Optimum Composite Laminates Least Prone to Delamination under Mechanical and Thermal Loads

  • B. L. Karihaloo
Part of the CISM International Centre for Mechanical Sciences book series (CISM, volume 474)


In this Chapter we will describe how optimum laminate configurations are sought for multidirectional fibre-reinforced composite laminates under combined in-plane mechanical and thermal loads. The design objective is to enhance the value of the loads over and above the first-ply-failure loads which are judged by a transverse failure criterion and the Tsai-Hill criterion, respectively. The in situ strength parameters previously obtained are incorporated in these criteria. It is found that the optimum designs under combined mechanical and thermal loads are not the same as those under pure mechanical loads for three of the four loading cases studied. For all cases the optimum loads are significantly larger than those for a quasi-isotropic design.


Stress Intensity Factor Composite Laminate Stress Intensity Factor Transverse Crack Matrix Crack 
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© CISM, Udine 2005

Authors and Affiliations

  • B. L. Karihaloo
    • 1
  1. 1.School of EngineeringCardiff UniversityCardiffUK

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