Adjoint-based RCS surface sensitivity calculation for very large electrical size object
May 2025
The primary concern in stealth aircraft design is the very large electrical size objects. However, the computational and storage requirements of these objects present significant obstacles for current...
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Determining the parameters and chemical behaviour of the overdriven detonation reaction zone of CL-20-based aluminized explosives
May 2025
The new CL-20 (hexanitrohexaazaisowurtzitane) type aluminized explosives in the overdrive detonation (ODD) conditions of the core problem is how to accurately represent the state of the overdrive detonation...
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Dynamics and experiments of a tendon-actuated flexible robotic arm for capturing a floating target
May 2025
Reusable and flexible capturing of space debris is highly required in future aerospace technologies. A tendon-actuated flexible robotic arm is therefore proposed for capturing floating targets in this...
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Multiple fixed-wing UAVs collaborative coverage 3D path planning method for complex areas
May 2025
Complex multi-area collaborative coverage path planning in dynamic environments poses a significant challenge for multi-fixed-wing UAVs (multi-UAV). This study establishes a comprehensive framework...
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Experimental investigation on dynamic stab resistance of high-performance multi-layer textile materials
May 2025
Stab-resistant textiles play a critical role in personal protection, necessitating a deeper understanding of how structural and layering factors influence their performance. The current study experimentally...
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Impact of adhesive layer properties on ceramic multi-layered ballistic armour systems: A review
May 2025
The role of the adhesive layer in the ballistic performance of ceramic multi-layer armour system is complex and multi-faceted, often with trade-offs between single- and multi-hit performance. However,...
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Controlling update distance and enhancing fair trainable prototypes in federated learning under data and model heterogeneity
May 2025
Heterogeneous federated learning (HtFL) has gained significant attention due to its ability to accommodate diverse models and data from distributed combat units. The prototype-based HtFL methods were...
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Impact-induced energy release of typical HCP metal/PTFE/W reactive materials: Experimental study and predictive modeling via machine learning
May 2025
Zirconium, titanium, and other hexagonally close-packed (HCP) metals and their alloys are representative high specific strength, high reaction enthalpy, and high thermal conductivity structural materials....
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A comprehensive comparison of hydro-elastoplastic-damage and cap-elastoplastic-damage material models for concrete subjected to impact and blast loadings
May 2025
Concrete material model plays an important role in numerical predictions of its dynamic responses subjected to projectile impact and charge explosion. Current concrete material models could be distinguished...
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Experimental and numerical investigation of cavity characteristics in behind-armor liquid-filled containers under shaped charge jet impact
May 2025
The cavity characteristics in liquid-filled containers caused by high-velocity impacts represent an important area of research in hydrodynamic ram phenomena. The dynamic expansion of the cavity induces...
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Research on multi-scale simulation and dynamic verification of high dynamic MEMS components in additive manufacturing
May 2025
Metal Additive Manufacturing (MAM) technology has become an important means of rapid prototyping precision manufacturing of special high dynamic heterogeneous complex parts. In response to the micro-mechanical...
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Performance analysis of fluid-core Whipple shields under hypervelocity impact at different projectile speeds
May 2025
Whipple shields as sacrificial bumpers, safeguard the satellites against extremely fast, different-sized projectiles traveling through space in the low earth orbit. Typical Whipple shields comprise...
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Optimal two-channel switching false data injection attacks against remote state estimation of the unmanned aerial vehicle cyber-physical system
May 2025
A security issue with multi-sensor unmanned aerial vehicle (UAV) cyber physical systems (CPS) from the viewpoint of a false data injection (FDI) attacker is investigated in this paper. The FDI attacker...
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Launch dynamics modeling and simulation of box-type multiple launch rocket system considering plane clearance contact
May 2025
As the performance of the box-type multiple launch rocket system (BMLRS) improves, its mechanical structures, particularly the plane clearance design between the slider on the rocket and the guide inside...
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Study, development and related application of a miniature compact pulsed power supply with high repetition frequency
May 2025
Capacitor-based pulsed power supply (PPS) is widely used in fields related to electromagnetic launch, plasma, and materials' synthesis, modification and processing. As industrial applications place...
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Research on equation of state parameters for high-energy solid propellants based on improved cylinder test and particle swarm optimization
May 2025
With the development of high energy solid propellants, it is critical to evaluate the safety and power performance of solid propellants in the face of threats such as unmanned aerial vehicles (UAVs)...
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Nonlinear asymmetric thermomechanical buckling of shallow nanoscale arches having dissimilar end conditions embracing nonlocality and strain gradient size dependencies
May 2025
The undercurrent research survey explores the roles of nonlocality and strain gradient size dependencies in nonlinear asymmetric buckling of shallow nanoscale arches having dissimilar end conditions...
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Simulation and experimental study on the use of shaped charge jet as transient antennas for radiating electromagnetic pulses
May 2025
In this study, the potential application of shaped charge jets as transient antennas for electromagnetic signal transmission was explored and an electromagnetic pulse radiation system with a shaped...
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Study on the formation characteristics of underwater hemispherical shaped charge jet and its penetration performance into concrete
May 2025
Shaped charge has been widely used for penetrating concrete. However, due to the obvious difference between the propagation of shock waves and explosion products in water and air, the theory governing...
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Damage mechanism of gamma-irradiated repurposed pultruded glass fibre polyester composite subjected to low-velocity impact using non-destructive techniques
May 2025
Investigating the influence of radiation on glass fibre composites is essential for their use in space and aerospace environment. Gaining insight into the damage mechanisms caused by gamma irradiation,...
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Thermochemical characteristics of Ce95Al5 material and perforation behavior of its liner on steel targets
Available online 20 May 2025
Cerium-aluminum (CeAl) alloy is promising reactive structural materials (RSMs) with significant potential for liner applications. To investigate the thermochemical characteristics of CeAl alloy and...
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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
Available online 19 May 2025
This study examines the effects of friction stir welding (FSW) and post-weld heat treatment (PWHT) on the microstructure and corrosion resistance of nickel- and molybdenum-free high-nitrogen austenitic...
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Linear WDE for performance enhancement of MIMO-OFDM system in the presence of Co-CFO
Available online 17 May 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...
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Multi-scale impact resistance of flexible microporous metal rubber: Dynamic energy dissipation mechanism based on dynamic friction locking effect
Available online 17 May 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,...
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Sustainable large-format additive manufacturing of composite molds with 45-degree deposition strategies
Available online 16 May 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,...
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