主要从事先进焊接与连接技术的开发与应用、焊接新工艺机理与建模仿真方面的研究工作。围绕搅拌摩擦焊接新工艺，通过采用实验测试与建模仿真等研究手段，开展了常规及改型搅拌摩擦焊接工艺机理与应用研究，建立考虑超声软化效应的铝合金材料本构模型，解释了超声改善焊接过程的物理机制，发展了搅拌摩擦焊接工艺理论；围绕焊接多尺度模拟，采用相场法与有限元法相结合，开展了微观组织预测研究。在国际重要期刊及会议上发表论文30余篇，其中SCI收录论文20余篇，论文获国内外同行的广泛正面引用。在材料加工与焊接制造领域权威期刊Scripta Materialia, International Journal of Machine Tools & Manufacture, Materials & Design，JMPT, STWJ等发表多篇研究论文，申请发明专利2项，担任Materials & Design，International Journal of Heat and Mass Transfer，International Journal of Pressure Vessels and Piping等国际期刊审稿人。 近期部分代表性论文 1. L. Shi, C.S. Wu, S. Gao, G.K. Padhy. Modified constitutive equation for use in modeling the ultrasonic vibration enhanced friction stir welding process. Scripta Materialia, 2016, 119: 21-26. 2. L. Shi, C. S. Wu, H. J. Liu. The effect of the welding parameters and tool size on the thermal process and tool torque in reverse dual-rotation friction stir welding. International Journal of Machine Tools and Manufacture, 2015, 91:1-11. 3. L. Shi, C.S. Wu, G.K. Padhy, S. Gao. Numerical simulation of ultrasonic field and its acoustoplastic influence on friction stir welding. Materials & Design, 2016, 104:102-115. 4. L. Shi, C. S. Wu, X.C. Liu. Modeling the effects of ultrasonic vibration on friction stir welding. Journal of Materials Processing Technology, 2015, 222:91-102. 5. L. Shi, C.S. Wu. Transient model of heat transfer and material flow for the whole process of friction stir welding. Journal of Manufacturing Processes, 2017, 25:323-339. 6. L. Shi, C.S. Wu, Z. Sun. An integrated model for analysing the effects of ultrasonic vibration on tool torque and thermal processes in friction stir welding. Science and Technology of Welding and Joining, 2018, 23(5):365-379. 7. L. Shi, S.A. Alexandratos, N.P. O’Dowd. Combined finite element and phase field method for simulation of austenite grain growth in the heat-affected zone of a martensitic steel weld. Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications, 2018: 1464420717750999. 8. L. Shi, S.A. Alexandratos, N.P. O’Dowd. Prediction of prior austenite grain growth in the heat-affected zone of a martensitic steel during welding. International Journal of Pressure Vessels and Piping, 2018, 166: 94-106. 9. 石磊, 武传松, 刘会杰. 逆向差速搅拌摩擦焊接材料塑性流变和热场的数值模拟. 机械工程学报 2014, 50(16):140-146. 10. 武传松, 宿浩, 石磊. 搅拌摩擦焊接产热传热过程与材料流动的数值模拟. 金属学报, 2018, 22: 1445-1451. |
