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Vibration Response: A Non-Destructive Test for Fatigue Crack Damage in Filament-Reinforced Composites *Department of Materials Engineering University of Illinois at Chicago Circle Chicago, Illinois 60680
Department of Materials Engineering University of Illinois at Chicago Circle Chicago, Illinois 60680 Laminated, filament-reinforced epoxy beam specimens were fa tigued in vibratory flexure. The complex modulus of the specimens was measured periodically as fatigue crack damage accumulated. Changes in the real and imaginary parts of the modulus correlated with the amount of crack damage. The imaginary part of the modulus changed substantially. Measurement of these vibration response changes shows promise as a means to nondestructively test the structural integrity of filament-reinforced composite structural mem bers.
Journal of Composite Materials, Vol. 5, No. 3,
394-404 (1971) This article has been cited by other articles:
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