FRP積層平板のフレキシビリティ制約に関するテイラーリング設計

概要

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This paper deals with a method of changing fiber orientations or thickness of plies in order to satisfy flexibility constraints imposed on fiber-reinforced plastic (FRP) laminated plate. The flexibility matrix of the laminated plate is defined as the inverse of the stiffness matrix, and its sensitivities with respect to design variables are computed in the context of the finite element method. Several components of the flexibility matrix are shifted to their prescribed values by a modified Newton's method. The numerical examples to demonstrate the validity of the proposed method are concerned with graphite/epoxy laminated plate. First, homologous deformation is investigated to check the proposed method with six plies, using six fiber orientations as design variables. The possibility of passive deformation control free from variability of magnitude and mode of loading is investigated by setting two flexibility components equal to zero in the second example. The effect of ply thickness change is also investigated numerically.
社団法人日本機械学会の論文
1996-04-25