Transactions of China Electrotechnical Society  2020, Vol. 35 Issue (19): 4139-4149    DOI: 10.19595/j.cnki.1000-6753.tces.191222
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Electromagnetic Loading Device Design for Acoustoelastic Coefficient Calibration of Aluminum Plates
Zhang Chuang1,2, Wang Biao1,2, Liu Suzhen1,2, Yang Qingxin1
1. State Key Laboratory of Reliability and Intelligence of Electrical Equipment Hebei University of Technology Tianjin 300130 China;
2. Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability of Hebei Province Hebei University of Technology Tianjin 300130 China

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Abstract  The non-destructive testing of stress in metallic materials based on critical refracting longitudinal waves has broad application prospects. The calibration of metal materials' acoustoelastic coefficient is particularly important. At present, the calibration method for acoustoelastic coefficient of metal materials is to perform tensile testing on metal materials by mechanical loading, which is not suitable for in-service metal components. Aiming at the above problems, based on the Lorentz force generation mechanism, this paper designed an electromagnetic loading device to calibrate acoustoelastic coefficient of aluminum plates. The two-dimensional simulation model was used to analyze and select the dimensional parameters of the device, and the three-dimensional finite element simulation model was established to calculate the axial electromagnetic loading force of aluminum plate. An electromagnetic loading test platform was built to measure the propagation time of critical refracting longitudinal waves in aluminum plates under electromagnetic loading and the average axial stress in the aluminum plates was calculated. The experimental results were basically consistent with the simulation results, which verified the feasibility of the electromagnetic loading device.
Key wordsAcoustoelastic coefficient      electromagnetic loading device      size selection      critical refracting longitudinal waves     
Received: 27 September 2019     
PACS: TM15  
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Zhang Chuang
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Yang Qingxin
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Zhang Chuang,Wang Biao,Liu Suzhen等. Electromagnetic Loading Device Design for Acoustoelastic Coefficient Calibration of Aluminum Plates[J]. Transactions of China Electrotechnical Society, 2020, 35(19): 4139-4149.
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