Results 41 to 50 of about 3,155 (225)

On the ballistic limit of an aerial vehicle impacting against a thin metal screen at a high velocity [PDF]

open access: yesAIP Conference Proceedings, 2019
The paper deals with the kinetic (that is, impact-driven penetration) effect of aircraft (aerial vehicles, AV) colliding with thin metal barriers at high velocities. Investigating this impact-driven penetration effect of AV involves studying the processes of perforation (perforation means that the aircraft emerges fully on the other side of the barrier)
V. I. Pusev   +4 more
openaire   +1 more source

Feline‐Inspired Robot Enabled by Combustion‐Driven Actuators for Agile Motion and High‐Payload Obstacle Traversal

open access: yesAdvanced Science, EarlyView.
Inspired by nature's competitive maneuvers, this study introduces a combustion‐driven soft actuator that powers a multi‐modal “Jump‐and‐Fly Catbot” (JFC). With millisecond response, high‐force output (over 70 times its weight) and precise control (error within 5%), the robot can jump, fly, hover, and escape from challenging environments, achieving ...
Hongkuan Ma   +4 more
wiley   +1 more source

Effects of ductile Al on the anti-penetration performance of the Ti-Al3Ti Laminated Composites

open access: yesResults in Physics, 2020
The ductile Al in the Ti-Al Laminated Composites has a significant influence on their microstructure, distribution of internal stress, mechanical properties, failure modes and so on.
Meini Yuan   +4 more
doaj   +1 more source

Thermally Modulated Specular Phonon Transport in a High‐Debye‐Temperature Diamond Nanobeam

open access: yesAdvanced Science, EarlyView.
Thermal transport in single‐crystal diamond nanobeams is measured from 140 to 300 K using electro‐thermal micro‐suspended structures. The thermal conductivity shows an increasing deviation from Boltzmann transport predictions assuming fully diffuse boundary scattering at lower temperatures.
Seohee Jang   +5 more
wiley   +1 more source

Influences of nanotwin volume fraction on the ballistic performance of coarse-grained metals

open access: yesTheoretical and Applied Mechanics Letters, 2017
Coarse-grained (CG) metals strengthened by nanotwinned (NT) regions possess high strength and good ductility. As such, they are very suitable for applications in bullet-proof targets.
Q.D. Ouyang, G.J. Weng, A.K. Soh, X. Guo
doaj   +1 more source

A Simulation Study of Magnesium Alloy AZ31B Behavior in High-Velocity Impact and Ballistic Limit

open access: yesJournal of Innovation and Technology, 2022
Magnesium Alloy are made of magnesium combined with different metal elements to improve the physical properties. The elements included were manganese, aluminium, zinc, silicon, copper, zirconium, and rare-earth metals. The magnesium density has been stated to be significantly 35% less than aluminium and significantly 77% less than steel.
openaire   +1 more source

Emerging Advanced Electronic Packaging Materials for Thermal Management in Power Electronics

open access: yesAdvanced Science, EarlyView.
This review surveys emerging materials for thermal management in advanced electronic packaging, with emphasis on ceramic substrates and thermal interface materials. Multiscale simulations and mechanistic analyses are highlighted, alongside the emerging role of artificial intelligence in predicting thermal properties and guiding design, offering ...
Yongjun Huo   +11 more
wiley   +1 more source

Topological Materials and Related Applications

open access: yesAdvanced Electronic Materials, EarlyView.
This review covers topological materials—including topological insulators, quantum valley Hall and quantum spin Hall insulators, and topological Weyl and Dirac semimetals—as well as their most recent advancements in fields such as spintronics, electronics, photonics, thermoelectrics, and catalysis.
Carlo Grazianetti   +9 more
wiley   +1 more source

A Comparative Study of Ballistic Resistance of Sandwich Panels with Aluminum Foam and Auxetic Honeycomb Cores

open access: yesAdvances in Mechanical Engineering, 2013
An innovative auxetic-cored sandwich panel (AXP) is proposed. Its perforation resistant performance under high-velocity projectile impact was numerically analyzed using the validated finite element simulation techniques and compared with that of the ...
Shu Yang   +5 more
doaj   +1 more source

Smart Denture with Embedded Thin‐Film Temperature Sensors Patterned by Femtosecond Laser Pulse for Elderly Healthcare

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 3, March 2025.
We demonstrate the direct‐laser patterning of a gold thin film on polymethyl methacrylate to fabricate a temperature sensor for dentures. The temperature sensor‐embedded smart dentures are evaluated in an oral environment, enabling in‐situ monitoring for elderly healthcare.
Han Ku Nam   +7 more
wiley   +1 more source

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