Abstract
Based on the electrical activated plastic concept and mobile dislocation model, the mechanism of electromagnetically induced acoustic emission (EMAE) will be studied at a microscopic level. From the perspective of driving effect between electrons and dislocation, a new formulation and numerical calculation for the determination of AE radiation energy in electromagnetic loading will be derived to address the acoustic effect on the crack tip of metals. The EMAE experiments under different exciting conditions are carried out. According to dislocation kinetics theory and plastic AE theory, the mechanism and characteristics of the EMAE have a deeper analysis with experimental AE signals, validating the feasibility of the theoretical prediction of the foundation and demonstrating its superior features and value.
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