Characterization of the Nonlinear Elastic Properties of Graphite/Epoxy Composites Using Ultrasound

The normalized change in ultrasonic "natural" velocity as a function of stress and temperature was measured in a unidirectional laminate of T300/5208 graphite/ epoxy composite using a pulsed phase locked loop ultrasonic interferometer. These mea surements were used together with the linear...

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Veröffentlicht in:	Journal of reinforced plastics and composites 1990-03, Vol.9 (2), p.162-173
Hauptverfasser:	Prosser, William H., Green, Robert E.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences elasticity epoxy resins Exact sciences and technology Forms of application and semi-finished materials graphite Laminates Polymer industry, paints, wood Technology of polymers ultrasonic testing
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	The normalized change in ultrasonic "natural" velocity as a function of stress and temperature was measured in a unidirectional laminate of T300/5208 graphite/ epoxy composite using a pulsed phase locked loop ultrasonic interferometer. These mea surements were used together with the linear (second order) elastic moduli to calculate some of the nonlinear (third order) moduli of this material.
ISSN:	0731-6844 1530-7964
DOI:	10.1177/073168449000900206