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首页> 外文会议>3rd International Workshop on Structural Health Monitoring, Sep 12-14, 2001, Stanford University >Diagnosis of Debonding in Steel-Reinforced Concrete with Embedded Piezoelectric Elements
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Diagnosis of Debonding in Steel-Reinforced Concrete with Embedded Piezoelectric Elements

机译：嵌入式压电元件对钢筋混凝土剥离力的诊断

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摘要

A built-in active sensing diagnostic technique is proposed to detect debonding damage in steel-reinforced concrete (RC) structures. In this technique, piezoelectric elements are embedded in RC structures as sensors/actuators to receive and generate signals. In order to fundamentally understand the behavior of sensor signals with response to the actuator excitation, a model was developed. Based on the model, PZFlex finite element code was used to simulate the responses of RC structures with embedded piezoelectric elements. The results of the simulations were verified by experiment which showed debonding could be detected by the proposed technique. Using the code, a parametric study was performed to assess of the signal sensitivity to the various types of debonding in RC structures.
机译：提出了一种内置的主动感应诊断技术，以检测钢筋混凝土结构中的脱胶损伤。在该技术中，压电元件作为传感器/执行器嵌入到RC结构中，以接收和生成信号。为了从根本上理解传感器信号响应执行器激励的行为，开发了一个模型。在该模型的基础上，使用PZFlex有限元代码模拟了带有嵌入式压电元件的RC结构的响应。通过实验验证了仿真结果，表明所提出的技术可以检测到脱胶。使用该代码，进行了参数研究，以评估信号对RC结构中各种类型的剥离的敏感性。

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