Minimum weight design of laminated composites with strength constraints under a single in-plane loading.

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  • 単一の面内荷重を受ける積層材の強度制約下の最小重量設計
  • タンイツ ノ メンナイ カジュウ オ ウケル セキソウザイ ノ キョウド セイ

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Abstract

The present paper shows a reliable and efficient optimization approach on a minimum weight design of laminated composites under a single in-plane loading. Layer orientation angles as well as layer thicknesses are used as design variables, and the optimization technique is based upon a mathematical programming method. Transformed design variables with respect to the layer orientation angles in the principal loading direction are introduced to reduce the nonlinearity between strength constraints and design variables. A technique is also proposed to delete the strength constraints of almost zero thickness layers.

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