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Optimal design of laminated composite structures with ply drops using stacking sequence tables

机译:使用堆积顺序表的带层滴的层状复合结构的优化设计

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摘要

This article introduces the concept of stacking sequence table (SST) for the optimal design of laminated composite structures with ply drops. The SST describes the sequence of ply-drops ensuring the transition between a thick guide laminate and a thinner one. A blended design is represented by a SST combined with a thickness distribution over the regions of the structure. An evolutionary algorithm is specialized for SST-based blending optimization. Optimization of the sequence of ply-drops with the proposed algorithm enables satisfying design guidelines that could not have been considered in previous studies. An extensive set of design guidelines representative of the actual industrial requirements is introduced. The method is applied to an 18-panel benchmark problem from the literature with convincing results. In particular, the present results show that strength-related guidelines can be enforced without significantly penalizing the stiffness behavior and consequently the mass of the structure.
机译:本文介绍了堆叠顺序表(SST)的概念,用于带层滴的层压复合结构的最佳设计。 SST描述了确保在厚的导向层压板和较薄的导向层压板之间过渡的帘布层顺序。混合设计由SST和结构区域上的厚度分布组合而成。进化算法专用于基于SST的混合优化。利用所提出的算法对层状液滴的顺序进行优化,可以满足以前的研究中未曾考虑过的令人满意的设计准则。介绍了一系列代表实际工业需求的设计准则。将该方法应用于文献中的18面板基准问题,结果令人信服。特别地,当前结果表明,可以执行与强度有关的准则,而不会显着损害刚度行为以及结构的质量。

著录项

  • 来源
    《Composite Structures》 |2014年第1期|559-569|共11页
  • 作者单位

    Onera, The French Aerospace Lab, F-92322 Chatillon, France;

    Onera, The French Aerospace Lab, F-92322 Chatillon, France,Ecole Nationale Superieure des Mines de Saint-Etienne, F-42023 Saint-Etienne, France;

    Onera, The French Aerospace Lab, F-92322 Chatillon, France;

    Ecole Nationale Superieure des Mines de Saint-Etienne, F-42023 Saint-Etienne, France,CNRS L1MOS UMR 6158, France;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Composite laminate; Blending; Stacking sequence table (SST); Evolutionary optimization;

    机译:复合层压板;混合;堆叠顺序表(SST);进化优化;

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