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Accelerated characterization of graphite/epoxy compositesA method to predict the long term compliance of unidirectional off-axis laminates from short term laboratory tests is presented. The method uses an orthotropic transformation equation and the time-stress-temperature superposition principle. Short term tests are used to construct master curves for two off-axis unidirectional laminates with fiber angles of 10 and 90 degrees. Analytical predictions of long term compliance for 30 and 60 degrees laminates are made. Comparisons with experimental data are also given.
Document ID
19810002602
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Griffith, W. I. (Virginia Polytechnic Inst. and State Univ. Blacksburg, VA, United States)
Morris, D. H. (Virginia Polytechnic Inst. and State Univ. Blacksburg, VA, United States)
Brinson, H. F. (Virginia Polytechnic Inst. and State Univ. Blacksburg, VA, United States)
Date Acquired
September 4, 2013
Publication Date
September 1, 1980
Subject Category
Composite Materials
Report/Patent Number
VPI-E-80-27
NASA-CR-163723
Report Number: VPI-E-80-27
Report Number: NASA-CR-163723
Meeting Information
Meeting: Intern. Conf. on Composite Mater.,
Location: Paris
Country: France
Start Date: August 26, 1980
End Date: August 29, 1980
Accession Number
81N11110
Funding Number(s)
CONTRACT_GRANT: NSG-2038
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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