Structural Engineering and Mechanics

  • 제87권1호
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  • Pages.95-106
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  • 2023
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

The dynamic response of the FGM coated half-plane with hysteretic damping under time harmonic loading

  • Xiao-Min Wang (Institute of Engineering Mechanics, Beijing Jiaotong University) ;
  • Liao-Liang Ke (Institute of Engineering Mechanics, Beijing Jiaotong University) ;
  • Yue-Sheng Wang (School of Mechanical Engineering, Tianjin University)
  • 투고 : 2022.08.19
  • 심사 : 2023.05.24
  • 발행 : 2023.07.10
⟨ 이전 논문 다음 논문 ⟩

초록

This paper investigates the dynamic response of a functionally graded material (FGM) coated half-plane excited by distributed time harmonic loading. Three types of typical distributed surface loads, including uniform load, Hertz load, and square-root singular load, are considered. The mass density and elastic modulus of the FGM coating are supposed to be described by the exponential function. The material damping is modelled by a linearly hysteretic damping which is expressed by a complex modulus in the time harmonic motion. Using Fourier integral transform technique and numerical integral method, the effects of the excitation frequency, gradient index, damping, and load type on the dynamic stresses and displacements are discussed.

키워드

과제정보

The authors acknowledge the financial supports from the National Natural Science Foundation of China (Nos. 11725207, 12021002 and 12072226), and the Fundamental Research Funds for the Central Universities (No. 2020YJS104).

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