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SETSCI - Volume (2018)
ISAS 2018 - Ist International Symposium on Innovative Approaches in Scientific Studies, Kemer-Antalya, Turkey, Apr 11, 2018

Effect of Temperature on Sensors Used in Structural Health Monitoring: A Literature Review (ISAS 2018_66)
Mesut TEKKALMAZ 1, Gökhan Haydarlar2*
1Makine Mühendisliği Bölümü, Eskişehir Osmangazi Üniversitesi , Eskişehir, Turkey
2Mechanical Engineering Department, Eskişehir Osmangazi University  , Eskişehir, Turkey
* Corresponding author: ghaydarlar@ogu.edu.tr
Published Date: 2018-06-23   |   Page (s): 70-70   |    76     6

ABSTRACT Structural health monitoring is an interdisciplinary field that enables early detection of undesirable situations such as damage or defects that occur in the structure or its components thanks to its ability to self-diagnosis. It is possible to use safer engineering due to early detection of undesirable situations such as damage or defects. Structural health monitoring is widelyused in various machine parts and constructions, especially in aviation and space engineering. One of the widely used methods in structural health monitoring is the electromechanical impedance method. In this method, lead zirconate titanate (PZT) ceramic sensors are added to the structure to be monitored for structural health. By using the impedance analyzer, the characteristics of the real parts of impedance and admittance are obtained. When structural health monitoring is requested, these characteristics are remeasured and compared with the first obtained characteristics. It is expected that these characteristics will not change as long as there is no change in the structure. These characteristics vary in some situations, such as exposure to external environmental conditions, thermal limitations, and temperature fluctuations. If the temperature effect is neglected, the results indicate some defects which do not exist in the structure. It is very important to take into account the effect of temperature on structures that are particularly exposed to varying temperatures. In this study, the literature was investigated for the effects of temperature on the PZT patches and structure.
KEYWORDS Piezoelectric Sensors, Structural Health Monitoring, Temperature Effect
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