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On the influence of filling level in CFRP aircraft fuel tank subjected to high velocity impacts

机译：高速冲击对CFRP飞机油箱内油位的影响

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摘要

In this work, the process of impact that takes place in a partially filled tank is analyzed, performing a numerical simulation, in order to understand the response of the composite laminated structure. The commercial finite-element code LS-DYNA v.R7 has been used to simulate an Hydrodynamic RAM event created by a steel spherical projectile impacting a partially water-filled woven CFRP square tube using two different approaches (MM-ALE and SPH). The intralaminar and interlaminar damage have been taken into account implementing an user subroutine and by means of a cohesive interaction, respectively. Once the numerical model is validated using available experimental data, the effect of the filling level in the failure of the tank is analyzed in detail taking advantage of the information provided by the numerical model.
机译：在这项工作中，分析了在部分填充的储罐中发生的撞击过程，并进行了数值模拟，以了解复合叠层结构的响应。商业有限元代码LS-DYNA v.R7已被用于模拟水动力RAM事件，该事件是由钢球形弹丸通过两种不同的方法（MM-ALE和SPH）撞击部分充水的编织CFRP方管而产生的。层内和层间损坏已考虑到分别实现用户子例程并通过内聚性交互进行考虑。一旦使用可用的实验数据验证了数值模型，便会利用数值模型提供的信息来详细分析液位对储罐故障的影响。

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  • 来源
    《Composite Structures》 |2014年第1期|570-577|共8页
  • 作者

    J.A. Artero-Guerrero; J. Pernas-Sanchez; J. Lopez-Puente; D. Varas;

  • 作者单位

    Department of Continuum Mechanics and Structural Analysis, University Carlos Ⅲ of Madrid, Avda. de la Universidad, 30, 28911 Leganes, Madrid, Spain;

    Department of Continuum Mechanics and Structural Analysis, University Carlos Ⅲ of Madrid, Avda. de la Universidad, 30, 28911 Leganes, Madrid, Spain;

    Department of Continuum Mechanics and Structural Analysis, University Carlos Ⅲ of Madrid, Avda. de la Universidad, 30, 28911 Leganes, Madrid, Spain;

    Department of Continuum Mechanics and Structural Analysis, University Carlos Ⅲ of Madrid, Avda. de la Universidad, 30, 28911 Leganes, Madrid, Spain;

  • 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

    Carbon fiber; Hydrodynamic RAM; Fluid-structure interaction; Partially fluid-filled tank; Impact; Numerical simulation;

    机译：碳纤维;流体动力RAM;流固耦合部分注满油的油箱;影响;数值模拟;

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