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A method for optimally designing amounted plates subject to fatigue loads for minimum weight using a cumulative damage constraint

机译：一种使用累积损伤约束来优化设计承受疲劳载荷的平板的方法，以最小的重量

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摘要

A procedure to optimally design laminated plates for a specific cyclic life using a cumulative damage constraint is described. The objective is minimum weight, and the design variables are the fiber orientation, and the plate thickness. The pates are subjected to cyclic bending loads, and the finite element method, in conjunction with the Golden Section method, is used to determine the design variables optimally. The FE formulation is based on Mindlin theory for moderately thick laminated plates and shells, and the formulation includes bending-twisting coupling. In order to demonstrate the procedure, several plates with differing events, load magnitudes and type, aspect ratios, boundary conditions and cyclic lives are optimized, and compared.
机译：描述了使用累积损伤约束为特定循环寿命优化设计层压板的过程。目标是最小重量，设计变量是纤维方向和板厚度。板块承受周期性的弯曲载荷，而有限元方法与黄金分割法一起用于确定设计变量。 FE配方基于Mindlin理论，用于中等厚度的层压板和壳体，并且该配方包括弯扭耦合。为了演示该程序，优化并比较了具有不同事件，载荷大小和类型，纵横比，边界条件和循环寿命的几个板。

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