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Full-Text Articles in Engineering
Manipulating Fiber Orientation For The Reduction Of Warpage In Carbon Fiber Composite Sandwich Panels, Landon Burnley, Gabrielle Correia
Manipulating Fiber Orientation For The Reduction Of Warpage In Carbon Fiber Composite Sandwich Panels, Landon Burnley, Gabrielle Correia
Materials Engineering
Safran Cabin (Santa Maria, CA), previously known as Zodiac Aerospace, designs and manufactures interior cabin components for private and commercial aircraft. Carbon fiber face sheets have recently been incorporated in their overhead luggage bin assemblies which utilize a composite sandwich panel design, in order to provide additional stiffness to the previous glass fiber sandwich panels. Since the introduction of carbon fiber in these luggage bin panels, Safran has experienced an increase in warpage during manufacturing. When inspected by quality control, the panels are tested mimicking how they are installed in aircraft. If the panels do not meet specifications, the warped …
Microstructural Transformation Of Cold-Sprayed Grcop-42 For Rocket Engine Combustion Chamber Liners, Mason Souther
Microstructural Transformation Of Cold-Sprayed Grcop-42 For Rocket Engine Combustion Chamber Liners, Mason Souther
Materials Engineering
Rocket engines have always relied on high-conductivity copper liners to protect structural components from extreme thermal loads produced by combustion. Forged NARloy-Z has been the material of choice for decades but increasing cost of its constituent silver and high waste in the machining process has reduced the alloy’s cost effectiveness. Aerojet Rocketdyne wants to determine the viability of cold-spray additively manufactured GRCop-42 as a replacement alloy to reduce liner cost. Screening tests were performed to observe the microstructural development and microhardness changes of cold-sprayed GRCop-42 after being subjected to multiple stages of the typical heat treatment of a combustion chamber …
Rotating Beam Fatigue Of Forged 2219-T852 Aluminum Alloy, Julio Escamilla, Madison Reed
Rotating Beam Fatigue Of Forged 2219-T852 Aluminum Alloy, Julio Escamilla, Madison Reed
Materials Engineering
2219 aluminum has been used extensively in aerospace applications due to its ability to retain strength in large section thicknesses, thus making it ideal for large forgings. However, the Metallic Materials Properties Development and Standardization (MMPDS) handbook, a source of design data for aerospace industry applications, lacks information on 2219 in the T852 condition, particularly concerning the behavior of the alloy under cyclic loading conditions. Data was collected for forgings of 2219-T852 aluminum as produced by Weber Metals to determine the fatigue life of the alloy-temper combination and to assess the effects of forge thickness and orientation on fatigue life. …