Finite Element Method for Analysis of Flexural Vibration Propagating in Ternary Phononic Crystal Thin Plates

Abstract:

Propagation of flexural vibration in a ternary phononic crystal thin plate with a point defect are explored using finite element method. The thin concrete plate is composed of steel cylinders hemmed around by rubber with a square lattice. Absolute band gaps, point defect bands and transmission response curves with low frequency are investigated. Comparing the results of finite element method with that of improved plane wave expansion method, precise identifications are obtained to identify the point defect states. The results show that the finite element method is suitable for the exploring of flexural vibration propagating in ternary phononic crystal thin plates.

• Periodical: Applied Mechanics and Materials (Volumes 256-259)
• Pages: 596-599
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.256-259.596
• Online since: December 2012
• Authors: Zong Jian Yao, Gui Lan Yu, Yue Sheng Wang
• Keywords: Finite Element Method (FEM), Flexural Vibration, Phononic Crystal, Point Defect, Thin Plate

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