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Constitutive Modeling and Testing of Polymer Matrix Composites Incorporating Physical Aging at Elevated TemperaturesAdvanced polymer matrix composites (PMC's) are desirable for structural materials in diverse applications such as aircraft, civil infrastructure and biomedical implants because of their improved strength-to-weight and stiffness-to-weight ratios. For example, the next generation military and commercial aircraft requires applications for high strength, low weight structural components subjected to elevated temperatures. A possible disadvantage of polymer-based composites is that the physical and mechanical properties of the matrix often change significantly over time due to the exposure of elevated temperatures and environmental factors. For design, long term exposure (i.e. aging) of PMC's must be accounted for through constitutive models in order to accurately assess the effects of aging on performance, crack initiation and remaining life. One particular aspect of this aging process, physical aging, is considered in this research.
Document ID
19990004341
Acquisition Source
Langley Research Center
Document Type
Other
Authors
Veazie, David R. (Clark-Atlanta Univ. GA United States)
Date Acquired
September 6, 2013
Publication Date
January 1, 1998
Subject Category
Composite Materials
Funding Number(s)
CONTRACT_GRANT: NAG1-1727
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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