Tensile deformation damage in SiC reinforced Ti-15V-3Cr-3Al-3Sn

Technical Report · Mon Apr 01 04:00:00 EST 1991

OSTI ID:5390545

Lerch, B A; Saltsman, J F

The damage mechanisms of a laminated, continuous SiC fiber reinforced Ti-15V-3Cr-3Al-3Sn (Ti-15-3) composite were investigated. Specimens consisting of unidirectional as well as cross-ply laminates were pulled in tension to failure at room temperature and 427 C and subsequently examined metallographically. Selected specimens were interrupted at various strain increments and examined to document the development of damage. When possible, a micromechanical stress analysis was performed to aid in the explanation of the observed damage. The analyses provide average constituent microstresses and laminate stresses and strains. It was found that the damage states were dependent upon the fiber architecture.

• Research Organization: National Aeronautics and Space Administration, Cleveland, OH (United States). Lewis Research Center
• OSTI ID: 5390545
• Report Number(s): N-91-25195; NASA-TM--103620; E--5778; NAS--1.15:103620
• 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
DEFORMATION
FAILURE MODE ANALYSIS
FIBERS
LAYERS
MATERIALS
MECHANICAL PROPERTIES
METALLOGRAPHY
REINFORCED MATERIALS
SILICON CARBIDES
SILICON COMPOUNDS
STRESS ANALYSIS
SYSTEM FAILURE ANALYSIS
SYSTEMS ANALYSIS
TENSILE PROPERTIES
TIN ALLOYS
TITANIUM ALLOYS
TITANIUM BASE ALLOYS
VANADIUM ALLOYS