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Interlaminar stress analysis of general composite laminates

Yazdani Sarvestani, H ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1016/j.ijmecsci.2011.07.007
  3. Abstract:
  4. In this study, based on the reduced from of elasticity displacement field for a long laminate, an analytical method is established to exactly obtain the interlaminar stresses near the free edges of generally laminated composite plates under the extension and bending. The constant parameters, which describe the global deformation of a laminate, are properly computed by means of the improved first-order shear deformation theory. Reddys layerwise theory is subsequently utilized for analytical and numerical examinations of the boundary layer stresses within arbitrary laminated composite plates. A variety of numerical results are obtained for the interlaminar normal and shear stresses along the interfaces and through the thickness of laminates near the free edges. Finally the effects of end conditions of laminates on the boundary-layer stress are examined
  5. Keywords:
  6. General composite laminates ; Improved first-order shear deformation theory (IFSDT) ; Interlaminar stresses ; Layerwise theory (LWT) ; Analytical method ; Composite laminate ; Constant parameters ; Displacement field ; End conditions ; First-order shear deformation theory ; Free edge ; Global deformations ; Interlaminar ; Interlaminar stress ; Laminated composite plates ; Layer-wise theory ; Numerical examination ; Numerical results ; Boundary layers ; Elasticity ; Laminating ; Nanocomposite films ; Plates (structural components) ; Shear deformation ; Stress analysis ; Laminated composites
  7. Source: International Journal of Mechanical Sciences ; Volume 53, Issue 11 , 2011 , Pages 958-967 ; 00207403 (ISSN)
  8. URL: http://www.sciencedirect.com/science/article/pii/S0020740311001548