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摘要
Based on the Biot-Savart law, a model of metal magnetic memory (MMM) testing for detecting discontinuities, such as cracks, on the surface of a rectangular parallelepiped is proposed. An analytical expression of normal magnetic strength on the surface of the material is presented. With this model, the location, shape, and dimensions of a crack can be detected by the MMM testing curve.
- 出版日期2017-11
- 单位北京交通大学
