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김찬중(Chan-Jung Kim),김선진(Seon-Jin Kim),김병탁(Byung-Tak Kim),손정현(Jeong-Hyun Sohn),강인필(Inpil Kang),윤문철(Moon-Cheol Yoon) 대한기계학회 2020 대한기계학회 춘추학술대회 Vol.2020 No.12
The dynamic characteristics of Carbon-Fiber-Reinforced Plastic(CFRP) was dependent on the direction of carbon fiber owing to the variation of structural stiffness as well as damping coefficient. The system dynamics can be identified through impact testing and mode shape in each resonance frequency is one of indicator to show the dynamic behavior in a frequency domain. Five CFRP specimens were prepared to conduct the impact testing and the comparison between two independent modes was done using modal assurance criterion(MAC).