Chalmers University of Technology, Sweden
Magnus Hörnqvist Colliander is an associate professor at the Department of Physics at Chalmers University of Technology in Sweden.
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His research is focussed on the relationship between microstructure and external loads and environments on the performance of materials for high temperature applications, in particular in relation to the effects of oxidation on crack growth. Prior to joining Chalmers, he worked eight years as a researcher and research leader at GKN Aerospace Engine Systems (previously Volvo Aero Corporation), exploring materials for use in hot sections of aero engines and rocket engines.
College of Engineering and Informatics, Galway
Talk Title: Towards a microstructure-sensitive, through-process model for fatigue of welded connections
Sean Leen is Professor of Mechanical Engineering at NUI Galway since 2008. He is a member of the Ryan Institute for Environment, Marine and Energy.
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Sean is an SFI-funded Principal Investigator in the I-Form Advanced Manufacturing Research Centre and of a project called MECHANNICS: Multi-scale, through-process characterisation for innovative manufacture of next-generation welded connections. He was previously Associate Professor in Mechanical Engineering at University of Nottingham, where he completed his PhD with Professor Tom Hyde. Sean previously worked within the Rolls-Royce University Technology Centres for Advanced Manufacture and Advanced Gas Turbine Transmissions at the University of Nottingham. He also worked for some time in engineering consultancy on finite element software development for the design and analysis of offshore oil and gas structures. Sean’s research interests include computational solid mechanics, with particular application to high temperature plasticity, contact mechanics, manufacturing processes and structural integrity (e.g. fatigue, fretting and wear).
Naval Nuclear Laboratory, USA
Talk Title: Understanding elevated temperature aqueous fatigue crack growth behavior in type 304/304L stainless steel through testing, advanced characterization, and multiscale modelling
Dr. Bryan D. Miller is a Principal Engineer in the Plant Materials and Laboratory Services Department at the Naval Nuclear Laboratory in West Mifflin, Pennsylvania.
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Dr. Miller's research focuses on developing a fundamental understanding of the mechanisms responsible for environmentally assisted cracking in stainless steel alloys used in nuclear power systems and supporting the development of physically-based models of crack growth. This work is conducted using a combination of mechanical testing in different environments and the application of advanced materials characterization techniques to observe the effects of deformation and the corrosion process on cracking behavior. Dr. Miller received his Ph.D. in Materials Science and Engineering from the University of Illinois Urbana-Champaign in 2009, under the direction of Professor Ian M. Robertson, and his Bachelor of Science degree, majoring in Physics and Mathematics, from Southeast Missouri State University in 1996.
MINES ParisTech, France
Henry Proudhon Graduated in 2001 from Ecole Centrale Lyon in France in Mechanical Engineering. He received his Ph.D. in Material Science in 2005 from INSA Lyon working on investigating fatigue cracking mechanisms with synchrotron X-ray tomography.
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He then went to the University of British Columbia to work with Prof. Warren Poole on ultra fine grained materials and the Bauschinger effect. In 2007 he joined CNRS, the French national research institute for science, at Centre des Materiaux MINES ParisTech to carry out his research on ‘Three dimensional study of deformation and fracture in polycrystalline materials: from syn-chrotron X-ray investigations to computational mechanics’. In 2015 he defended his habilitation thesis and also was associated to the DiffAbs beamline at the SOLEIL synchrotron near Paris.
Last year he was a visiting researcher at UC Santa Barbara in Tresa Pollock’s research group, to work on Ni base superalloys and TiAl alloys. Back in Europe, he continues to work to improve structural materials with partners like Safran, Dassault Aviation or Arkema. He has co-authored more than 50 publications in international peer reviewed journal and received several award such as the FEMS/TMS Young Leader International Scholar award in 2016.
Bangalore Integrated System Solutions, India
Talk Title: Sequence effects in fatigue crack growth under near-threshold flight-spectrum loading
Dr. Ramasubbu Sunder is Director of Research at BISS (P) Ltd, Bangalore, India. Professional experience includes 14 years research at the National Aerospace Laboratories, Bangalore, two years of full-time and several years of part-time association with the US Air Force Laboratory and University of Dayton Research Institute and 25 years as founder-director of BISS (P) Ltd, manufacturer of mechanical test equipment.
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Long term research interest is fatigue crack growth under spectrum loading with focus on early crack growth including the sensitivity of threshold conditions to load history. His discovery of the influence of near-tip residual stress on atmospheric near-threshold fatigue crack growth led to the development of test technology and experimental procedure to characterize threshold stress intensity as a function of controlled near-tip residual stress induced by periodic overloads. Dr. Sunder is a Fellow of Indian Academy of Sciences and office bearer, Indian Structural Integrity Society (InSIS).
Cornell University, USA
Talk Title: The mechanistic view of pbf ti-6al-4v high cycle fatigue performance
Derek is the current director of the Cornell Fracture Group. The group conducts both scientific and engineering research aimed at understanding and predicting the deformation and failure of structures. A primary scientific goal of the group is to illuminate and model the underlying physical mechanisms that control the failure of engineering materials.
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The group's effort in this area supports the group's engineering objective to advance the capability to predict the deformation and failure of structures through the utilization of new knowledge and modeling techniques. Derek joined the School of Civil and Environmental Engineering in October 2007. Prior to this he was a Postdoctoral Research Associate in the Division of Engineering at Brown University, where he worked in the Mechanics of Solids Group. He completed his Ph.D. in Mechanical Engineering at Johns Hopkins University in 2006. During the 2013 academic year, Derek was a Visiting Professor in the Computational Solid Mechanics Laboratory at École polytechnique fédérale de Lausanne in Switzerland.
Ohio State University, USA
Jenifer (Warner) Locke is an assistant professor in the Department of Materials Science and Engineering and the Fontana Corrosion Center at The Ohio State University and holds the DNV-Roger W. Staehle Designated Professorship.
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Jenifer’s primary research interests are in environment assisted cracking (EAC) and corrosion of metals and alloys. Particularly, Jenifer has interest in advancing laboratory EAC experimental capabilities to enable improved understanding of unique service environments, quantifying and understanding metallurgical and thermo-mechanical processing effects on occluded site electrochemistry in corrosion and EAC of metals, and in inhibition of EAC. Jenifer currently has funded programs with ONR, NSF, LIFT, and the DOE. Jenifer has ongoing industry collaborations with DNV-GL, Arconic, Ford, Honda, PPG, United Technologies, and Lockheed Martin. Before joining OSU in January 2015, Jenifer held a position at the Alcoa (now known as Arconic) Technical Center, the R&D facility for Alcoa (now known as Arconic) Inc, where she worked in alloy development, EAC, and corrosion of aerospace and automotive aluminum alloys. Prior to Alcoa, Jenifer received her Ph.D. in Materials Science and Engineering from the University of Virginia in 2010, her B.A. in Physics from Wittenberg University in 2004, and worked for year at the Air Force Research Laboratory at Wright Patterson Air Force Base.