On Thermodynamics of Nonlinear Poroelastic Materials

2006 ◽  
pp. 763-777
Author(s):  
K. Wilmańnski
Keyword(s):  
Poroelastic Materials

Acoustic Green's Function Approximations

1998 ◽  
Vol 06 (04) ◽  
pp. 435-452 ◽  
Author(s):  
Robert P. Gilbert ◽  
Zhongyan Lin ◽  
Klaus Hackl
Keyword(s):  
Inverse Problem ◽  
Normal Mode ◽  
Eigenvalue Problems ◽  
Normal Modes ◽  
Modal Parameters ◽  
Mindlin Plate ◽  
Ocean Bottom ◽  
Hankel Transformation ◽  
Poroelastic Materials ◽  
Function Approximations

Normal-mode expansions for Green's functions are derived for ocean–bottom systems. The bottom is modeled by Kirchhoff and Reissner–Mindlin plate theories for elastic and poroelastic materials. The resulting eigenvalue problems for the modal parameters are investigated. Normal modes are calculated by Hankel transformation of the underlying equations. Finally, the relation to the inverse problem is outlined.

scholarly journals Review of Finite Element Vehicle Interior Acoustic Simulations Including Porous Materials

2019 ◽  
Author(s):  
János Csaba Kun ◽  
Daniel Feszty
Keyword(s):  
Finite Element ◽  
State Of The Art ◽  
Academic Research ◽  
Simulation Methods ◽  
Vehicle Engineering ◽  
Vehicle Interior ◽  
Poroelastic Materials ◽  
Recent Trends ◽  
Noise Vibration ◽  
Difficult Issue

Recent trends in vehicle engineering require manufacturers to develop products with highly refined noise, vibration and harshness levels. The use of trim elements, which can be described as Poroelastic materials (PEM), are key to achieve quiet interiors. Finite Element Methods (FEM) provide established solutions to simple acoustic problems. However, the inclusion of poroelastic materials, especially at higher frequencies, proves to be a difficult issue to overcome. The goal of this paper was to summarize the state-of-the-art solutions to acoustic challenges involving FEM-PEM simulation methods. This involves investigation of measurement and simulation campaigns both on industrial and fundamental academic research levels.

On the dynamic behavior of poroelastic materials

1979 ◽  
Vol 65 (1) ◽  
pp. 90-95 ◽  
Author(s):  
A. M. Wijesinghe ◽  
H. B. Kingsbury
Keyword(s):  
Dynamic Behavior ◽  
Poroelastic Materials
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