The out-of-plane quasi-static compressive behavior of four types of corrugated cores (V-type, U-type, X-type and Y-type core) has been investigated by experiment and FE simulations. By transient dynamic finite element analysis code MSC.Dytran numerical simulations were performed for calculating crushing forces, deformation mode and energy absorption. The FE simulations predict the crush behavior of cores with reasonable accuracy and provide the whole progressive buckling process and deformation modes. Experiment and simulation indicate that the U-type core, V-type core and X-type core structures show excellent crushing resistance performance and energy absorption characteristic. The crush performance of the Y-type core structures is relatively poor because of bending mode.

The vibration characteristics of the structure are important parameters of structural design if want to accurately grasp the vibration characteristics of the structure, the testing methods must be proper. At the present time, pulsation, free vibration, vibrating load are the common methods, This article adopts pulsation, knocking, initial displacement, white noise sweeping, and simple harmonic waves knocking to test the vibration characteristics of the structure and studies the characteristics of those testing methods.