Structural Engineering and Mechanics

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Influence of a soft FGM interlayer on contact stresses under a beam on an elastic foundation

  • Aizikovich, Sergey M. (Research and Education Center "Materials", Don State Technical University) ;
  • Mitrin, Boris I. (Research and Education Center "Materials", Don State Technical University) ;
  • Seleznev, Nikolai M. (Research and Education Center "Materials", Don State Technical University) ;
  • Wang, Yun-Che (Department of Civil Engineering, National Cheng Kung University) ;
  • Volkov, Sergey S. (Research Institute for Mechanics, Lobachevsky State University of Nizhni Novgorod)
  • Received : 2015.10.11
  • Accepted : 2016.01.29
  • Published : 2016.05.25
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Abstract

Contact interaction of a beam (flexible element) with an elastic half-plane is considered, when a soft inhomogeneous (functionally graded) interlayer is present between them. The beam is bent under the action of a distributed load applied to the surface and a reaction of the elastic interlayer and the half-space. Solution of the contact problem is obtained for different values of thickness and parameters of inhomogeneity of the layer. The interlayer is assumed to be significantly softer than the underlying half-plane; case of 100 times difference in Young's moduli is considered as an example. The influence of the interlayer thickness and gradient of elastic properties on the distribution of the contact stresses under the beam is studied.

Keywords

Acknowledgement

Supported by : National Science Council of Taiwan (NSC)

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