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Damage Effect on Glass Fibre Reinforced Plastics under Airflow by a Continuous Wave Laser
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 Title & Authors
Damage Effect on Glass Fibre Reinforced Plastics under Airflow by a Continuous Wave Laser
Lee, Kwang Hyun; Shin, Wan-Soon; Kang, Eung-Cheol;
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We analyzed the damage effect on Glass Fibre Reinforced Plastics(GFRP) under air flow by irradiation of continuous wave near-IR laser. Damage process and temporal temperature distribution were demonstrated and material characteristics were observed with laser intensity, surface flow speed and angle. Surface temperature on GFRP rapidly increased with laser intensity, and the damaged pattern was different with flow characteristics. In case of no flow, penetration on GFRP by burning and flame generation after laser irradiation was appeared at once. GFRP was penetrated by the heat generated from resin ignition. In case of laser irradiation under flow, a flame generated after burning extinguished at once by flow and penetration pattern on GFRP were differently shown with flow angle. From the results, we presented the damage process and its mechanism.
CW Laser;GFRP;Air Flow;Laser Damage Effect;
 Cited by
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