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Buckling of axially compressed CFRP truncated cones with additional lateral load: Experimental and numerical investigation

机译：附加侧向载荷的轴向压缩CFRP截锥的屈曲：实验和数值研究

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摘要

Truncated thin-walled conical shells are often used as transition parts between cylinders of different diameters. Parts of space launcher transport systems are one example for the application of conical shells. Buckling of such thin-walled imperfection sensitive structures is a very important phenomenon to be considered during their design phase. Existing design guidelines, NASA SP-8007 for cylinders and NASA SP-8019 for cones, dated from the late 1960's are currently used in the aerospace industry and employ conservative lower-bound knock-down factors. These empirically based lower-bound methods do not include important mechanical properties of laminated composite materials, such as the stacking sequence. New design approaches that allow taking full advantage of composite materials and take into account specific manufacturing methods are therefore required.
机译：截断的薄壁圆锥壳通常用作不同直径的圆柱体之间的过渡部分。太空发射器运输系统的零件是应用锥形壳的一个例子。这种薄壁的缺陷敏感结构的屈曲是在设计阶段要考虑的非常重要的现象。现有的设计准则，气缸的NASA SP-8007和圆锥体的NASA SP-8019，可追溯到1960年代后期，目前已用于航空航天工业，并采用了保守的下限抑制因子。这些基于经验的下限方法不包括层压复合材料的重要机械性能，例如堆叠顺序。因此，需要允许充分利用复合材料并考虑特定制造方法的新设计方法。

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  • 来源
    《Composite Structures》 |2016年第12期|436-447|共12页
  • 作者

    Khakimova Regina; Zimmermann Rolf; Wilckens Dirk; Rohwer Klaus; Degenhardt Richard;

  • 作者单位

    DLR, Inst Composite Struct & Adapt Syst, Lilienthalpl 7, D-38108 Braunschweig, Germany;

    DLR, Inst Composite Struct & Adapt Syst, Lilienthalpl 7, D-38108 Braunschweig, Germany;

    DLR, Inst Composite Struct & Adapt Syst, Lilienthalpl 7, D-38108 Braunschweig, Germany;

    DLR, Inst Composite Struct & Adapt Syst, Lilienthalpl 7, D-38108 Braunschweig, Germany;

    DLR, Inst Composite Struct & Adapt Syst, Lilienthalpl 7, D-38108 Braunschweig, Germany|Private Univ Appl Sci Gottingen, PFH, Composite Engn Campus Stade, Gottingen, 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

    Buckling; Tests; Thin-walled structure; CFRP truncated conical shell; Imperfections; FEA; Lateral load;

    机译：屈曲;试验;薄壁结构;CFRP截锥形壳;缺陷;FEA;侧向载荷;

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