High Temperature Tension-compression Fatigue Behavior of a Tungsten Copper Composite PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download High Temperature Tension-compression Fatigue Behavior of a Tungsten Copper Composite PDF full book. Access full book title High Temperature Tension-compression Fatigue Behavior of a Tungsten Copper Composite by Michael J. Verrilli. Download full books in PDF and EPUB format.
Author: Michael J. Verrilli
Publisher:
ISBN:
Category : Compressibility
Languages : en
Pages : 0
Get Book Here
Book Description
Author: Michael J. Verrilli
Publisher:
ISBN:
Category : Compressibility
Languages : en
Pages : 0
Get Book Here
Book Description
Author: MJ. Verrilli
Publisher:
ISBN:
Category : Composite materials
Languages : en
Pages : 12
Get Book Here
Book Description
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.
Author: National Aeronautics and Space Adm Nasa
Publisher: Independently Published
ISBN: 9781792754432
Category : Science
Languages : en
Pages : 36
Get Book Here
Book Description
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...
Author: Michael J. Verrilli
Publisher:
ISBN:
Category : Metallic composites
Languages : en
Pages : 16
Get Book Here
Book Description
Author: Huseyin Sehitoglu
Publisher: ASTM International
ISBN: 0803118716
Category : AIIoys
Languages : en
Pages : 259
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 602
Get Book Here
Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Author: Eugene T. Camponeschi
Publisher: ASTM International
ISBN: 0803114982
Category : Composite materials
Languages : en
Pages : 659
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category : Metallurgy
Languages : en
Pages : 1650
Get Book Here
Book Description
Author: Gary R. Halford
Publisher:
ISBN:
Category : Metallic composites
Languages : en
Pages : 20
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category : Periodicals
Languages : en
Pages : 638
Get Book Here
Book Description
