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首页> 外文会议>Fifth ACI International Conference on Innovations in Design with Emphasis on Seismic, Wind, and Environmental Loading; Quality Control and Innovations in Materials/Hot-Weather Concreting Dec, 2002 Cancun, Mexico >Quantitative Infrared Thermography for Quality Control of Concrete Structures Strengthened with FRP Composites
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Quantitative Infrared Thermography for Quality Control of Concrete Structures Strengthened with FRP Composites

机译：FRP复合材料加固混凝土结构的定量红外热成像技术

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摘要

The finite-element method is used to carry out parametric analyses on the thermal response of simulated defects in fiber-reinforced polymer (FRP) laminates applied to a concrete substrate. The aim is to assess the potential for qualtita-tive infrared thermography in not only detecting a flaw but also being able to describe its physical characteristics. Three parametric studies are presented, namely: 1) relationship between the thermal input, the maximum signal, and the maximum surface temperature; 2) effects of flaw depth and the number of FRP layers; and 3) effect of flaw width. From these simulations, procedures are established for selecting the thermal input and estimating the flaw depth and width.
机译：有限元方法用于对应用于混凝土基材的纤维增强聚合物（FRP）层压板中模拟缺陷的热响应进行参数分析。目的是评估定性红外热成像技术的潜力，不仅可以检测瑕疵，还可以描述其物理特性。提出了三个参数研究，即：1）热输入，最大信号和最大表面温度之间的关系； 2）缺陷深度和玻璃钢层数的影响； 3）缺陷宽度的影响。通过这些模拟，可以建立选择热输入并估算缺陷深度和宽度的程序。

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