王立群教授，中国石油大学（北京）

Phononic crystals are composite materials with periodic distribution of two or more media. The difficulty of computing the band structure of the phononic crystals lies in capturing the complex geometry and jump conditions effectively on the interface between the scatterer and the matrix. This talk will present the Petrov-Galerkin Finite Element Method for the band structure computation of phononic crystals, and the properties of various materials are also discussed.