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2004•Journal of Functional BiomaterialsOpen access

The effects of unit dimension on band gaps for two-dimensional square arrays of stainless steel cylinders in air

Zhao Hong-gang

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Abstract

Using the plane-wave expansion (PWE) method, the influences of unit dimension on band gaps of 2D phononic crystal composed of square arrays of stainless steel cylinders in air were discussed in this paper. Numerical result shows that the width of the lowest band gap increases (decreases) with increasing the filling fraction (lattice constant); The center frequency of the lowest gapwas about independent of the cylinder radius, but gets lower with increasing lattice constant.

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What this paper is about

Using the plane-wave expansion (PWE) method, the influences of unit dimension on band gaps of 2D phononic crystal composed of square arrays of stainless steel cylinders in air were discussed in this paper. Numerical result shows that the width of the lowest band gap increases (decreases) with increasing the filling fraction (lattice constant); The center frequency of the lowest gapwas about independent of the cylinder radius, but gets lower with increasing lattice constant.

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Available abstract

Using the plane-wave expansion (PWE) method, the influences of unit dimension on band gaps of 2D phononic crystal composed of square arrays of stainless steel cylinders in air were discussed in this paper. Numerical result shows that the width of the lowest band gap increases (decreases) with increasing the filling fraction (lattice constant); The center frequency of the lowest gapwas about independent of the cylinder radius, but gets lower with increasing lattice constant.

Key concepts: Materials science, Plane wave expansion method, Lattice constant, RADIUS, Square lattice, Square (algebra), Band gap, Cylinder

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