Stress Strain Behavior Of Tungsten Fiber Reinforced Copper Composites
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Stress Strain Behavior Of Tungsten Fiber Reinforced Copper Composites
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Author : David L. McDanels
language : en
Publisher:
Release Date : 1963
Stress Strain Behavior Of Tungsten Fiber Reinforced Copper Composites written by David L. McDanels and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1963 with Copper categories.
Stress Strain Behavior Of Tungsten Fiber Reinforced Copper Composites
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Author : David L. McDanels
language : en
Publisher:
Release Date : 1963
Stress Strain Behavior Of Tungsten Fiber Reinforced Copper Composites written by David L. McDanels and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1963 with Copper categories.
Tungsten Fiber Reinforced Copper Matrix Composites
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Author : David L. McDanels
language : en
Publisher:
Release Date : 1989
Tungsten Fiber Reinforced Copper Matrix Composites written by David L. McDanels and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Composite materials categories.
Tungsten Fiber Reinforced Copper Matrix Composites A Review
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Author : National Aeronautics and Space Adm Nasa
language : en
Publisher: Independently Published
Release Date : 2018-10-18
Tungsten Fiber Reinforced Copper Matrix Composites A Review written by National Aeronautics and Space Adm Nasa and has been published by Independently Published this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-10-18 with Science categories.
Tungsten fiber reinforced copper matrix (W/Cu) composites have served as an ideal model system with which to analyze the properties of metal matrix composites. A series of research programs were conducted to investigate the stress-strain behavior of W/Cu composites; the effect of fiber content on the strength, modulus, and conductivity of W/Cu composites; and the effect of alloying elements on the behavior of tungsten wire and of W/Cu composites. Later programs investigated the stress-rupture, creep, and impact behavior of these composites at elevated temperatures. Analysis of the results of these programs as allows prediction of the effects of fiber properties, matrix properties, and fiber content on the properties of W/Cu composites. These analyses form the basis for the rule-of-mixtures prediction of composite properties which was universally adopted as the criteria for measuring composite efficiency. In addition, the analyses allows extrapolation of potential properties of other metal matrix composites and are used to select candidate fibers and matrices for development of tungsten fiber reinforced superalloy composite materials for high temperature aircraft and rocket engine turbine applications. The W/Cu composite efforts are summarized, some of the results obtained are described, and an update is provided on more recent work using W/Cu composites as high strength, high thermal conductivity composite materials for high heat flux, elevated temperature applications. Mcdanels, David L. Glenn Research Center RTOP 586-01-11
High Temperature Fatigue Behavior Of Tungsten Copper Composites
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Author : National Aeronautics and Space Adm Nasa
language : en
Publisher: Independently Published
Release Date : 2019
High Temperature Fatigue Behavior Of Tungsten Copper Composites written by National Aeronautics and Space Adm Nasa and has been published by Independently Published this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with Science categories.
The high temperature fatigue behavior of a 9 vol percent, tungsten fiber reinforced copper matrix composite was investigated. Load-controlled isothermal fatigue experiments at 260 and 560 C and thermomechanical fatigue (TMF) experiments, both in phase and out of phase between 260 and 560 C, were performed. The stress-strain response displayed considerable inelasticity under all conditions. Also, strain ratcheting was observed during all the fatigue experiments. For the isothermal fatigue and in-phase TMF tests, the ratcheting was always in a tensile direction, continuing until failure. The ratcheting during the out-of-phase TMF test shifted from a tensile direction to a compressive direction. This behavior was thought to be associated with the observed bulging and the extensive cracking of the out-of-phase specimen. For all cases, the fatigue lives were found to be controlled by damage to the copper matrix. Grain boundary cavitation was the dominant damage mechanism of the matrix. On a stress basis, TMF loading reduced lives substantially, relative to isothermal cycling. In-phase cycling resulted in the shortest lives, and isothermal fatigue at 260 C, the longest. Verrilli, Michael J. and Kim, Yong-Suk and Gabb, Timothy P. Glenn Research Center NASA-TM-102404, E-5156, NAS 1.15:102404 RTOP 510-01-0A...
Analysis Of Stress Rupture And Creep Properties Of Tungsten Fiber Reinforced Copper Composites
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Author : David L. McDanels
language : en
Publisher:
Release Date : 1967
Analysis Of Stress Rupture And Creep Properties Of Tungsten Fiber Reinforced Copper Composites written by David L. McDanels and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1967 with Superconducting composites categories.
Elastic Plastic Finite Element Analyses Of An Unidirectional 9 Vol Percent Tungsten Fiber Reinforced Copper Matrix Composite
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Author :
language : en
Publisher:
Release Date : 1993
Elastic Plastic Finite Element Analyses Of An Unidirectional 9 Vol Percent Tungsten Fiber Reinforced Copper Matrix Composite written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with categories.
High Temperature Tension Compression Fatigue Behavior Of A Unidirectional Tungsten Copper Composite
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Author : MJ. Verrilli
language : en
Publisher:
Release Date : 1993
High Temperature Tension Compression Fatigue Behavior Of A Unidirectional Tungsten Copper Composite written by MJ. Verrilli and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Composite materials categories.
The high-temperature fatigue behavior of a [0]12 tungsten fiber-reinforced copper matrix composite was investigated. Specimens having fiber volume percentages of 10 and 36 were fatigued under fully reversed, strain-controlled conditions at both 260 and 560°C. The fatigue life was found to be independent of fiber volume fraction because fatigue damage preferentially occurred in the matrix. Also, the composite fatigue lives were shorter at 560°C as compared to 260°C, due to changes in mode of matrix failure. On a total strain basis, the fatigue life of the composite at 560°C was the same as the life of unreinforced copper, indicating that the presence of the fibers did not degrade the fatigue resistance of the copper matrix in this composite system. Comparison of strain-controlled fatigue data to previously generated load-controlled data revealed that the strain-controlled fatigue lives were longer because of mean strain and mean stress effects.
Nasa Technical Paper
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Author :
language : en
Publisher:
Release Date : 1989
Nasa Technical Paper written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Science categories.
Elevated Temperature Tensile Properties Of Alloyed Tungsten Fiber Composites
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Author : Donald W. Petrasek
language : en
Publisher:
Release Date : 1965
Elevated Temperature Tensile Properties Of Alloyed Tungsten Fiber Composites written by Donald W. Petrasek and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1965 with Metals categories.
The effects of selected alloying elements on the elevated temperature tensile properties of tungsten fiber reinforced composites were studied. Composites were made of copper, copper- 2 percent chromium and copper- 10 percent nickel reinforced with various volume percents of uniaxially oriented tungsten fibers. The composites were tested in tension at temperatures up to 1800 degrees F.A comparison of the elevated-temperature tensile properties of tungsten fiber - copper alloy composites, representing soluble systems, was made with tungsten fiber - copper composites, representing a mutually insoluble system. The effects of alloying on the elevated-temperature tensile properties of tungsten fiber reinforced composites was also studied. A linear relation existed at elevated temperatures between tensile strength and volume percent fiber content for all the systems investigated. The copper alloy composites were weaker in tension at high volume percent fiber contents than copper composites in which alloying with the fiber did not occur. The tensile strength of the alloyed tungsten fiber decreased with increasing penetration of the alloying element into the tungsten fiber.