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Experimental measurement of the complex Young's modulus on a CFRP laminate considering the constant hysteretic damping model

机译：考虑恒定滞后阻尼模型的CFRP层压板上复杨氏模量的实验测量

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摘要

When considering structural loss in vibration problems, the Young's modulus is a complex value that may be defined in the Argand plane as the vectorial sum of the real part of the Young's modulus itself and the loss modulus. By performing simple quasi-static force-displacement tests in a universal testing machine it is possible to experimentally measure the complex elastic modulus of a material, even if the loss factor is very small. In this work, the authors present the experimental results of the complex Young's modulus measurements on a specimen of a quasi-isotropic carbon fibre reinforced laminate, considering the constant hysteretic damping model. The setup is fully described and results are presented in detail, giving a special attention to the experimental problems so that this work can become a useful contribution for further studies.
机译：当考虑振动问题中的结构损失时，杨氏模量是一个复数值，可以在Argand平面中定义为杨氏模量本身的实部和损失模量的矢量和。通过在通用测试机中执行简单的准静态力-位移测试，即使损耗因子非常小，也可以通过实验方法测量材料的复弹性模量。在这项工作中，作者介绍了考虑恒定磁滞阻尼模型的准各向同性碳纤维增强层压板样品的复杨氏模量测量的实验结果。对该设置进行了充分描述，并详细介绍了结果，并特别注意了实验问题，以便这项工作可以为进一步的研究提供有用的帮助。

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  • 来源
    《Composite Structures》 |2013年第3期|91-98|共8页
  • 作者

    D. Montalvao; R.A.L.D. Claudio; A.M.R. Ribeiro; J. Duarte-Silva;

  • 作者单位

    School of Engineering and Technology, University of Hertfordshire, College Lane, Hatfield, AL10 9AB, UK;

    Department of Mechanical Engineering, Instituto Superior Tecnico, Technical University of Lisbon, Av. Rovisco Pais, 1049-001 Lisbon, Portugal;

    Department of Mechanical Engineering, Escola Superior de Tecnologia de Setubal, Polytechnic Institute of Setubal, Campus do IPS, Estefanilha, 2910-761 Setubal, Portugal;

    Department of Mechanical Engineering, Instituto Superior Tecnico, Technical University of Lisbon, Av. Rovisco Pais, 1049-001 Lisbon, Portugal;

  • 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

    complex elastic modulus; complex young's modulus; hysteretic damping; loss factor;

    机译：复弹性模量复杨氏模量磁滞阻尼损失系数;

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