Prof. Ramesh K. Agarwal
Washington University in St. Louis, USA

Professor Ramesh K. Agarwal is the William Palm Professor of Engineering in the department of Mechanical Engineering and Materials Science at Washington University in St. Louis. From 1994 to 2001, he was the Sam Bloomfield Distinguished Professor and Executive Director of the National Institute for Aviation Research at Wichita State University in Kansas. From 1978 to 1994, he was the Program Director and McDonnell Douglas Fellow at McDonnell Douglas Research Laboratories in St. Louis. Dr. Agarwal received Ph.D in Aeronautical Sciences from Stanford University in 1975, M.S. in Aeronautical Engineering from the University of Minnesota in 1969 and B.S. in Mechanical Engineering from Indian Institute of Technology, Kharagpur, India in 1968. Over a period of forty years, Professor Agarwal has worked in various areas of Computational Science and Engineering - Computational Fluid Dynamics (CFD), Computational Materials Science and Manufacturing, Computational Electromagnetics (CEM), Neuro-Computing, Control Theory and Systems, and Multidisciplinary Design and Optimization. He is the author and coauthor of over 500 journal and refereed conference publications. He has given many plenary, keynote and invited lectures at various national and international conferences worldwide in over fifty countries. Professor Agarwal continues to serve on many academic, government, and industrial advisory committees. Dr. Agarwal is a Fellow eighteen societies including the Institute of Electrical and Electronics Engineers (IEEE), American Association for Advancement of Science (AAAS), American Institute of Aeronautics and Astronautics (AIAA), American Physical Society (APS), American Society of Mechanical Engineers (ASME), Royal Aeronautical Society, Chinese Society of Aeronautics and Astronautics (CSAA), Society of Manufacturing Engineers (SME) and American Society for Engineering Education (ASEE). He has received many prestigious honors and national/international awards from various professional societies and organizations for his research contributions.

Prof. Changduk Kong
Chosun University, South Korea

"Development of a High Efficiency and Long Life 500W Class H-Darrieus-type Vertical Axis Wind Turbine System using Skin-spar-foam Sandwich Composite Structure"
Prof. Changduk Kong graduated with a BSc in Aerospace Engineering from the Korea Aerospace University-National (Hons.) and a PhD in Aerospace Engineering from the Osaka Prefecture University, Japan.

He worked as Head of the Aero-Propulsion Division of ADD (Agency for Defence Development in1978-1994. He served as Professor at Department of Aerospace Engineering of Chosun University during 1994-2016, and was appointed as Dean of the School of Aerospace and Naval Architecture Engineering in 1999 and 2005-2006, and Dean of the Facility Management Office at Chosun University in 2011-2012. He has served as Visiting Professor at Department of Aerospace Engineering of IIT(Indian Institute of Technology) Kharagpur, India in 2017, Invited Professor at School of Aerospace and Mechanical Engineering of Korea Aerospace University, in 2016-2019, Invited Professor at Summer School of BUAA(Beijing University of Aeronautics and Astronautics), China in 2017-2018, and Emeritus Professor at Department of Aerospace Engineering of Chosun University since 2016. He was invited as Visiting Professor at Department of Aeronautics of Imperial College, UK in 2001-2002.

Prof. Kong has contributed greatly to the development of Aerospace Engineering in Korea, primarily through his roles as a non-standing Director of KIAST(Korea Institute of Aviation Safety Technology) in 2015-2018, a non-standing Director of AMRC(UK)-Korea in 2016-2020, CTO of EGT Company, President of KNST(Korea Society for Naval Science and Technology) in 2018-2019, President of SASE(The Society for Aerospace System Engineering) in 2013-2016, President of ICRC (International Collaboration Research Centre in Natural Composites, Chosun University in 2012-2014, President of KSAS(The Korean Society for Aeronautical and Space Sciences in 2010, President of KSPE(The Korean Society of Propulsion Engineers in 2007-2008, Chair of Cycle Innovation-IGTI-ASME in 2009-2011, President of RIME(Research Institute of Mechanical Engineering-Chosun University) in 2006-2008, and First Lieutenant of ROKAF(Republic of Korea Air Forces) in 1974-1978.

