Speaker: Yung C. Shin
Title: Prediction of Mechanical Properties and Damage of Metal Matrix Composites
Date/Time: 2 December 2020/ 16:00 - 17:00
Zoom: Meeting ID: Registration is required
Abstract:Metal matrix composites (MMC) provide enhanced properties and hence have been used for various applications. Metal matrix composites can be produced by various manufacturing processes such as casting, injection molding, and additive manufacturing. The MMC parts produced by these primary processes often need to be machined to achieve desired geometry, tolerance, and surface finish. This talk will cover three aspects pertaining to manufacturing of MMC parts. First, it will show how MMC parts can be produced by additive manufacturing, particularly to produce functionally gradient structure and control the resultant microstructure and mechanical properties. Second, the prediction of MMC machining process and subsurface damage is shown through the multiscale models we have been developing over the years. Laser-assisted machining is shown as an effective way of improving machinability and subsurface damage. The corresponding modeling results are shown to give the further insight into the underlying physics and help the optimization of machining processes. Finally, a new computationally efficient multiscale modeling method to predict mechanical properties is shown.
Bio:Yung C. Shin is currently the Donald A. and Nancy G. Roach Distinguished Professor of Advanced Manufacturing in the School of Mechanical Engineering at Purdue University. He received his Ph.D. in mechanical engineering from the University of Wisconsin - Madison in 1984. His research areas include laser processing of materials, intelligent and adaptive control of manufacturing processes, machining of advanced materials, process monitoring and automation. He has published over 390 refereed papers in archived journals and conference proceedings, and has authored chapters in several books, co-edited two books, and authored a book entitled "Intelligent Systems: Modeling, Optimization and Control". He also holds 7 U.S. patents. He established the Center of Excellence for Laser-based Manufacturing in 2003 and currently is serving as its director. He is currently serving as the Editor-in-Chief for Lasers in Materials Processing and Manufacturing, an international journal, by Springer Nature as well as on the editorial board of several other journals. He received numerous awards, including the 2007 ASME Blackall Machine Tool and Gage Award, the best paper of the year award from Journal of Laser Applications in 2012, the SME Frederick Taylor Research Medal in 2015, SME/NAMRI 2016 S.M. Wu Research Implementation Award, and College of Engineering Faculty Award of Excellence in Research in 2018. He is a fellow of ASME and SME, and a senior member of ASM, TMS, and LIA.