conditions, reinforced concrete slabs exhibit different mechanical behaviors with different failure patterns,...
Graded density impactor design via machine learning and numerical simulation: Achieve controllable stress and strain rate
September 2025
The graded density impactor (GDI) dynamic loading technique is crucial for acquiring the dynamic physical property parameters of materials used in weapons. The accuracy and timeliness of GDI structural...
Enhancing bonding reliability of solid propellant grain based on FFTA and PSO-GRNN
September 2025
Bonding quality at the interface of solid propellant grains is crucial for the reliability and safety of solid rocket motors. Although bonding reliability is influenced by numerous factors, the lack...
Bismuth's role in quaternary thulium doped tellurite glasses: Achieving optical clarity and radiation shielding
September 2025
This study explores the impact of bismuth oxide (Bi2O3) on the optical and radiation shielding properties of transparent, lead-free thulium-doped bismuth borotellurite radiation shielding glass. The...
Effect of post weld heat treatment on grain boundary character distribution and corrosion resistance of friction stir welded armour-grade nickel and molybdenum-free high-nitrogen austenitic stainless steel
September 2025
This study examines the effects of friction stir welding (FSW) and post-weld heat treatment (PWHT) on the grain boundary character distribution and corrosion resistance of cross sectional (top and bottom)...
A multi-parametric path planning framework utilizing airspace visibility graphs for urban battlefield environments
September 2025
Urban combat environments pose complex and variable challenges for UAV path planning due to multidimensional factors, such as static and dynamic obstructions as well as risks of exposure to enemy detection,...
A review on collisions between drones and aerostructures – Experimental studies, numerical simulation, and regulation
September 2025
The increasing presence of drones seen on the battlefields in modern conflicts poses new threats to manned military aircraft or rotorcraft. In order to assess this potential threat, this manuscript...
Cascading failure modeling and survivability analysis of weak-communication underwater unmanned swarm networks
Available online 16 September 2025
Cascading failures pose a serious threat to the survivability of underwater unmanned swarm networks (UUSNs), significantly limiting their service ability in collaborative missions such as military reconnaissance...
Dynamic response of RC columns under off-central explosions: Experimental, theoretical studies and neural network prediction
Available online 13 September 2025
Reinforced concrete (RC) columns are often subjected to off-central explosion due to the uncertainty of blast locations. However, few studies have focused on the dynamic response of RC columns under...
Real-time visualization and numerical investigation of the dynamic compression response behaviours of single AP/HMX particles embedded in an HTPB binder
Available online 13 September 2025
An in-depth understanding of the behaviours of solid propellants under low-velocity impact loads is crucial for enhancing their safety in applications such as aerospace propulsion. This study investigated...