NASA's Role in Aeronautics: A Workshop. Volume 5: Rotorcraft [PDF]
The potential roles for NASA relating to rotorcraft are reviewed. The agency's participation is delineated for each role, a rationale is provided, the current level of activity is summarized, and suggestions are given for the kinds of research still ...
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A Comparative Study of the Heat Input During Laser Welding of Aeronautical Aluminum Alloy AA6013-T4
, 2018 Bruno N. Coelho +3 more
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National Aeronautics and Space Administration (NASA) Environmental Control and Life Support (ECLS) Integrated Roadmap Development [PDF]
, 2012 Jordan Metcalf +3 more
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Solving for Blameless and Optimal Control Under Prioritized Safety Constraints
Optimal Control Applications and Methods, EarlyView.Summary of the proposed method for solving for blameless and optimal control sequences. ABSTRACT In many safety‐critical optimal control problems, users may request multiple safety constraints that are jointly infeasible due to external factors such as subsystem failures, unexpected disturbances, or fuel limitations.
Natalia Pavlasek +3 more
wiley +1 more source
Study of Welding between aluminum 2024-T3 and glass fiber/PEI composite for aeronautical application
, 2021 Jonas Frank [UNESP] Reis
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People and Nature, EarlyView.Abstract Different aspects of ecological systems, biotic or abiotic, often fluctuate in coordinated patterns over space and time. Such high concordance between ecological processes is often referred to as ecological synchrony. Human activities, including and beyond climate change, have the potential to alter ecological synchrony by disrupting or ...
Yiluan Song +9 more
wiley +1 more source
Solid Particle Erosion and Predictive Modeling of Epoxy Composites Reinforced With Diatom Frustules
Polymer Composites, EarlyView.Schematic representation of the solid particle erosion process and predictive modeling workflow for diatom frustule‐reinforced epoxy composites, illustrating the test setup, erosion response curve, and filler‐matrix interaction. ABSTRACT This study examines the solid particle erosion wear behavior of epoxy composites reinforced with 5–20 wt% calcined ...
Elif Gültürk +4 more
wiley +1 more source
The Role of Interfacial Shear Strength in Composite Performance
Polymer Composites, EarlyView.Plasma‐modified fibre interfaces: effects on interfacial shear strength and composite fracture behaviour. ABSTRACT This study investigates the role of interfacial shear strength (ISS) in governing the mechanical behavior of fiber‐reinforced composites through an experimental approach.
G. Scarselli +5 more
wiley +1 more source
NASA Research in Aeropropulsion [PDF]
The role of the Lewis Research Center in aeronautical propulsion is described. The state of the art in engine systems and components are discussed and some of the problems that confront the civil and military aeronautic sectors are addressed. Some of the
Stewart, W. L.
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Polyethylene‐Polyamide‐6 Diblock Copolymers for Fused Filament Fabrication
Journal of Polymer Science, EarlyView.Linear HDPE‐PA6 block copolymers were prepared by polymerization of ethylene to a macroinitiator and subsequent anionic caprolactam polymerization. The copolymer with a HDPE mass of 6500 Da and PA6 mass of 20.000 Da was used as a filament in 3D printing.
Elsa M. Schoeneberger +1 more
wiley +1 more source