Multiphysics simulation on electromagnetic peening of predrilled holes |
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| Authors: | Ji Li Gary J Cheng |
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| Affiliation: | 1. Laval University, 1065 Avenue de la Médecine, Québec, Canada G1V 0A6;2. Arts et Metiers ParisTech, I2M, UMR 5295 CNRS F-33400, Talence, France;1. Department of Mechanical Engineering, Isfahan University of Technology, 8415683111 Isfahan, Iran;2. Department of Chemistry, Isfahan University of Technology, 8415683111 Isfahan, Iran;1. Department of Aerospace Engineering and Engineering Mechanics, University of Cincinnati, Cincinnati, OH, 45221, USA;2. Rolls-Royce Corporation, Indianapolis, IN, 46225, USA;1. Department of Mechanical Engineering, PSNA College of Engineering and Technology, Dindigul 624622, Tamilnadu, India;2. Department of Mechanical Engineering, Sethu Institute of Technology, Virudhunagar District, Kariapatti 626115, Tamilnadu, India;3. Welding Research Institute, Bharat Heavy Electricals Limited, Thiruchirappalli 620014, Tamilnadu, India;1. School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510640, China;2. Department of Aircraft Maintenance Engineering, Guangzhou Civil Aviation College, Guangzhou 510403, China |
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| Abstract: | The areas around predrilled holes are highly stressed regions where cracks can easily form, which decreases the resistance of metal components to fatigue and causes serious problems in industry, such as aerospace, automobile, and ship building. In this paper, a novel method utilizing the effects of a strong pulsed electromagnetic field is introduced to effectively produce residual compressive stress into the surface of a predrilled hole. Basic principles of electromagnetic peening (EMP) are investigated using a multiphysics simulation approach. Simulations of EMP process on the surface of a work piece with predrilled blind hole are carried out by COMSOL Multiphysics 3.4. The distributions of stress and strain are presented and discussed, which demonstrate the feasibility of EMP on inducing compressive residual stress into the interior surface around a hole. In addition, the distribution of residual stress varies with various hole depth and work piece thickness is investigated. Finally, the influence of process parameters is also studied. The results of this work will help design process of strengthening 3D surfaces in metal components in manufacturing industry. |
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