Abstract
We determined the complete five-component transverse-isotropic-symmetry elastic-constant tensor for two graphite fibers: high-strength/low-modulus and low-strength/high-modulus. We did this in two steps. First, we measured ultrasonically the complete elastic constants of a metal matrix with embedded uniaxial graphite fibers. Second, we did an inverse—modeling calculation to extract the fiber’s elastic constants. This calculation requires three inputs: composite elastic constants, matrix elastic constants, and fiber-matrix phase geometry, principally the fiber volume fraction. We compare the results with those expected for a random quasiisotropic graphite aggregate and for a hypothetical graphite fiber with perfectly aligned basal planes.
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© 1989 Springer Science+Business Media New York
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Datta, S., Ledbetter, H., Kyono, T. (1989). Graphite-Fiber Elastic Constants: Determination from Ultrasonic Measurements on Composite Materials. In: Thompson, D.O., Chimenti, D.E. (eds) Review of Progress in Quantitative Nondestructive Evaluation. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-0817-1_186
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DOI: https://doi.org/10.1007/978-1-4613-0817-1_186
Publisher Name: Springer, Boston, MA
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