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Sonothermography in composite materials: Finite Element modeling and experimental validation

机译:复合材料中的超声检查:有限元建模和实验验证

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摘要

Measurements of the temperature field induced in viscoelastic composite materials by the loss of ultrasonic fields and its comparison with a Finite Elements model are presented. The FE model computes the acoustic field and the loss of energy. The heat equation is solved with this loss as a source of heating. For experimental comparison, the plate is cut out in rods oriented in various directions and excited with a piezoelectric actuator. Model results are compared to the image produced by an infrared camera. Some features appear due to the material anisotropy that correspond to the orientation of the fibers.
机译:提出了通过超声场的损失在粘弹性复合材料中引起的温度场的测量,并将其与有限元模型进行了比较。有限元模型计算声场和能量损失。用该损失作为热源求解热方程。为了进行实验比较,将板切成不同方向的棒,并用压电致动器激励。将模型结果与红外摄像机产生的图像进行比较。由于与纤维的取向相对应的材料各向异性而出现一些特征。

著录项

  • 来源
    《NDT & E international》 |2012年第2012期|p.120-126|共7页
  • 作者单位

    Univ. Bordeaux, 12M, UMR 5295, F-33400 Talence, France,CNRS, 12M, UMR 5295, F-33400 Talence, France,Arts et Metiers ParisTech, 12M, UMR 5295, F-33400 Talence, France;

    Univ. Bordeaux, 12M, UMR 5295, F-33400 Talence, France,CNRS, 12M, UMR 5295, F-33400 Talence, France,Arts et Metiers ParisTech, 12M, UMR 5295, F-33400 Talence, France;

    Univ. Bordeaux, 12M, UMR 5295, F-33400 Talence, France,CNRS, 12M, UMR 5295, F-33400 Talence, France,Arts et Metiers ParisTech, 12M, UMR 5295, F-33400 Talence, France;

    Univ. Bordeaux, 12M, UMR 5295, F-33400 Talence, France,CNRS, 12M, UMR 5295, F-33400 Talence, France,Arts et Metiers ParisTech, 12M, UMR 5295, F-33400 Talence, France;

    Univ. Bordeaux, 12M, UMR 5295, F-33400 Talence, France,CNRS, 12M, UMR 5295, F-33400 Talence, France,Arts et Metiers ParisTech, 12M, UMR 5295, F-33400 Talence, France;

    Univ. Bordeaux, 12M, UMR 5295, F-33400 Talence, France,CNRS, 12M, UMR 5295, F-33400 Talence, France,Arts et Metiers ParisTech, 12M, UMR 5295, F-33400 Talence, France;

  • 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

    ultrasonic attenuation; thermography; composite materials; finite element method;

    机译:超声波衰减热成像复合材料;有限元法;

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