Vibration property of periodic pipe with functionally graded materials

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Journal of Vibration and Shock ›› 2018, Vol. 37 ›› Issue (4) : 170-176.

DU Chunyang YU Dianlong WEN Jihong LIU Jiangwei JIA Pengfei

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Abstract

In order to control the vibration of the pipe, the vibration propertiesof periodic beamwith functionally graded material(FGM)are investigated. Based on finite element method, the band gap of periodic pipeline with functionally graded materials was calculated.The properties oftunable band gap of FGM are discussed in detail, such as the length of pipe with functionally graded materials in cell unit, properties of transition function. Results show that a considerable stress concentration can be alleviated by the application of this FGM. The results reveal that the band gap of classic periodic pipeline can be improved as well as the stress concentration problem because of the functionally graded materials.The FGMs can be used to provide a new way for tunableband gap and eliminating the stress concentration.

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Functionally graded materials / periodic pipe / Band gap / Stress concentration

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DU Chunyang YU Dianlong WEN Jihong LIU Jiangwei JIA Pengfei. Vibration property of periodic pipe with functionally graded materials[J]. Journal of Vibration and Shock, 2018, 37(4): 170-176

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