Vibration of poroelastic beams with axial diffusion

摘要

Transverse vibrations of fluid saturated poroelastic beams are investigated. The material microstructure is such that fluid movement is facilitated in the axial direction while being zero or negligible in transverse directions. Solutions are found for free and forced vibrations. The nature of the behavior patterns found is considered and comparisons are made with the types of behavior exhibited by damped elastic beams. It is found that the behavior of the present system can diverge qualitatively from that found in damped elastic beams.