ASTM Symposium on Composites Materials: Fatigue and Fracture IV
Conference
·
OSTI ID:6009729
Thermomechanical fatigue (TMF) data was generated for a Ti-15V-3Cr-3Al-3Sn (Ti-15-3) material reinforced with SCS-6 silicon carbide fibers for both in-phase and out-of-phase thermomechanical cycling. Significant differences in failure mechanisms and fatigue life were noted for in-phase and out-of-phase testing. The purpose of the research is to apply a micromechanical model to the analysis of the data. The analysis predicts the stresses in the fiber and the matrix during the thermal and mechanical cycling by calculating both the thermal and mechanical stresses and their rate-dependent behavior. The rate-dependent behavior of the matrix was characterized and was used to calculate the constituent stresses in the composite. The predicted 0 degree fiber stress range was used to explain the composite failure. It was found that for a given condition, temperature, loading frequency, and time at temperature, the 0 degree fiber stress range may control the fatigue life of the unidirectional composite.
- Research Organization:
- National Aeronautics and Space Administration, Hampton, VA (United States). Langley Research Center
- OSTI ID:
- 6009729
- Report Number(s):
- N-91-31677; NASA-TM--104105; NAS--1.15:104105; CONF-9105188--
- Country of Publication:
- United States
- Language:
- English
Similar Records
The isothermal fatigue behavior of a unidirectional SiC/Ti composite and the Ti alloy matrix
Stress-strain analysis of a (0/90)sub 2 symmetric titanium matrix laminate subjected to a generic hypersonic flight profile
Fracture mechanisms of the SCS-6 fiber-reinforced titanium alloy matrix composites
Technical Report
·
Fri Mar 31 23:00:00 EST 1989
·
OSTI ID:5889122
Stress-strain analysis of a (0/90)sub 2 symmetric titanium matrix laminate subjected to a generic hypersonic flight profile
Technical Report
·
Sat Feb 29 23:00:00 EST 1992
·
OSTI ID:7305926
Fracture mechanisms of the SCS-6 fiber-reinforced titanium alloy matrix composites
Thesis/Dissertation
·
Mon Dec 31 23:00:00 EST 1990
·
OSTI ID:7201555
Related Subjects
36 MATERIALS SCIENCE
360603* -- Materials-- Properties
ALLOYS
ALUMINIUM
CARBIDES
CARBON COMPOUNDS
CHROMIUM
COMPOSITE MATERIALS
ELEMENTS
FAILURE MODE ANALYSIS
FATIGUE
FIBERS
HEAT TREATMENTS
MATERIALS
MATRIX MATERIALS
MECHANICAL PROPERTIES
METALS
SILICON CARBIDES
SILICON COMPOUNDS
STRESSES
SYSTEM FAILURE ANALYSIS
SYSTEMS ANALYSIS
THERMAL CYCLING
THERMAL STRESSES
TIN
TITANIUM ALLOYS
TITANIUM BASE ALLOYS
TRANSITION ELEMENTS
VANADIUM
360603* -- Materials-- Properties
ALLOYS
ALUMINIUM
CARBIDES
CARBON COMPOUNDS
CHROMIUM
COMPOSITE MATERIALS
ELEMENTS
FAILURE MODE ANALYSIS
FATIGUE
FIBERS
HEAT TREATMENTS
MATERIALS
MATRIX MATERIALS
MECHANICAL PROPERTIES
METALS
SILICON CARBIDES
SILICON COMPOUNDS
STRESSES
SYSTEM FAILURE ANALYSIS
SYSTEMS ANALYSIS
THERMAL CYCLING
THERMAL STRESSES
TIN
TITANIUM ALLOYS
TITANIUM BASE ALLOYS
TRANSITION ELEMENTS
VANADIUM