Abstract
The band gap characteristics of phononic crystal is influenced by material and structure etc. Based on the transmission matrix method, the first band gap characteristics of one-dimensional phononic crystal were numerical simulation with different ratio, and these phononic crystals were made form aluminum, lead, steel, carbon and epoxy resin materials. These results show that phononic crystal structure made from high density materilal are more easier to form wide band gap, and there are also more easier to form wide band gap under the same proportion. These results provide theoretical basis for the design of one-dimensional phononic crystal devices.
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