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Similarity law for two-dimensional propagation behavior of ultrasonic wave in concentrically curved fiber CFRP

机译：超声波在同心弯曲光纤中超声波二维传播行为的相似性规律

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摘要

This study investigated the similarity law of ultrasonic propagation in CFRP with concentrically curved fibers. The similarity law was formulated by introducing a new dimensionless number D. Additionally, the similarity law for a two-dimensionally propagating bulk wave was mathematically proven using the governing equation. A numerical simulation was conducted to visually demonstrate how this similarity law is held in CFRP with concentrically curved fibers. The simulation results revealed that the wavefronts of waves generated at different points had geometrically similar shapes when the D values for each wavefront were identical. The experimental visualization of ultrasonic propagation through a CFRP plate with concentrically curved fibers was also conducted, and the results revealed that the similarity law held in actual CFRP material specimens.
机译：本研究研究了同心弯曲纤维CFRP中超声波繁殖的相似度规律。通过引入新的无量值D.另外，使用控制方程式证明了二维传播散热波的相似性定律。进行了数值模拟，以便在视觉上展示这种相似度法如何在CFRP中具有同心弯曲的纤维。仿真结果表明，当每个波前的D值相同时，在不同点产生的波的波线具有几何类似的形状。还进行了具有同心弯曲纤维的CFRP板的超声波繁殖的实验性可视化，结果表明，在实际CFRP材料标本中保持的相似度。

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  • 来源
    《Composite Structures》 |2020年第2期|111714.1-111714.13|共13页
  • 作者

    Ashizawa Takeshi; Mizutani Yoshihiro; Toyama Nobuyuki; Todoroki Akira; Suzuki Yoshiro;

  • 作者单位

    Sch Engn Tokyo Inst Technol Dept Mech Engn Meguro Ku 2-12-1 Ookayama Tokyo 1528552 Japan;

    Sch Engn Tokyo Inst Technol Dept Mech Engn Meguro Ku 2-12-1 Ookayama Tokyo 1528552 Japan;

    Natl Inst Adv Ind Sci & Technol Natl Metrol Inst Japan 1-1-1 Umezono Tsukuba Ibaraki 3058568 Japan;

    Sch Engn Tokyo Inst Technol Dept Mech Engn Meguro Ku 2-12-1 Ookayama Tokyo 1528552 Japan;

    Sch Engn Tokyo Inst Technol Dept Mech Engn Meguro Ku 2-12-1 Ookayama Tokyo 1528552 Japan;

  • 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

    CFRP; Curved fibers; Ultrasonic wave; Wave propagation; Non-destructive testing;

    机译：CFRP;弯曲纤维;超声波;波传播;非破坏性测试;

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