Results 131 to 140 of about 259,706 (309)
A proposed USAF fatigue evaluation program based upon recent systems experience [PDF]
The United States Air Force has published a document entitled Aircraft Structural Integrity Program. One phase of the program is concerned with the fatigue life certification of all types of military aircraft.
Haviland, G. P., Purkey, G. F.
core +1 more source
Polymer Engineering &Science, EarlyView.Life cycle assessment reveals that recyclable PPM coatings significantly reduce environmental impacts compared to epoxy, promoting sustainable aerospace corrosion protection. ABSTRACT This study evaluates the environmental performance of an innovative thermoplastic anticorrosion coating based on poly(phenylene methylene) (PPM) for aluminum alloy AA2024,
Marco Francesco D'Elia +4 more
wiley +1 more source
Full-scale aircraft simulation with cryogenic tunnels and status of the National Transonic Facility [PDF]
The effect of thermal and caloric imperfections in cryogenic nitrogen on boundary layers was determined to indicate that in order to simulate nonadiabatic laminar or turbulent boundary layers in a cryogenic nitrogen wind tunnel, the flight enthalpy ratio,
Adcock, J. B. +4 more
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Fuel system technology overview [PDF]
, 1980 Fuel system research and technology studies are being conducted to investigate the correlations and interactions of aircraft fuel system design and environment with applicable characteristics of the fuel.
Friedman, R.
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Polymer International, EarlyView.An overview and categorization of man‐made per‐ or polyfluoroalkyl substances (PFASs) including low‐molar‐mass and high‐molar‐mass fluorochemicals, and their international regulations is presented. Though certain PFASs are toxic, bioaccumulative and cross the human cellular membranes, others, such as fluoropolymers, are safe, reliable and involved in ...
Bruno Améduri
wiley +1 more source
Full Scale Fatigue Test of New Undercarriage for Commuter Aircraft [PDF]
Fatigue of Aircraft Structures, 2012 Józef Brzęczek +3 more
openaire +1 more source
Delta method, an empirical drag buildup technique [PDF]
An empirical drag correlation technique was developed from analysis of 19 subsonic and supersonic military aircraft and 15 advanced or supercritical airfoil configurations which can be applied in conceptual and advanced aircraft design activities.
Feagin, R. C., Morrison, W. D.
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NASA/Pratt and Whitney experimental clean combustor program: Engine test results [PDF]
, 1977 A two-stage vorbix (vortex burning and mixing) combustor and associated fuel system components were successfully tested in an experimental JT9D engine at steady-state and transient operating conditions, using ASTM Jet-A fuel. Full-scale JT9D experimental
Fiorentino, A. J. +2 more
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Anticlastic Curvature and Material Freedom
physica status solidi (b), EarlyView.Anticlastic curvature occurs in bent bars for positive Poisson's ratio; synclastic curvature occurs for negative Poisson's ratio provided the material is homogeneous and elastic. Some planar negative Poisson's ratio materials exhibit anticlastic saddle curvature rather than convex curvature in bending due to effects of 3D structure.
Roderic Lakes
wiley +1 more source
Satellite-derived cloud fields during the FIRE cirrus IFO case study [PDF]
The First ISCCP Regional Experiment (FIRE) Cirrus Intensive Field Observation (IFO) program measured cirrus cloud properties with a variety of instruments from the surface, aircraft, and satellites. Surface and aircraft observations provide a small scale
Gibson, Gary G. +3 more
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