On The Use Of Accelerated Test Methods For Characterization Of Advanced Composite Materials

On the Use of Accelerated Test Methods for Characterization of Advanced Composite Materials

A rational approach to the problem of accelerated testing for material characterization of advanced polymer matrix composites is discussed. The experimental and analytical methods provided should be viewed as a set of tools useful in the screening of material systems for long-term engineering properties in aerospace applications. Consideration is given to long-term exposure in extreme environments that include elevated temperature, reduced temperature, moisture, oxygen, and mechanical load. Analytical formulations useful for predictive models that are based on the principles of time-based superposition are presented. The need for reproducible mechanisms, indicator properties, and real-time data are outlined as well as the methodologies for determining specific aging mechanisms.Gates, Thomas S.Langley Research CenterPOLYMER MATRIX COMPOSITES; ACCELERATED LIFE TESTS; MICROSTRUCTURE; LIFE (DURABILITY); AGING (MATERIALS); MECHANICAL PROPERTIES; AEROSPACE ENGINEERING; AEROSPACE ENVIRONMENTS; RELIABILITY ANALYSIS; PERFORMANCE PREDICTION

On the Use of Accelerated Test Methods for Characterization of Advanced Composite Materials

Advances in Fracture and Damage Mechanics VII

Selected, peer reviewed papers from 7th International Conference on Fracture and Damage Mechanics, FDM 2008, 9-11 September, 2008, Korea