Experimental Investigation of E/M Impedance Health Monitoring for Spot-Welded Structural Joints
نویسندگان
چکیده
منابع مشابه
E/m Impedance Health Monitoring of Spot-welded Structural Joints
1 TRACT erimental results obtained during fatigue testing of a lded lap-shear structural-joint specimen are d. In these experiments, the electro-mechanical mpedance technique was used for structural health ing, damage detection, and NDE. The test ns were instrumented with piezo-electric wafer ers, and the base E/M impedance signature was over the relevant frequency range. Fatigue testing lied t...
متن کاملDetails of the Electro-Mechanical (E/M) Impedance Health Monitoring of Spot-Welded Structural Joints
Health monitoring of structural joints is a major concern of the engineering community. Among joining techniques, spotwelding play a major role. Spot welding is the traditional method of assembly for steel-based automotive structures, while spot-welding of aluminum is being considered for future vehicular structures. Though spot welding of steel is well researched and understood, the spot-weldi...
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The health monitoring of structural joints is a major concern of the engineering community and needs to be addressed with the proper consideration. Among joining techniques, the spot welding and weld-bonding (spot weld + adhesive bonding) methods are of great interest in a number of industries. Spot welding is the traditional assembly method for steel-based automotive structures, while weld-bon...
متن کاملImpedance-based Structural Health Monitoring
1. Introduction The development of a real-time, in-service structural health monitoring and damage detection technique has recently attracted a large number of academic and industrial researchers. The goal of this research is to allow systems and structures to monitor their own integrity while in operation and throughout their lives in order to prevent catastrophic failures and to reduce the co...
متن کاملStructural health monitoring using piezoelectric impedance measurements.
This paper presents an overview and recent advances in impedance-based structural health monitoring. The basic principle behind this technique is to apply high-frequency structural excitations (typically greater than 30kHz) through surface-bonded piezoelectric transducers, and measure the impedance of structures by monitoring the current and voltage applied to the piezoelectric transducers. Cha...
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ژورنال
عنوان ژورنال: Journal of Intelligent Material Systems and Structures
سال: 1999
ISSN: 1045-389X
DOI: 10.1106/n0j5-6uj2-w1gv-q8mc