Quantification of Damage Evolution in Multilayered High Temperature Composites from Ultrasonic Measurements

New high temperature composite materials have potential to yield significant performance improvement and weight reduction in different components for aerospace applications (i.e. aircraft engines, airframe parts). For successful application of these materials in various environments their mechanical properties, life service capability and reliability must be known. The high cost of structures engineered from these materials makes experimental life determination very difficult. Thus the development of methodology for NDE of structures, combined with life prediction models using measured damage as input data, becomes very important