Structural Engineering and Mechanics

  • 제59권1호
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  • Pages.101-122
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  • 2016
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Exact analysis of bi-directional functionally graded beams with arbitrary boundary conditions via the symplectic approach

  • Zhao, Li (Department of Civil Engineering, Ningbo University of Technology) ;
  • Zhu, Jun (College of Mechanical Engineering, Zhejiang University of Technology) ;
  • Wen, Xiao D. (College of Electrical and Information Engineering, Yunnan Minzu University)
  • 투고 : 2015.11.07
  • 심사 : 2016.03.15
  • 발행 : 2016.07.10
⟨ 이전 논문 다음 논문 ⟩

초록

Elasticity solutions for bi-directional functionally graded beams subjected to arbitrary lateral loads are conducted, with emphasis on the end effects. The material is considered macroscopically isotropic, with Young's modulus varying exponentially in both axial and thickness directions, while Poisson's ratio remaining constant. In order to obtain an exact analysis of stress and displacement fields, the symplectic analysis based on Hamiltonian state space approach is employed. The capability of the symplectic framework for exact analysis of bi-directional functionally graded beams has been validated by comparing numerical results with corresponding ones in open literature. Numerical results are provided to demonstrate the influences of the material gradations on localized stress distributions. Thus, the material properties of the bi-directional functionally graded beam can be tailored for the potential practical purpose by choosing suitable graded indices.

키워드

과제정보

연구 과제 주관 기관 : National Natural Science Foundation of China

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피인용 문헌

  1. Measurement Model for Young's Modulus of Axially Functionally Graded Materials vol.748, 2017, https://doi.org/10.4028/www.scientific.net/KEM.748.391
  2. Study on thermal buckling and post-buckling behaviors of FGM tubes resting on elastic foundations vol.66, pp.6, 2016, https://doi.org/10.12989/sem.2018.66.6.729
  3. Free vibrations analysis of arbitrary three-dimensionally FGM nanoplates vol.8, pp.2, 2016, https://doi.org/10.12989/anr.2020.8.2.115
  4. Bending and free vibrational analysis of bi-directional functionally graded beams with circular cross-section vol.41, pp.10, 2016, https://doi.org/10.1007/s10483-020-2670-6