심재의 수직 및 전단 변형을 고려한 알루미늄 하니컴코아 샌드위치 평판의 진동특성 해석

Effect of Normal and Shear Strains in Core Material on Vibrational Characteristics of Aluminum Honeycomb Core Sandwich Plate

Because the structural elements used in the automobile, astronautic and ship industries are put in dynamic loading environments, much interest is given to the damping of the structural elements, as well as high flexural rigidity and strength per density. Therefore, in this study, the structural damping value of the aluminum honeycomb sandwich plate(AHCP) has been experimentally extracted, and directly applied to the finite element, for the dynamic analysis of the plate considering the structural damping. The analysis results of this theory was compared with the results of the actual modal analysis method. It was observable that the two analyses concurred, establishing the structural damping and analysis method of the AHSP.