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Vibration based Structural Health Monitoring of a composite T-beam

机译：基于振动的复合T梁结构健康监测

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摘要

A vibration based damage identification method is investigated experimentally for a 2.5-dimensional composite structure. The dynamic response of an intact and a locally delaminated 16-layer unidirectional carbon fibre PEKK reinforced T-beam is considered. A force-vibration set-up, including a laser vibrometer system, is employed to measure the dynamic behaviour of the T-beam. The Modal Strain Energy Damage Index algorithm is applied using the bending and torsion modes. Special attention is paid to the effect of the number of measurement points required to detect and localize the delamination accurately.
机译：实验研究了基于振动的2.5维复合材料损伤识别方法。考虑完整和局部分层的16层单向碳纤维PEKK增强T型梁的动力响应。包括激光振动计系统在内的力振动装置用于测量T型梁的动态性能。使用弯曲和扭转模式应用模态应变能损伤指数算法。要特别注意精确检测和定位分层所需的测量点数量的影响。

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  • 来源
    《Composite Structures》 |2010年第9期|2007-2015|共9页
  • 作者

    T.H. Ooijevaar; R. Loendersloot; L.L. Warnet; A. de Boer; R. Akkerman;

  • 作者单位

    Faculty of Engineering Technology, University of Twente, P.O. Box 217, 7500AE, Enschede, The Netherlands;

    rnFaculty of Engineering Technology, University of Twente, P.O. Box 217, 7500AE, Enschede, The Netherlands;

    rnFaculty of Engineering Technology, University of Twente, P.O. Box 217, 7500AE, Enschede, The Netherlands;

    rnFaculty of Engineering Technology, University of Twente, P.O. Box 217, 7500AE, Enschede, The Netherlands;

    rnFaculty of Engineering Technology, University of Twente, P.O. Box 217, 7500AE, Enschede, The Netherlands;

  • 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

    structural health monitoring; modal strain energy; damage index; fibre reinforced composite;

    机译：结构健康监测;模态应变能破坏指数纤维增强复合材料;

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