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Evaluation of microdamage initiation in Z-pinned laminates by means of automated RVE computations

机译：通过自动RVE计算评估Z钉扎层压板中的微损伤引发

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摘要

Z-pinning was originally designed to improve the delamination toughness and the impact resistance of composite laminates. However, there is extensive experimental evidence that this improvement is accompanied by a reduction of the in-plane properties. The main mechanisms responsible for this deterioration are the local change in fiber content, fiber distortion, and the inclusion of resin-rich regions near the Z-pin. The shape of these geometrical features strongly depends on the laminate stacking sequence and on pin parameters such as pin diameter, pin content, and initial pin inclination angle. Their shape complexity challenges analytical modelling approaches which are currently used to generate RVE geometries for simulations.
机译：Z-pinning最初旨在提高复合材料层压板的分层韧性和抗冲击性。但是，有大量的实验证据表明，这种改进伴随着面内特性的降低。导致这种劣化的主要机制是纤维含量的局部变化，纤维变形以及Z针附近包含富树脂区域。这些几何特征的形状在很大程度上取决于层压板的堆叠顺序以及销钉参数，例如销钉直径，销钉含量和初始销钉倾斜角度。它们的形状复杂性对分析建模方法提出了挑战，该方法目前用于生成RVE几何图形进行仿真。

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  • 来源
    《Composite Structures》 |2018年第12期|104-115|共12页
  • 作者

    Pierreux Gerrit; Wu Ling; Van Hemelrijck Danny; Massart Thierry J.;

  • 作者单位

    Vrije Univ Brussel, Dept Mech Mat & Construct, Pleinlaan 2, B-1050 Brussels, Belgium;

    Univ Liege, Computat & Multiscale Mech Mat, Chemin Chevreuils 1, B-4000 Liege, Belgium;

    Vrije Univ Brussel, Dept Mech Mat & Construct, Pleinlaan 2, B-1050 Brussels, Belgium;

    Univ Libre Bruxelles, Bldg Architecture & Town Planning Dept, Ave Fr,Roosevelt 50,CP 194-02, Brussels, Belgium;

  • 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

    Z-pinning; Internal geometry; Mechanical properties; Multiscale modelling;

    机译：Z钉;内部几何;力学性能;多尺度建模;

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