Multi-scale Modeling of Acoustic Shielding Materials
PhD Candidate: Ir. Kun Gao
1st promoter: Prof.dr.ir. M.G.D. Geers
Co-promoter & supervisor: Dr.ir. J.A.W. van Dommelen
Project Financing: STW project, Acoustic Shielding of High-Tech Systems – a combined passive-active approach
Project Period: March 2012 - February 2016
This PhD project aims to develop a multiscale model of acoustic porous materials. A homogenization method is proposed to investigate the relation between the microstructure and the resulting macroscopic properties. The macroscopic absorption ability is mainly due to the microscopic fluid-solid coupling in the associated Representative Volume Element (RVE). A case study of a 3D idealized cubic microstructure shows that the modification based on the homogenization method improves the prediction of the resonance frequency compared to Biot’s poroelastic theory.