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A new experimental method for the accelerated characterization of composite materialsA method which permits the prediction of long-term properties of graphite/epoxy laminates on the basis of short-term (15 min) laboratory tests is described. Demonstration of delayed viscoelastic fracture in one laminate configuration, and data on the time and temperature response of a matrix-dominated unidirectional laminate contributed to a characterization of the viscoelastic process in the graphite/epoxy composites. Master curves from short-term tests of certain laminate configurations can be employed to generate long-term master curves. In addition, analytical predictions from short-term results can be used to predict long-term (25-hour) laminate properties.
Document ID
19790051984
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Brinson, H. F.
(Virginia Polytechnic Inst. and State Univ. Blacksburg, VA, United States)
Morris, D. H.
(Virginia Polytechnic Inst. and State Univ. Blacksburg, VA, United States)
Yeow, Y. T.
(Virginia Polytechnic Institute and State University Blacksburg, Va., United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1978
Subject Category
Composite Materials
Accession Number
79A35997
Funding Number(s)
CONTRACT_GRANT: NSG-2038
Distribution Limits
Public
Copyright
Other

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