Thermal acoustic fatigue of Ceramic Matrix Composite materials
A combined experimental/analytical study was performed on coupon and panel Ceramic Matrix Composite (CMC) specimens to demonstrate the capability of using high temperature random coupon fatigue data and finite element modeling techniques to predict full scale panel thermal-acoustic fatigue experimental results. Static load tests, low frequency fatigue, random fatigue coupon tests and full scale panel acoustic fatigue tests were performed at temperatures exceeding 1000 F. Using the information from the coupon tests in conjunction with a 3D ABAQUS finite element model, the failure time of the acoustic tests was successfully predicted using a combined loads fatigue approach. MDA's high temperature random fatigue facility and laser vibrometer data acquisition system were instrumental in providing the data required to develop consistent random fatigue curves which could be used for the combined loads full scale predictions. 4 refs.
- OSTI ID:
- 6301385
- Report Number(s):
- AIAA-Paper-93-1319; CONF-9304186-
- Resource Relation:
- Conference: 34. American Institute of Aeronautics and Astronautics/American Society of Mechanical Engineers (AIAA/ASME) adaptive structures conference, La Jolla, CA (United States), 19-22 Apr 1993; Other Information: 200-206
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
MATRIX MATERIALS
THERMAL FATIGUE
FINITE ELEMENT METHOD
CERAMICS
DATA ACQUISITION
FATIGUE
STATIC LOADS
TEMPERATURE RANGE 0400-1000 K
CALCULATION METHODS
MATERIALS
MECHANICAL PROPERTIES
NUMERICAL SOLUTION
TEMPERATURE RANGE
360203* - Ceramics
Cermets
& Refractories- Mechanical Properties