A comparative study of the physical mode of vibration with free and constrained modes

This paper aims to study vibrations of delaminated composite beams by introducing the dynamic contact conditions to capture their physical behavior under various conditions. Therefore, a finite element model of delaminated beams is developed based on the first-order shear deformation theory, and the time response of the beam subjected to a harmonic point force is investigated under various conditions. The findings prove that this modeling approach can accurately demonstrate the physical behavior of delaminated composite beams, demonstrating opening behavior with no penetration occurrence within the delamination region.

کلیدواژه ها:

vibration analysis ، delaminated composite beams ، time response ، physical mode of vibration ، dynamic contact conditions