Results 231 to 240 of about 1,220,175 (393)

Mitigation of infusion and cure‐induced defects for thick thermosetting composites: Current challenges and future trends

open access: yesPolymer Composites, EarlyView.
Typical manufacturing defects and mitigation strategies in thick thermosetting composites. Abstract The composite part industry is currently dominated by thin‐section geometries. However, thick composites gain interest in many applications where monolithic parts are required, such as foils, wind mill root blades, and so forth.
Francesco Taddei   +2 more
wiley   +1 more source

Fracture toughness characterization of carbon fiber‐reinforced thermoplastic composites under ultrasonic frequency

open access: yesPolymer Composites, EarlyView.
Dynamic fracture toughness characterization of carbon fiber‐reinforced composites under ultrasonic frequency. Abstract The separation and evaluation of fiber layers with residual polymers are pivotal processes within materials‐circularity strategies in composites.
Balaji Ragupathi   +5 more
wiley   +1 more source

CF6-6D engine short-term performance deterioration [PDF]

open access: yes
Studies conducted as part of the NASA-Lewis CF6 jet engine diagnostics program are summarized. An 82-engine sample of DC-10-10 aircraft engine checkout data that were gathered to define the extent and magnitude of CF6-6D short term performance ...
Kramer, W. H.   +3 more
core   +1 more source

Corrosion and structural properties of lightweight magnesium and aluminum alloy cores based sandwich composites

open access: yesPolymer Composites, EarlyView.
The structural characterization of AZ91/Al1050 core based sandwiches. Abstract Metal plate core‐based sandwich composites have the potential to revolutionize various industrial fields due to their mechanical strength and vibration damping. In this study, AZ91 (a magnesium alloy) and Al1050 (an aluminum alloy) metal core‐based sandwich composites of ...
Abdulsamet Keleş   +6 more
wiley   +1 more source

The NASA high-speed turboprop program [PDF]

open access: yes
Technology readiness for Mach 0.7 to 0.8 turboprop powered aircraft with the potential for fuel savings and DOC reductions of up to 30 and 15 percent respectively relative to current in-service aircraft is addressed. The areas of propeller aeroacoustics,
Dugan, J. F.   +3 more
core   +1 more source

Active Combustion Control for aircraft gas turbine engines [PDF]

open access: green, 2000
John C. DeLaat   +3 more
openalex   +1 more source

Effect of low‐pressure plasma treatment on the adhesive performance of PEEK and co‐polymerized PAEK composites

open access: yesPolymer Composites, EarlyView.
The influence mechanism of plasma treatment on the surface morphology of CF/PEEK and CF/PAEK composites. Abstract The use of high‐performance thermoplastic composites has become an increasing trend in the manufacturing of modern aerospace structures due to their environmental and economic advantages.
Jindong Zhang   +5 more
wiley   +1 more source

Gas exchange optimization in aircraft engines using sustainable aviation fuel: A design of experiment and genetic algorithm approach

open access: yesEnergy and AI
The poppet valves two-stroke (PV2S) aircraft engine fueled with sustainable aviation fuel is a promising option for general aviation and unmanned aerial vehicle propulsion due to its high power-to-weight ratio, uniform torque output, and flexible valve ...
Zheng Xu   +14 more
doaj  

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