Chemical and Material Engineering

ICCME2018 Keynote & Plenary Speakers

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

Speech Title : Recent Developments in Composite Structures and Additive Manufacturing for Aircraft Applications

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.

Abstract: In recent years, there has been emphasis on ‘Green Aviation’ with the dual aims of reducing the energy consumption as well as emissions. Several new concepts for the aircraft have been proposed to reduce drag, improve engine efficiency, and reduce mass. Majority of the wing-tube transport aircraft in service today are very efficient high speed air vehicles equipped with high bypass jet engines. Since early 1960s most improvements in aircraft efficiency have come from advanced turbofan propulsion technology (by 40%) and improved aerodynamics to increase the Lift/Drag (by 15%); however, the structural efficiency of the aluminum aircraft did not change much because of limited emphasis on considerations of novel materials, structures, and manufacturing processes. In recent years, reduction of aircraft mass has become one of the major drivers in developing new aircraft design concepts, novel materials and manufacturing processes without affecting the intrinsic qualities, namely the safety, reliability, durability and comfort. As a result, the metal composites based on textile-reinforced polymers that are locally blended with metal elements are being investigated for aircraft structures. Additionally, in the near future a tremendous leap in material morphologies is expected from intermediate components such as solid plates and slender beams that are assembled and joined mechanically to flexible bundles of fibers, which are then transformed into integral three-dimensional structures via both the traditional textile manufacturing and modern fiber placement machinery. These textile structures are impregnated (‘pre’, ‘in situ’ or ‘post’- before, during or after molding) and finally solidified into ultra-modern integral multipart and multifunctional solid lightweight composite structures. This keynote paper will describe these developments that will transform the ‘state of the art’ aircraft concepts into more efficient (more pay-load per unit weight and per dollar) transport, both by increasing the structural simplicity and efficiency and by use of modern materials and processes.
In addition, to address many challenges of ‘Green Aviation,’ nearly a decade ago NASA launched an initiative called the ‘Environmentally Responsible Aviation (ERA).’ In this initiative, Blended-Wing-Body (BWB) aircraft and other X-planes are being considered for a long-haul transport aircraft. BWB provides many aerodynamic advantages; however it presents structural challenges due to the noncircular cross section of the center part of its fuselage. Although significantly lighter than the conventional aluminum structures, even the most efficient composite primary structures used in today’s state-of-the-art aircraft are not adequate to overcome the weight and cost penalties introduced by the highly contoured airframe of the BWB. To address these issues, scientists at NASA and the Boeing Company are working together to develop a new structural concept called the pultruded rod stitched efficient unitized structure (PRSEUS). This concept is being analytically and experimentally evaluated using a building block approach that assesses the fundamental structural responses in representative loading environments of BWB. This presentation will also review the current status of PRSEUS.
Furthermore, 3-D printing and additive manufacturing are emerging as very promising techniques for fabrication of composite parts. This review will also address the state of the art of these technologies as they relate to the fabrication of some complex aircraft parts.  

 

Prof. Yonggang Zhu
Harbin Institute of Technology - Shenzhen, China

Speech Title: TBA...

Professor Yonggang Zhu is currently a Professor and director of Center for Microflows and Nanoflows at Harbin Institute of Technology, ShenZhen, China, and Joint Professor at School of Science, RMIT University, Australia. Prior to this, he held the positions of Senior Principal Research Scientist and Research Team Leader for the Microfluidics and Fluid Dynamics Team in CSIRO Australia, Senior Technology Fellow at Melbourne Centre for Nanofabrication. His current research interests include micro- and nanoscale thermal & fluid flows, lab on a chip devices, microtheraml systems, multiphase flows and micro-sensors. He has led many research and development projects in developing advanced technologies for chemical and biological sensing, new materials development, thermal management systems and industry applications. Prof. Zhu has published over 200 papers including book chapters, journal articles, conference papers and technical reports. He is the winner of 2012 Australian Museum Eureka Science Prize for Outstanding Science in Support of Defence or National Security.

 

Prof. Sreeramamurthy Ankem
University of Maryland, USA

Speech Title: Recent Advances on the Deformation Behavior of Two-Phase α+β Titanium Alloys

Dr. Sreeramamurthy Ankem is a professor at the University of Maryland, College Park, USA. His research interests include: Physical and mechanical behavior of structural materials including titanium alloys and stainless steels, modeling microstructure evolution in multiphase systems, finite element modeling (FEM) of deformation and damping behavior of composite materials, and biomedical implants. He has over 95 publications in these areas. Prof. Ankem has received many awards and he is a Fellow of the professional society ASM International (FASM).

