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Sliding Contact Problem of a Round Wedge with a FGM Coated Substrate with Finite Element Method

Babaei, Ramzan | 2012

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 43014 (45)
  4. University: Sharif University of Technology
  5. Department: Aerospace Engineering
  6. Advisor(s): Adib Nazari, Saeid
  7. Abstract:
  8. Most of the current application and potential FGM included in the areas related to contact mechanic .These issues essentially are related to the transfer of force between two objects, that in general is with friction, so in this study the contact under the loading of horizontal and vertical with its different aspect such as the effect of contact region, the effect of round and also the effect of getting harden and soften of FGM.
    The used method is a numerical method ¬(finite element method) that will resulted in contact equation discretisce by use of Penalty method. In this thesis is also presented the needed algorithms for solving the problem and the finite element code for solving the structures under this contact loading and different example will be solved in linear and nonlinear region.
    At first, in this method the study of rigid rectangle paunch contact with a half space with FGM coated under the vertical and horizontal were concerned and have been compared with existed results.
    Then the stress distribution diagram will be drawn and also the edge of a wedge will be studied and then the compression between round edge and cylinder paunch will be done and at the stress distribution diagram of one rounded edge with arbitrary profile will be drawn
  9. Keywords:
  10. Finite Element Method ; Asymmetry ; Rounded Apex Edge ; Contact Problem ; Penalty Function

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