Dynamic response of corner-enhanced biomimetic spiderweb hierarchical structure under drop-weight impact
September 2026
Inspired by the efficient stress dispersion of natural spider webs, this study proposed a novel corner-enhanced spiderweb honeycomb (CESH) sandwich panel. A combined experimental and numerical simulation...
A composite control strategy for an integrated air-water power system under abrupt load variation during the water-entry process
September 2026
Aerial-underwater trans-medium vehicles have attracted significant interest due to their multi-domain operational capability. However, the performance of existing power systems in such vehicles remains...
In-situ investigation of multi-scale damage behavior and failure mechanisms in solid propellant under thermomechanical coupling conditions
September 2026
Due to the complex service environment of solid rocket motors, solid propellants are subjected to varying temperature and strain rate loads during storage and flight operations, exhibiting complex failure...
Negative temperature-dependent infrared emissivity in Zn-Doped La3Ga5.5Ta0.5O14 ceramics for passive thermal stealth
September 2026
Here we report a scalable bulk-ceramic route for mid-wave infrared (MWIR) stealth based on intrinsic emissivity suppression, achieved through one-step sintering of Zn-doped La3Ga5.5Ta0.5O14. An optimal...
Beyond the 400 °C thermal decomposition barrier: Structural chemistry and design strategies for ultrahigh-temperature-stable energetic materials
Available online 24 September 2026
Extreme environments-from deep-well perforation to hypersonic flight and Venusian surface blasting-impose stringent thermal demands on energetic materials, rendering 400 °C a critical stability threshold....
Ballistic performance of bioinspired double-helical Bouligand structure UHMWPE fiber laminates
Available online 24 September 2026
Ultra-high molecular weight polyethylene (UHMWPE) fiber laminates have broad application prospects in the field of lightweight protection due to their excellent specific strength, specific modulus and...
A Dual-Mode Neuromorphic Magnetic Navigation Device Inspired by Biological Long-Distance Migration
Available online 24 September 2026
Magnetic navigation devices, with their strong resistance to interference and high concealment, have been widely applied in military equipment such as precision-guided weapons, unmanned aerial vehicles,...
Cross-layer evolution behavior of porosity defects in Wire-Arc directed energy deposition and its suppression strategies
Available online 24 September 2026
Hydrogen porosity is a non-negligible defect type in the additive manufacturing of aluminum alloys. Current mitigation strategies rely primarily on optimizing heat-input conditions and applying external...
Reaction modes and crack competition mechanism in HMX explosives under adjustable pre-compression
Available online 20 September 2026
Understanding deflagration to explosion (DET) mechanism in constrained explosives is critical for charge safety. However, systematic experimental knowledge remains lacking regarding reaction mechanisms...
Blast wave characteristics and safety assessment of shallow-buried underground magazines under internal explosion
Available online 20 September 2026
Accidental internal explosions in shallow-buried underground reinforced-concrete (RC) structures may produce external overpressure fields that affect nearby personnel and infrastructure. Unlike free-field...
The promising CL-20 based melt-cast explosive with low solubility and inhibited polymorphic transition
Available online 19 September 2026
For designing a CL-20 based melt-cast explosive, the novel low melting-point explosive 3,5-difluoro-2,4,6-trinitroanisole (DFTNAN) is employed as melt-cast carrier in current work. Benefiting from its...
On the deformation of spherical fragment driven by explosion
Available online 18 September 2026
Spherical fragments deform into a bullet-like shape under detonation. This deformation has a significant effect on the aerodynamic and penetration performance of the fragment. In this work, normalized...
Nitroaminotriazole as a high-nitrogen framework for the synthesis of low-sensitivity energetic materials
Available online 12 September 2026
High-nitrogen compound 5-amino-1-((1H-tetrazol-5-yl)methyl)-3-(tetrazol-1-id-5-yl)-1H-1,2,4-triazol-4-ium (TMTT) was synthesized by incorporating tetrazole and methylenetetrazole units into a triazole...
Microdamage Evolution and Combustion Enhancement of a High-Energy Composite Propellant under Thermal Cycling
Available online 12 September 2026
Thermal cycling is a critical environmental factor affecting the combustion behavior of high-energy composite propellants. In this work, the effects of thermal cycling (−60 to 70 °C) on microstructure...
Temperature-dependent microdamage and mechanical sensitization of HTPB/AP/Al composite propellant under wide temperature exposure conditions
Available online 12 September 2026
Structural integrity and thermo-mechanical safety of solid rocket propellant grains under wide-temperature storage and service environments are critical for the reliability of defence propulsion systems....
Blast-induced pressure focusing in a body armor-protected thorax: Experiments and multiscale numerical simulations
Available online 12 September 2026
Body armor is primarily designed to resist ballistic penetration, whereas its influence on blast-wave propagation and pressure-field reconstruction around the thorax remains insufficiently understood....
Development of a Rigid-Flexible Integrated Bionic Seal Whisker Sensor for Underwater Wake Detection
Available online 12 September 2026
Seals utilize their specialized vibrissae for the precise detection and recognition of hydrodynamic wakes, enabling critical activities such as prey capture and environmental sensing. Inspired by the...
Rapid prediction of shaped charge jet impact initiation of confined explosives under complex encounter conditions: A machine learning approach integrated with simulation data
Available online 11 September 2026
Rapid prediction of impact initiation of confined high explosive (HE) by shaped charge jet (SCJ) under complex encounter conditions plays a crucial role in air and missile defense. It constitutes a...
Effects of melt temperature on solidification nucleation selection, microstructure evolution and mechanical properties of DNTF
Available online 11 September 2026
3,4-Dinitrofurazanofuroxan (DNTF) is an indispensable carrier material for next-generation high-energy melt-cast explosives. Solidification performance dictates the fabrication scheme and final integrity...
First-principles prediction of high-energy-density C–O–N polymers and nitrogen-substitution approach in carbon oxide frameworks
Available online 10 September 2026
By combining first-principles calculations with crystal structure searching, we predict three new high-energy-density CxOyNz polymers: C4O4N8-C2/m (6.58 kJ/g), C6O2N2-Imm2 (5.24 kJ/g), and C6O6N4-Imm2...
Microstructural evolution of PTFE powder under electron beam irradiation and its influence on the processing and performance of MTV energetic materials
Available online 10 September 2026
Although PTFE is an efficient fluorine-source oxidizer in pyrotechnic energetic materials, its poor processability causes large performance variability. This study investigates the property evolution...
Cross-linking of branched glycidyl azide polymer with propargyl-terminated hyperbranched polyester via click chemistry for composite solid propellant
Available online 4 September 2026
To develop a moisture-insensitive, high-performance, catalyst-free binder system for advanced solid propellants, a propargyl-terminated hyperbranched polyester (PTH) was synthesized. The crosslinking...
A comparative study on the modulation of Al/Co3O4 nanocomposites energy release by V4C3 MXene and PVDF
August 2026
Fluoropolymers are effective binders and modifiers in Al-based metastable intermolecular composites (MIC) due to their high reactivity and heat release. Recently, two-dimensional functional MXenes offer...
A robust multiple linear regression model for accurate density prediction of metal-containing energetic complexes and energetic metal-organic frameworks to enhance detonation performance forecasting
August 2026
High-energy-density materials such as metal-containing energetic complexes (MCECs) and energetic metal-organic frameworks (EMOFs) are critical in defense and industrial applications due to their superior...