Evolution of damage and plasticity in titanium-based, fiber-reinforced composites

Journal Article · Thu Jul 01 04:00:00 EDT 1993 · Metallurgical Transactions, A (Physical Metallurgy and Materials Science); (United States)

DOI:https://doi.org/10.1007/BF02646599· OSTI ID:6265073

Majumdar, B S ^[1]; Newaz, G M ^[2]; Ellis, J R ^[3]

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1. Universal Energy Systems, Inc., Dayton, OH (United States)
2. Battelle Memorial Inst., Columbus, OH (United States)
3. NASA Lewis Research Center, Cleveland, OH (United States). Fatigue and Failure Branch

The 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][sub 8], [90][sub 8], and [[plus minus]45][sub 2s] 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.

• OSTI ID: 6265073
• Journal Information: Metallurgical Transactions, A (Physical Metallurgy and Materials Science); (United States), Journal Name: Metallurgical Transactions, A (Physical Metallurgy and Materials Science); (United States) Vol. 24:7; ISSN 0360-2133; ISSN MTTABN
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
ALLOYS
ALUMINIUM ALLOYS
CARBIDES
CARBON COMPOUNDS
CHROMIUM ALLOYS
COMPOSITE MATERIALS
DAMAGE
DATA
DEFORMATION
EXPERIMENTAL DATA
FUNCTIONS
INFORMATION
MATERIALS
MECHANICAL PROPERTIES
MICROSTRUCTURE
NUMERICAL DATA
PLASTICITY
REINFORCED MATERIALS
RESPONSE FUNCTIONS
SILICON CARBIDES
SILICON COMPOUNDS
TIN ALLOYS
TITANIUM ALLOYS
TITANIUM BASE ALLOYS
VANADIUM ALLOYS