Refinements of the Impedance-based Structural Health Monitoring Technique

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چکیده

In almost all practical field applications, the structure that is being monitored is constantly undergoing changes due to external boundary and environmental conditions. This change, in most cases, is considered to be normal and a part of the everyday use of the structure. Examples of the factors that lead to this change are loading of the structure, vibration of the structure and change in the ambient temperature. These factors not only effect the structure but also the equipment that is used to monitor its integrity. For example, temperature changes not only affect the structure in question, but also the piezoelectric sensors mounted on the structure. The effects of these factors on the impedance signature and the capability of the technique to distinguish and determine damage, are the motivation of this research and main issues that must be dealt with before full-scale development and commercialization can take place.

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تاریخ انتشار 2000