A Study of the Mechanical Response of Nonwovens Excited by Plate Vibration

Nonwovens are a type of textile that possess wide range unique properties, such as lightweight and damping characteristics, which make them suitable for many applications in medicine engineering. In this study, the focus lies on mechanical response nonwovens multiphase porous layer excited by an underlying vibrating plate. The material properties characterized via laboratory measurements applied to different samples. particular, dynamic analysis thin plate is carried out obtain its eigenmodes and, thus, maximum response. These then utilized boundary conditions advanced numerical media model simulate anisotropic fibrous material. To understand coupled processes material, three-dimensional initial-boundary-value problem dynamics introduced. results demonstrate capability proposed realize interplay between pore-air pressure effective stresses during vibration role pore air vibration-induced fiber-fiber friction reduction well effectiveness dissipation kinetic energy, i.e., propagating acoustic waves.