Novel Pulsed Electromagnetic Field Device for Rapid Structural Health Monitoring: Enhanced Joint Integrity Assessment in Steel Structures
Viktors Mironovs, Yulia Usherenko, Vjaceslavs Zemcenkovs, Viktors Kurtenoks, Vjaceslavs Lapkovskis, Dmitrijs Serdjuks, Pavels Stankevics
TL;DR
A new PEMF device is developed for non-destructive testing of steel joints, showing improved detection of structural changes and degradation.
Contribution
A novel PEMF device with enhanced sensitivity for rapid structural health monitoring of steel joints is introduced.
Findings
The 4 mm steel plate configuration showed a 15% reduction in high-frequency components compared to the 8 mm plate.
A 10% increase in volumetric porosity caused a 7% downward shift in resonant frequencies.
The PEMF system combined with the coaxial correlation method improved early-stage degradation detection by 30%.
Abstract
This study investigates a novel pulsed electromagnetic field (PEMF) device for dynamic testing and structural health monitoring. The research utilises a PEMF generator CD-1501 with a maximum energy capacity of 0.5 kJ and a flat multifilament coil (IC-1) with a 100 mm diameter. Experiments were conducted on a model steel stand with two joint configurations, using steel plates of 4 mm and 8 mm thickness. The device’s efficacy was evaluated through oscillation pattern analysis and spectral characteristics. Results demonstrate the device’s ability to differentiate between joint states, with the 4 mm plate configuration showing a 15% reduction in high-frequency components compared to the 8 mm plate. Fundamental resonant frequencies of 3D-printed specimens were observed near 5100 Hz, with Q-factors ranging between 200 and 300. The study also found that a 10% increase in volumetric porosity…
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Taxonomy
TopicsElectromagnetic Effects on Materials · Non-Destructive Testing Techniques · Ultrasonics and Acoustic Wave Propagation