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Mechanical behavior of fiber reinforced SiC/RBSN ceramic matrix composites: Theory and experimentThe mechanical behavior of continuous fiber reinforced SiC/RBSN (Reaction Bonded Silicon Nitride) composites with various fiber contents is evaluated. Both catastrophic and noncatastrophic failures are observed in tensile specimens. Damage and failure mechanisms are identified via in-situ monitoring using NDE (nondestructive evaluation) techniques through the loading history. Effects of fiber/matrix interface debonding (splitting) parallel to fibers are discussed. Statistical failure behavior of fibers is also observed, especially when the interface is weak. Micromechanical models incorporating residual stresses to calculate the critical matrix cracking strength, ultimate strength, and work of pull-out are reviewed and used to predict composite response. For selected test problems, experimental measurements are compared to analytical predictions.
Document ID
19910011930
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Chulya, Abhisak (Cleveland State Univ. OH., United States)
Gyekenyesi, John P. (NASA Lewis Research Center Cleveland, OH, United States)
Bhatt, Ramakrishna T. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 6, 2013
Publication Date
January 1, 1991
Subject Category
Composite Materials
Report/Patent Number
AVSCOM-TR-91-C-004
E-5907
AD-A235926
NASA-TM-103688
NAS 1.15:103688
Meeting Information
Meeting: International Gas Turbine and Aeroengine Congress and Exposition
Location: Orlando, FL
Country: United States
Start Date: June 3, 1991
End Date: June 6, 1991
Sponsors: ASME
Accession Number
91N21243
Funding Number(s)
PROJECT: RTOP 510-01-50
PROJECT: DA PROJ. 1L1-61102-AH-45
CONTRACT_GRANT: NCC3-81
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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