Abstract: Two-phase materials, such as α+β Titanium (Ti) alloys, are technologically important. A number of factors can affect deformation behavior, including the interaction stresses between phases, the crystallographic relationships between phases, and the morphology. As a result, the deformation mechanisms of two-phase alloys may be different from the individual single-phase materials. For example, twinning may not occur in a single phase material if the grain size is very small but twinning can occur in a very fine grained alloy if the second phase present contributes to the interfacial stresses due to elastic interactions. Interaction stresses can result from the difference in the elastic properties of the two phases. In particular, these elastic interaction stresses can be quantified by the finite element method (FEM). In this presentation recent developments regarding two-phase deformation mechanisms will be reviewed and the ramifications on mechanical behavior in regard to two-phase Ti alloys in particular and on two-phase metallic materials in general will be outlined. 

 

Prof. Guang Xu
Wuhan University of Science and Technology, China

Speech Title: Effect of Ni addition on microstructure and properties in a Fe-C-Mn-Si alloy

Dr. Guang Xu is a full professor and Ph.D advisor at the Faculty of Materials and Metallurgy at Wuhan University of Science and Technology. He received Ph.D in Materials Science and Engineering from Chongqing University in 2002, M.S. in Materials Processing Engineering from the University of Science and Technology of Beijing in 1987 and B.S. in Metals Processing Engineering from the University of Science and Technology of Beijing in 1982. He worked as visiting scholar at Bremen University (German) in 1996 to 1997, McMaster University (Canada) in 2009 to2010, Technische Universitat Bergakademie Freiberg (German) in 2015 and Wollongong University (Australia) in 2016, respectively. He serves as committee member of National Award for Science and Technology Progress.
His research interests include the microstructure and property of metals and alloys, the development of high strength steels, the processing technology of materials etc. He undertook and finished many research projects, including the projects from NSFC (Natural Science Foundation of China), Hubei Province Government, Baosteel Group, Wuhan Iron and Steel Company etc. He has published more than 200 academic papers, three monographs, and received 7 invention patents. He acquired the first class awards for Hubei Science and Technology Progress for two times.

Abstract: High strength bainitic steels are widely applied in many industrial fields due to the favorable combination of strength and ductility. For the composition design of high strength bainitic steels, several alloying elements such as Mn, Cr, Mo and Ni are usually added into steels to achieve enough hardenability. The addition of Ni affects the microstructure and property due to its stabilization to austenite. To obtain high strength in bainitic steel as well as good impact property, two steels with and without Ni addition were designed. The effects of Ni addition on strength, hardness and toughness were investigated. The results show that the bainitic transformation tends to happen at a relative low temperature range with 1.50% Ni addition, resulting in the lath-like bainitic microstructure. Both the yield and tensile strength increase with Ni addition. In addition, the impact toughness of Ni-bearing steel is obviously improved compared with the steel free of Ni addition. Lath-like bainite contributes to the excellent toughness due to the high dislocation density in bainitic laths and the absence of cementite. The results in the present work provide references for the composition design of bainitic steels. 

 

Assoc. Prof. Aleksey Vedyagin
BORESKOV INSTITUTE OF CATALYSIS SB RAS, RUSSIA & TOMSK POLYTECHNIC UNIVERSITY, RUSSIA

Speech Title: New Trends in Automotive Exhaust Gas Purification Materials: Improvement of the Support against Stability of the Active Components

In 1997 I was graduated from Omsk State University. From 1999 to 2001 I was post-graduate student at Boreskov Institute of Catalysis of Siberian Branch of Russian Academy of Sciences, Russia. I defended my PhD thesis entitled “Catalytic dehydrogenation of methanol over supported copper catalysts” in 2005. From 2004 till 2014 I was an associate professor at Novosibirsk State Technical University, Russia. At the same time, since 2004 till 2008 I was a scientific researcher at Boreskov Institute of Catalysis. In 2008 I became a scientific secretary of the institute. Now I am a deputy director on science of BIC, head of Laboratory for nanostructured catalysts and sorbents research, head of Department of materials science and functional materials. My scientific interests are heterogeneous catalysis, oxide and metal catalysts, carbon nanostructures, carbon-based composites, dense and porous membranes, nanomaterials, nanotoxicology, etc.

Abstract: Lanthanum and zirconium oxides are well known to be applied as an additive to improve the properties of the commercial alumina. Such modified aluminas are widely used in different catalytic fields including three-way catalysis. In the present research we have paid attention to the possible effects of the doping on the catalytic performance and stability of bimetallic Pd-Rh catalysts. The samples were prepared via an incipient wetness impregnation of the commercial supports, tested in CO oxidation under prompt thermal aging regime and characterized by physicochemical methods.