Inelastic deformation mechanisms in SCS-6/Ti 15-3 metal matrix composite (MMC) lamina under compression
Conference
·
OSTI ID:536388
- Wayne State Univ., Detroit, MI (United States)
- Universal Energy Systems, Inc., Dayton, OH (United States)
- Battelle Memorial Inst., Columbus, OH (United States)
An investigation was undertaken to study the inelastic deformation mechanisms in [0]{sub 8} and [90]{sub 8} Ti 15-3/SCS-6 lamina subjected to pure compression. Monotonic tests were conducted a/t room temperature (RT), 538 C, and 650 C. Results indicate that mechanical response and deformation characteristics were different in monotonic tension and compression loading whereas some of those differences could be attributed to residual stress effects. There were other differences because of changes in damage and failure modes. The inelastic deformation in the [0]{sub 8} lamina under compression was controlled primarily by matrix plasticity, although some evidence of fiber-matrix debonding was observed. Failure of the specimen in compression was due to fiber buckling in a macroscopic shear zone (the failure plane). The inelastic deformation mechanisms under compression in [90]{sub 8} lamina were controlled by radial fiber fracture, matrix plasticity, and fiber-matrix debonding. The radial fiber fracture was a new damage mode observed by MMCs. Constitutive response was predicted for both the [0]{sub 8} and [90]{sub 8} laminae, using AGLPLY, METCAN, and Battelle`s Unit Cell FEA model. Results from the analyses were encouraging.
- Sponsoring Organization:
- National Aeronautics and Space Administration, Washington, DC (United States); Department of the Air Force, Washington, DC (United States)
- OSTI ID:
- 536388
- Report Number(s):
- CONF-940399--; ISBN 0-8031-2039-7
- Country of Publication:
- United States
- Language:
- English
Similar Records
Winter Annual Meeting of ASME
Evolution of damage and plasticity in titanium-based, fiber-reinforced composites
Inelastic deformation of metal matrix composites: Plasticity and damage mechanisms, part 2. Final Report
Conference
·
Tue Dec 31 23:00:00 EST 1991
·
OSTI ID:7164912
Evolution of damage and plasticity in titanium-based, fiber-reinforced composites
Journal Article
·
Thu Jul 01 00:00:00 EDT 1993
· Metallurgical Transactions, A (Physical Metallurgy and Materials Science); (United States)
·
OSTI ID:6265073
Inelastic deformation of metal matrix composites: Plasticity and damage mechanisms, part 2. Final Report
Technical Report
·
Thu Oct 01 00:00:00 EDT 1992
·
OSTI ID:6857332