用于铝板声弹性系数标定的电磁加载装置设计

doi:10.19595/j.cnki.1000-6753.tces.191222

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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 words： Acoustoelastic coefficient electromagnetic loading device size selection critical refracting longitudinal waves

Received: 27 September 2019

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TM15

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	Articles by authors
	Zhang Chuang
	Wang Biao
	Liu Suzhen
	Yang Qingxin

Cite this article:

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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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.191222 OR https://dgjsxb.ces-transaction.com/EN/Y2020/V35/I19/4139

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