Defects inspection of CFRP structure by thermography and holographic interferometry

• Main Authors: Sheng-Feng Chang, 張勝峰
• Other Authors: 黃敏睿
• Format: Others
• Language: zh-TW
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/34335077427786203964

碩士 === 國立中興大學 === 機械工程學系所 === 102 === This study utilizes Infrared thermography and Amplitude-fluctuation ESPI(AF-ESPI) to detect defects.The part of Thermal Imaging was using the method of producing heat to make the surface of the carbon-fiber-reinforced-polymer creating the difference of the color temperature.In the part of defect-depth analysis, through the One-dimensional heat conduction equation to get the maximum temperature difference of the time and the depth to calculate the defect depth.The AF-ESPI part is used to investigate the dynamic behavior of the defect sample and to understand the internal defects’ effect from different Vibration modal.And to compare the defect detection capabilities of both methods that above-mentioned.