Evaluating damage in smart composite laminates using embedded EFPI strain sensors

G. Zhou; L. M. Sim

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Evaluating damage in smart composite laminates using embedded EFPI strain sensors

机译：使用嵌入式EFPI应变传感器评估智能复合材料层压板的损坏

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Extrinsic Fabry-Perot interferometric (EFPI) strain sensors (SSs) were assessed for their sensing capacity and survivability via surface mounting and interior embedment in the carbon/epoxy beams. Artificial delaminations of two different sizes were used to simulate delamination. The embedded EFPI-SSs along with surface-mounted SGs were used to evaluate the effect of the delaminations on bending stiffness induced by quasi-static loading on a comparative basis. The linear responses of EFPI-SSs up to a bending strain of 0.5% were in good agreement with the interpolated strains of surface strain measurements. The embedded EFPI-SSs were able to differentiate the effect of the tensile delaminations on bending stiffness. The interior strain data'from embedded EFPI-SSs were shown to be very useful to extrapolate the strain difference on both sides of the delaminations as well as deducing local stresses.

机译：通过表面安装和内部嵌入碳/环氧束中，评估了外部法布里-珀罗干涉（EFPI）应变传感器（SSs）的传感能力和生存能力。使用两种不同大小的人工分层来模拟分层。嵌入式EFPI-SS与表面安装的SG一起用于比较比较分层对准静态载荷引起的弯曲刚度的影响。 EFPI-SS的线性响应直至弯曲应变为0.5％都与表面应变测量的内插应变非常吻合。嵌入式EFPI-SS能够区分拉伸分层对弯曲刚度的影响。嵌入式EFPI-SS的内部应变数据显示出非常有用的推论分层两侧的应变差以及推导局部应力的功能。

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来源
《Optics and Lasers in Engineering》 |2009年第10期|1063-1068|共6页
作者
G. Zhou; L. M. Sim;
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作者单位

Department of Aeronautical and Automotive Engineering, Loughborough University, Loughborough, Leicestershire, LE11 3TU, United Kingdom;

Singapore Institute of Manufacturing Technology, Singapore 638075, Singapore;

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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
EFPI strain sensor; damage evaluation; smart composite structure;

机译：EFPI应变传感器;损害评估;智能复合结构;

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4. Evaluating damage in smart composite laminates using embedded EFPI strain sensors [C] . G. Zhou, L.M. Sim International conference on smart materials and nanotechnology in engineering . 2007

机译：使用嵌入式EFPI应变传感器评估智能复合材料层压板的损坏
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6. Microstructured Optical Fiber Sensors Embedded in a Laminate Composite for Smart Material Applications [O] . Camille Sonnenfeld, Sanne Sulejmani, Thomas Geernaert, 2011

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7. Design, manufacturing and testing of smart beams with EFPI strain sensor for damage detection. [O] . Sim Lay M. 2003

机译：带有EFPI应变传感器的智能梁的设计，制造和测试，用于损伤检测。

Evaluating damage in smart composite laminates using embedded EFPI strain sensors

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