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Robust design - A concept for imperfection insensitive composite structures

机译:坚固的设计-不完美的不敏感复合结构的概念

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摘要

Robust design is a philosophy that aims to ensure that a structure will be tolerant to unknown variations and imperfections. This is an important consideration as highly optimised critical structures are required to survive unexpected loading and operating conditions. In some ways, robust design appears to be similar to damage tolerant design but its application to aerospace structural design is neither well established nor understood. In order to demonstrate the differences between the two concepts, a stiffened composite panel has been analysed for damage tolerance and robustness properties. Damage tolerance has been studied experimentally with the panel subjected to impact damage. The effect of laminate stacking sequence on the robustness of the panel has been assessed using finite element analysis and a Robust Index applied to quantify the robustness. The differences between designs are discussed together with the possible future directions for robust design applied to aerospace composite structures.
机译:健壮的设计是一种哲学,旨在确保结构能够容忍未知的变化和缺陷。这是一个重要的考虑因素,因为需要高度优化的关键结构来承受意外的负载和运行条件。在某些方面,健壮的设计似乎与耐损伤设计相似,但其在航空航天结构设计中的应用既不完善,也不容易理解。为了证明这两个概念之间的差异,已经对加固的复合板进行了损伤容限和稳健性分析。已经通过对面板遭受冲击损伤的实验研究了其损伤耐受性。层压板堆叠顺序对面板坚固性的影响已使用有限元分析和适用于量化坚固性的稳健指数进行了评估。讨论了设计之间的差异以及适用于航空复合材料结构的稳健设计的未来可能方向。

著录项

  • 来源
    《Composite Structures》 |2010年第6期|1469-1477|共9页
  • 作者单位

    School of Mechanical and Manufacturing Engineering, University of New South Wales (UNSW), Sydney, NSW 2052, Australia;

    School of Mechanical and Manufacturing Engineering, University of New South Wales (UNSW), Sydney, NSW 2052, Australia;

    School of Mechanical and Manufacturing Engineering, University of New South Wales (UNSW), Sydney, NSW 2052, Australia;

    Cooperative Research Centre for Advanced Composite Structures (CRC-ACS) Ltd., 506 Lorimer Street, Fishermans Bend, VIC 3207, Australia;

    Institute for Composite Structures and Adaptive Systems, German Aerospace Center (DLR), Lilianthalplatz 7, 38108 Braunschweig, Germany Private University of Applied Sciences Gottingen, Composite Engineering Campus Stade, Airbus Strasse 6, 21684 Stade, Germany;

  • 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

    defects; statistical properties/methods; robust design; damage tolerant design; stiffened composite structures; COCOMAT;

    机译:缺陷统计性质/方法;坚固的设计;容错设计;加硬的复合结构;可可;

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