학술논문

Influence of Surface Effect on the Equivalent Properties of Nanoporous Materials with Elastic Waves
Document Type
Conference
Source
2020 15th Symposium on Piezoelectrcity, Acoustic Waves and Device Applications (SPAWDA) Piezoelectrcity, Acoustic Waves and Device Applications (SPAWDA), 2020 15th Symposium on. :49-53 Apr, 2021
Subject
Fields, Waves and Electromagnetics
Surface waves
Scattering
Surface acoustic wave devices
Elasticity
Nanoporous materials
Nanoscale devices
Stress
Surface effect
Equivalent properties
Elastic waves
Language
Abstract
The multiple scattering of elastic waves by uniformly arranged nanopores and the equivalent properties of nanoporous materials are studied in this paper. By using displacement potential function method, the stress fileds and strain fields around nanopores and the matrix are solved in accordance with the classical elasticity theory and surface elasticity theory. The equivalent bulk moduli and shear moduli of nanoporous materials are studied using the Mori-Tanaka method. Results show that the equivalent properties of nanoporous materials not only depend on the surface parameters but are also affected by the volume percentage of the holes.