Results 81 to 90 of about 25,532,893 (259)

Infrared inspection of composite-reinforced concrete structures

open access: yes, 2001
"October 2001."; "Aerospace report no. ATR-2002(7596)-1."; Includes bibliographical references (p. 17).; Final report.; Performed by the Aerospace Corporation Engineering and Technology Group for Ohio Dept.
Nokes, James Phillip.   +1 more
core  

Molecularly Dissipative Liquid Crystal Elastomer Foams for Impact and Vibration Attenuation

open access: yesAdvanced Functional Materials, EarlyView.
Liquid crystal elastomer foams integrate cellular deformation with mesogen reorientation to create a dual‐scale energy dissipation mechanism. Progressive pore collapse absorbs mechanical loads, while stress‐induced mesogen reorientation provides additional damping, resulting in reduced impact transmission and broadband suppression of vibrational ...
Subi Choi   +5 more
wiley   +1 more source

Use Patterns of Aerospace Engineering Discussion Forums / Newsgroups, Blogs and Wikis: A Rresearch Survey of Aerospace Scientists and Engineers of Bangalore

open access: yes, 2012
Aerospace is seen as a key technology today owing to its huge growth in Asia in general and India in particular. Indian aerospace scientists and engineers currently working on strategically important projects depend heavily on rapid collection of ...
Guruprasad, R   +2 more
core  

Intracrystalline Void‐Mediated Toughening of Brittle Crystals in Quail Eggshells

open access: yesAdvanced Functional Materials, EarlyView.
In quail eggshells, the high density and disordered arrangement of intracrystalline voids inhibit lattice cleavage, suppress long‐range crack propagation, and promote deformation twinning and quasi‐plasticity, serving as an essential toughening motif. We show that these voids remain within a narrow subcritical size range and therefore predominantly do ...
Jingxiao Zhong   +16 more
wiley   +1 more source

Towards the Wearable Cardiorespiratory Sensors for Aerospace Applications

open access: yesJournal of Aviation/Aerospace Education & Research
In safety-critical aviation operations, adaptive Human-Machine Interfaces (HMI) rely on accurate physiological monitoring to mitigate cognitive overload.
Chandan Sheikder
doaj   +1 more source

Neuromorphic Devices for Extreme Environments: State‐Variable Reliability and Stabilization Strategies

open access: yesAdvanced Functional Materials, EarlyView.
Neuromorphic devices for extreme environments are interpreted through the physical states that store and process information. Radiation, temperature extremes, and vacuum can perturb vacancies, filaments, trapped charges, polarization, interfaces, and readout signals.
Taehyun Park   +7 more
wiley   +1 more source

Effect of chemical reactions on the fluidic thrust vectoring of an axisymmetric nozzle

open access: yesInternational Journal of Aviation, Aeronautics, and Aerospace, 2019
: During the last years, several thrust control systems of aerospace rocket engines have been developed. The fluidic thrust vectoring is one of them; it is simple in design and offers a substantial gain in weight and in performance.
Rachid CHOUICHA   +2 more
doaj   +1 more source

Bistable Isochoric Chiral Metamaterials with Reprogrammable Multiaxial Responses

open access: yesAdvanced Functional Materials, EarlyView.
An isochoric bistable rotational unit cell enables in situ modification of internal contact conditions post‐fabrication, without altering the global envelope dimensions of the surrounding architecture. By selectively switching between open and closed states, the tessellated chiral metamaterial can reprogram its volumetric response, including bulk ...
Shujia Chen   +3 more
wiley   +1 more source

Advancements in Lightweight Materials for Aerospace Structures: A Comprehensive Review [PDF]

open access: yes
The aerospace engineering field is witnessing an evolution towards lightweight materials driven by the unwavering pursuit of improved performance and efficiency.
Dixit, Chandan   +4 more
core   +1 more source

Ultra‐Thin Tow‐Based Discontinuous Composites—Material Overview and Aspirations

open access: yesAdvanced Functional Materials, EarlyView.
Tow‐based discontinuous composites made from ultra‐thin tapes offer outstanding in‐plane mechanical properties. This material, inspired by Nacre, has high volume fraction of tapes exceeding 90 % and allows for quasi‐isotropic material plates less than 100 micrometer in thickness.
Ioannis Katsivalis   +8 more
wiley   +1 more source

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