He has served as Editorial Board Members of IJTJ(International Journal of Turbo & Jet Engines), IJCM(International Journal of Composite Materials), CJS(Chinese Journal of Aeronautics) and AEAT(Aircraft Engineering and Aerospace Technology) since 1998, and Editor-in-Chief of JKSAS(Journal of Korean Society for Aeronautical and Space Science) and JKSPE(Journal of Korean Society of Propulsion Engineers) in 2006-2010. He received the Korean National Decoration in Science, Academic Achievement Awards from KSAS, SASE and KSPE, Defence Science Medals and the 2015 KAI-KSAS Prize for his scientific achievement and contribution to Korean aerospace development.

Prof. Kong has authored and co-authored more than 616 papers including 67 SCI journal papers, and has received numerous lecture invitations from companies, research institutes and universities and delivered eleven keynotes and invited lectures at international conferences. He has organized 26 national conferences, forums and workshops and was co-organiser on four international conferences.

Prof. Seok-Soon Lee
Gyeongsang National University, South Korea

"Prediction of Hardening Depth for AISI 1045 Specimen by High-Frequency Induction Process with Finite Element Analysis"
Professor Seok-Soon Lee is the professor of Mechanical and Aerospace Engineering at Gyeongsang National University and the president of The society of Aerospace System Engineering. He graduated from BSc (1982) in Aerospace Engineering from the Korea Aerospace University and MS (1984) and PhD (1989) in Mechanical Engineering from Korea Advanced Institute of Science and Technology(KAIST). Dr, Lee’s research interests are structural analysis and testing, optimum design, CAD/CAE and eletromagnetic application in mechanics. Current researches are the high frequency induction hardening and electromagnetic forming simulations with FEA. Dr. Lee has published over 60 journal articles, 11 books and over 250 conference articles. Dr. Lee is an inventor on 11patents and over 10 patents pending. Dr. Lee is a fellow of The Korean Society of Mechanical Engineering(KSME), The Korean Society of Precision Engineering(KSPE), The Korean Society of Automotive Engineering(KSAE) and The Society for Aerospace System Engineering(SASE). He was the Head of Mechanical Engineering Training and Education center(METEC) (2001-2006) and Brain Korea 21 Regional University Promotion Program (2002-2006). He was the Editor–in-Chief of Journal of Aerospace System Engineering and International Journal of Aerospace System Engineering. He is serving the chair of Asia Joint Symposium on Aerospace Engineering 2018(AJSAE2018) on October 31- November 3, 2018, Gyeongju, Korea.
Abstract: A high-frequency induction hardening analysis method was established based on electromagnetic-thermal translate analysis (co-simulation). To apply the same conditions as that of the experiment to the high-frequency induction hardening analysis, the temperature-dependent material properties of AISI 1045 were entered. During cooling, the analysis results could be obtained by setting the cooling conditions of water. After the hardening depth of the high-frequency induction-hardened specimen was measured using a micro Vickers hardness tester, the hardening depth and hardening pattern were verified with a metallurgical structure. The experiment results were compared with the finite element analysis (FEA) results. The hardening pattern could be confirmed because AISI 1045 was heated to over 746°C, which was the A2 transformation point, and cooled to below 200°C. The FEA results could confirm the heating and cooling temperatures. In addition, the hardening depth was found to be similar to the hardened area. When AISI 1045 was heated over the A2 transformation point, its structure transformed from ferrite to austenite and it changed from a magnetic material to a non-magnetic material. The FEA of magnetic flux density and Joule heat density during heating revealed that high-frequency induction hardening is favorable for surface hardening.