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Calculation of stress intensity factor for functionally graded cylinders with two radial cracks using the weight function method

Mirahmadi, H ; Sharif University of Technology | 2016

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  1. Type of Document: Article
  2. DOI: 10.1016/j.tafmec.2016.06.004
  3. Publisher: Elsevier B.V , 2016
  4. Abstract:
  5. In this study, obtaining stress intensity factors (SIFs) for functionally graded cylinders with two internal radial cracks using the weight function method has been discussed. For this purpose, reference SIFs are calculated from the results of finite element analysis, using a modified domain of the J integral. Subsequently, SIFs have been calculated for different combinations of cylinder geometry, crack depth, and material gradation by implementing the weight function method and it is shown that the results are consistent with corresponding results obtained from finite element analysis. Moreover, the effects of variation in the elastic modulus ratio on SIFs have been investigated. © 2016 Elsevier Ltd
  6. Keywords:
  7. Functionally graded material ; Hollow cylinder ; Radial crack ; Stress intensity factor ; Weight function ; Beams and girders ; Cracks ; Cylinders (shapes) ; Functionally graded materials ; Stress intensity factors ; Crack depths ; Functionally graded cylinders ; Hollow cylinders ; J integral ; Material gradation ; Radial cracks ; Weight function method ; Weight functions ; Finite element method
  8. Source: Theoretical and Applied Fracture Mechanics ; Volume 85 , 2016 , Pages 447-456 ; 01678442 (ISSN)
  9. URL: http://www.sciencedirect.com/science/article/pii/S0167844216300477