The Finite Element Method for Porous Materials

To reduce the noise and vibration perturbations, it is beneficial to use the dissipative properties of poroelastic materials. These materials are generally not used alone, but rather inserted in composite mechanical assemblies made of elastic structures, poroelastic materials and air insertions. If these structures are assemblies of layers of materials, they are called multilayer complexes. If the porous material is modified by an addition of solid or fluid inclusions, the term heterogenous porous material is widely used. To predict the vibratory response of such assemblies, closed form solutions can not generally be obtained and the calculation of the vibroacoustic response must then be calculated using numerical techniques.