고유진동수를 이용한 굽은 보의 크랙 탐색

This study presents a crack identification procedure in curved beams. Even though the subject of crack identification in straight beams has been extensively investigated by many researchers, there exist only few studies that dealt with the crack identification in curved beams. The forward problem is solved using the finite element method and the crack is represented as massless rotational spring model. The Newton-Raphson iteration method is used in the inverse problem to identify the location and the size of the crack. The present study provides numerical examples which are in good agreement with the actual crack parameters.