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Relief of edge effects in bi-adhesive composite joints

Yousefsani, S. A ; Sharif University of Technology | 2017

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  1. Type of Document: Article
  2. DOI: 10.1016/j.compositesb.2016.09.099
  3. Publisher: Elsevier Ltd , 2017
  4. Abstract:
  5. Three-dimensional thermo-mechanical stress analysis of composite joints with bi-adhesive bonding is presented using the full layerwise theory. Based on three-dimensional elasticity theory, sets of fully coupled governing differential equations are derived using the principle of minimum total potential energy and are simultaneously solved using the state space approach. Results show that bi-adhesive bonding substantially relieves the edge effects. Moreover, series of parametric studies reveal the nonlinear effects of bonding length ratio and the relative stiffness and coefficient of thermal expansion of the mid- and side-adhesives. It is also concluded that the optimum design of a bi-adhesive joint crucially depends on the loading/boundary conditions. © 2016 Elsevier Ltd
  6. Keywords:
  7. Analytical modelling ; Bi-adhesive bonding ; Joints ; Laminates ; Stress concentrations ; Adhesive joints ; Analytical models ; Differential equations ; Joints (structural components) ; Potential energy ; Stress analysis ; Stress concentration ; Thermal expansion ; Bi adhesives ; Bi-adhesive joints ; Governing differential equations ; Minimum total potential energies ; Relative stiffness ; State space approach ; Thermo-mechanical stress ; Three-dimensional elasticity theories ; Stresses
  8. Source: Composites Part B: Engineering ; Volume 108 , 2017 , Pages 153-163 ; 13598368 (ISSN)
  9. URL: https://www.sciencedirect.com/science/article/pii/S1359836816308290