ESPI를 이용한 충격손상을 받은 복합재료 내부결함의 정량평가

Quantitative Evaluation of Impact Defects inside of Composite Material Plate by ESPI

Electronic Speckle Pattern for quantitative evaluation of a impact defect inside of composite material plate are described. The impact on composite material makes inside delamination which is difficult to detect visual inspection and ultrasonic testing due to non-homeogenous structure. This paper proposes the quantitative evaluation technique of defects under real impact. Artificial defects are designed inside of composite plate for development of inspection technique and real defects under impact are inspected and compared with results of visual inspection.