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STUDY OF THE EFFECTS OF THERMAL STRESS ON PIEZOELECTRIC SENSORS FOR THE STRUCTURAL HEALTH MONITORING
During the in-service lifetime of an aircraft, the surface bond of any SHM transductor is submitted to thermal stresses, induced by aviation environmental conditions. In this paper, the influence of a disbond, whether willingly introduced or caused by thermal aging, on the ability of a PZT ultrasonic transducer to generate and receive Lamb waves is numerically and experimentally studied.
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