Journal
ADVANCED COMPOSITE MATERIALS
Volume 28, Issue 1, Pages 1-26Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/09243046.2017.1406684
Keywords
optimal design; damping; composite materials; transverse shear deformation; lamination parameters; differential evolution
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This paper deals with the damping characteristics of symmetrically laminated plates with transverse shear deformation. First, the effect of laminate configuration on the damping characteristics is investigated for cantilevered laminated plates based on the Reissner-Mindlin's first-order shear deformation theory. To examine the effect of laminate configuration, the concept of specific damping capacity is introduced and the damping characteristics are represented on the lamination parameter plane, where the damped stiffness invariants in transverse shear are newly proposed in this paper. Next, the optimal laminate configurations for the cantilevered laminated plates with maximal damping are determined taking into account the transverse shear effect by using differential evolution in which lamination parameters are used as intermediate design variables. The relation between the laminate configurations and the damping characteristics is discussed based on the concept of lamination parameters.
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