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Tensile and fatigue behavior of tungsten/copper compositesWork on W/Cu unidirectional composites was initiated to study the behavior of this ductile-ductile composite system under thermomechanical fatigue and to examine the applicability of fatigue-life prediction methods for thermomechanical fatigue of this metal matrix composite. The first step was to characterize the tensile behavior of four ply, 10 vol. percent W/Cu plates at room and elevated temperatures. Fatigue tests were conducted in load control on 0 degree specimens at 260 C. The maximum cyclic stress was varied but the minimum cyclic stress was kept constant. All tests were performed in vacuum. The strain at failure increased with increasing maximum cyclic stress.
Document ID
19910014998
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Verrilli, Michael J. (NASA Lewis Research Center Cleveland, OH, United States)
Gabb, Timothy P. (NASA Lewis Research Center Cleveland, OH, United States)
Kim, Y. S. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 6, 2013
Publication Date
April 1, 1989
Publication Information
Publication: Structural Integrity and Durability of Reusable Space Propulsion Systems
Subject Category
Composite Materials
Accession Number
91N24311
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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