Results 61 to 70 of about 302,479 (357)

Composite aircraft structure having lightning protection [PDF]

open access: yes, 1982
A lightning protection system for advanced composite aircraft structures consisting of a sandwich structure including two layers of aluminum foil separated by a layer of dielectric material.
Olson, Glenn O.
core   +1 more source

Hydrogen‐Assisted Fracture of Iron‐Based Fe–Ni–Al Alloys

open access: yesAdvanced Engineering Materials, EarlyView.
Principal relations and fracture mechanisms of single‐phase and precipitate‐strengthened Fe–Ni–Al alloys subjected to prior electrochemical hydrogen charging are identified. The mechanisms of hydrogen effect on strength and microhardness are discussed, including hydrogen‐induced increase in microhardness and the role of hydrogen in fracture behavior ...
Nataliya Yadzhak   +3 more
wiley   +1 more source

Numerical simulation of three interior double-layer bulkhead structures

open access: yesJournal of Measurement Science and Instrumentation, 2017
When anti-ship missiles penetrate into the ship armor,fragments and shock waves caused by explosion will severely destroy the personnel and equipment on the ships.In this study,three double-layer bulkheads with different interior sandwich structures were
XU Jun-xiang
doaj  

Prediction of the structural motifs of sandwich proteins [PDF]

open access: yesProceedings of the National Academy of Sciences, 2004
We investigate the supersecondary structure of a large group of proteins, the so-called sandwich proteins. The analysis of a large number of such proteins has led us to propose a set of rules that can be used to predict the possible arrangements of strands in the two β-sheets forming a given sandwich structure.
Fokas, A. S.   +2 more
openaire   +2 more sources

Novel bis-arene (Sandwich) Complexes with NO\u3csup\u3e+\u3c/sup\u3e Acceptor. Isolation, X-ray Crystallography and Electronic Structure [PDF]

open access: yes, 2002
The unusual charge-transfer complexes of various arene donors (ArH) with the nitrosonium cation (NO+) resulting from bimolecular [1 ∶ 1] associations can be extended at suitably high ArH concentrations to termolecular processes leading to the analogous ...
Kochi, Jay K.   +2 more
core   +1 more source

Design and commission of an experimental test rig to apply a full-scale pressure load on composite sandwich panels representative of aircraft secondary structure

open access: yes, 2010
This paper describes the design of a test rig, which is used to apply a representative pressure load to a full-scale composite sandwich secondary aircraft structure.
Crump, D.A.   +2 more
core   +1 more source

In Situ Micromechanical Study of Bimodal γ′–γ″ Precipitate Assemblies in Ni–Cr–Al–Nb Superalloy

open access: yesAdvanced Engineering Materials, EarlyView.
A Ni–Cr–Al–Nb superalloy with a bimodal γ′–γ″ precipitate distribution is developed. Composite precipitate assemblies form through heterogeneous nucleation, effectively impeding dislocation motion. Micropillar compression reveals high strength at room and elevated temperatures, governed by precipitate shearing, with coupled faulting mechanisms ...
Ujjval Bansal   +4 more
wiley   +1 more source

The use of synchrotron edge topography to study polytype nearest neighbour relationships in SiC [PDF]

open access: yes, 1995
A brief review of the phenomenon of polytypism is presented and its prolific abundance in Silicon Carbide discussed. An attempt has been made to emphasise modern developments in understanding this unique behaviour. The properties of Synchrotron Radiation
Amelinckx   +65 more
core   +1 more source

An Experimental High‐Throughput Approach for the Screening of Hard Magnet Materials

open access: yesAdvanced Engineering Materials, EarlyView.
An entire workflow for the high‐throughput characterization and analysis of compositionally graded magnetic films is presented. Characterization protocols, data management tools and data analysis approaches are illustrated with test case Sm(Fe, V)12 based films.
William Rigaut   +16 more
wiley   +1 more source

Novel wire grid embedded C-sandwich radome structures for broadband airborne applications [PDF]

open access: yes, 2008
The application of symmetric wire grid structures for the broadbanding of C-sandwich radome panel, with core thickness optimized for power transmission, is presented. The performance parameters of wire grid embedded C-sandwich wall are evaluated based on
Jha, RM, Nair, RU
core   +1 more source

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