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Evolution of damage and plasticity in titanium-based, fiber-reinforced compositesThe inelastic deformation mechanisms were evaluated for a model titanium-based, fiber-reinforced composite: a beta titanium alloy (Ti-15V-3Al-3Cr-3Sn) reinforced with SiC (SCS-6) fibers. The primary emphasis of this article is to illustrate the sequence in which damage and plasticity evolved for this system. The mechanical responses and the results of detailed microstructural evaluations for the 0(8), 90(8), and +/- 45(2s) line oriented laminates are provided. It is shown that the characteristics of the reaction zone around the fiber play a very important role in the way damage and plasticity evolve, particularly in the microyield regime of deformation, and must be included in any realistic constitutive model. Fiber-matrix debonding was a major damage mode for the off-axis systems. The tension test results are also compared with the predictions of a few constitutive models.
Document ID
19930064501
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Majumdar, B. S.
(Universal Energy Systems, Inc., Dayton OH, United States)
Newaz, G. M.
(Battelle Memorial Inst. Columbus, OH, United States)
Ellis, J. R.
(NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
August 16, 2013
Publication Date
July 1, 1993
Publication Information
Publication: Metallurgical Transactions A - Physical Metallurgy and Materials Science
Volume: 24A
Issue: 7
ISSN: 0360-2133
Subject Category
Composite Materials
Accession Number
93A48498
Distribution Limits
Public
Copyright
Other

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