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Damage Detection and Localization in Carbon Fiber Reinforced Polymer

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Damage Detection and Localization in Carbon Fiber Reinforced Polymer Composites Using High Definition Fiber Optic Sensors (HD-FOS)


The authors present work in which high spatial resolution (1.25mm) fiber optic strain sensors are incorporated into multiple carbon fiber composite structures and used to detect and assess the onset of damage from impacts and high cycle fatigue. The testing has included impacts on structural members (beams) and flat panels, as well as high cycle fatigue of beams. The completed work demonstrates the detection of residual strains associated with the impacts as an indication of a damage event, damage growth as the test article is exercised, localization of the damage in multiple dimensions, and the identification of buckling during fatigue cycling. A means of checking the state of health of the sensors is also demonstrated, ensuring that the measurements are reliable indicators of the state of the underlying composite structure.


Author: Dan Kominsky


Conference: SAMPE Seattle 2017


SKU/Code: SE17--0735

Pages: 15

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