Philippe SpätigPhilippe Spätig is currently Adjunct Professor at EPFL in the School of Basic Sciences, in the Laboratory of Reactor Physics and Systems Behaviours. He obtained his diploma of Engineer Physicist at EPFL in 1991 and his PhD at EPFL in 1995 on the role of thermal activation in the plasticity of the intermetallic Ni3Al. From 1995 to 1997, he worked as postdoc in the Materials Group of the Center for Research in Plasma Physics at EPFL, studying the effects of high-energy proton irradiation on alloys and pure metals. He then moved to the University of California Santa Barbara and spent two years in the group of Professor G.R. Odette, working on fracture mechanics of ferritic structural steels. He joined again the Materials Group of the Center for Research in Plasma Physics at EPFL in 2000 and worked in this group until the end of 2012. His research was focused on irradiation hardening and embrittlement of steels, as well as on the development of oxide dispersion strengthened steels. He also worked and developed experimental and analytical small specimen test techniques to reliably extract mechanical properties from limited material volume. In 2013, he joined the Laboratory for Nuclear Materials at Paul Scherrer Institute, while being associated with the Laboratory for Reactor Physics and System Behaviours at EPFL. Since then he mainly works on environmentally-assisted fatigue and fracture on austenitic and pressure vessel steels, where the effects of light water reactor environment on mechanical properties are investigated.
Roland LogéRoland Logé is an associate professor at EPFL, with a primary affiliation to the Materials Institute, and a secondary affiliation to the Microengineering Institute.
After graduating in 1994 at UCL (Belgium) in Materials Engineering, he earned a Master of Science in Mechanics in 1995, at UCSB Santa Barbara (USA). He received his PhD at Mines Paristech-CEMEF (France) in 1999, where he specialized in metal forming and associated microstructure evolutions. After a postdoc at Cornell University (USA) between 1999 and 2001, he entered CNRS in France.
In 2008, he was awarded the ALCAN prize from the French Academy of Sciences, together with Yvan Chastel.
In 2009 he became head of the Metallurgy-Structure-Rheology research group at CEMEF.
In 2011, he launched a “Groupement de Recherche” (GDR), funded by CNRS, networking most of the researchers in France involved in recrystallization and grain growth.
In 2013, he became Research Director at CNRS.
In March 2014 he joined EPFL as the head of the Laboratory of Thermomechanical Metallurgy.
Cyril CayronMes recherches: J'ai travaillé comme microscopiste/cristallographe/métallurgiste sur des projets très variés comme les aciers pour le nucléaire, les alliages titane et nickel pour l'aéronautique, les interconnections en cuivre pour la microélectronique, les piles à combustible haute et basse température, le silicium photovoltaïque hétérojonction et monolike, les batteries au lithium à base de LiFePO4 et silicium. Derrière la plupart de ces sujets de recherche appliquée se cachent des problèmes de recherche fondamentale comme celui lié aux transformations de phases. J'ai donc été amené à travailler sur ce sujet passionnant et j'ai pu démontrer que les variants cristallographiques générés par des transitions structurales forment une structure algébrique de groupoïde. Ces travaux ont mené au développement du logiciel de reconstruction des grains parents à partir de données EBSD appelé ARPGE et distribué dans plus de 20 pays. En 2013-2015 j'ai proposé un nouveau modèle cristallographique pour les transformations martensitiques fcc-bcc dans les aciers, comme une alternative à la théorie phénoménologique de la transformation martensitique. Ce modèle a été depuis étendu aux transformations fcc-hcp (type cobalt), bcc-hcp (type titane) et bcc-fcc (type laiton), ainsi qu’à differents modes de maclage mécanique dans les métaux fcc et hcp. Ce modèle à sphères dures montre que la transformation implique une «distorsion angulaire», forme plus générale que le cisaillement. Le modèle prévoit la possibilité que le plan d’interface de certaines macles mécaniques ne soit pas un plan invariant. Un tel cas de maclage « exotique » a été observé expérimentalement par EBSD en 2017 dans un monocristal de magnésium pur. Je travaille maintenant à définir de manière algébrique les concepts de variants (orientation, distortion, correspondance), et sur les types de macles mécaniques (I, II, et d'autres oubliés des théoriques classiques). Mon parcours : 2014-maintenant: Collaborateur scientifique à l'EPFL/LMTM, Neuchâtel, Suisse. J'aide le professeur Roland Logé dans ses travaux de recherche sur les liens entre les fortes déformations, les textures, les tailles de grains et les transformations de phases (diffusives et displacives). Je suis en charge de la salle de métallographie et des caractérisations SEM, EDS, EBSD, TEM, HRTEM. Je codirige trois thèses (Annick Baur, Margaux Larcher, Céline Guidoux). Je suis reviewer pour Acta Mater., Scripta Mater., Acta Cryst., J. Appl. Cryst., Mater. Charact., etc. 2000-2014: Ingénieur de recherche et responsable du groupe Nanocaractérisation, CEA/LITEN, Grenoble, France. 2012 : Habilitation à Diriger des Recherches (HDR). 1996-2000: Thèse sur l'étude par microscopie électronique de composites à matrice aluminium. Directeur de thèse Philippe Buffat, CIME, EPFL, Lausanne, Suisse. J'ai pu montrer un lien cristallographique entre différentes phases des alliages 2xxx et 6xxx et proposer pour la première fois une structure complète pour la phase beta prime des nanoprécipités. 1995-1996: Scientifique du contingent, travail sur les écrans électrochromes, COGIDEV, Rueil-Malmaison, France, fondé par M. André Giraud, ancien ministre de la défense et ancien ministre de l’industrie. 1992-1995: Ecole Nationale Supérieure des Mines de Nancy, France
Dimitrios LignosProf. Lignos joined the École Polytechnique Féderale de Lausanne (EPFL) in 2016 from McGill University in Canada where he was a tenured Associate Professor and a William Dawson Scholar for Infrastructure Resilience. He holds a diploma (National Technical University of Athens, NTUA, 2003), M.S. (Stanford University, 2004) and Ph.D. (Stanford University, 2008). In addition, he was a post-doctoral scientist at Stanford University (2009) and in Kyoto University (2010). Prof. Lignos teaches graduate and undergraduate courses in seismic design, nonlinear behaviour of steel and composite structures as well as supplemental damping systems, Structural Stability, Nonlinear Analysis and Performance-based Earthquake Engineering. His awards for teaching, research and service in Civil Engineering include the 2011 Outstanding Teaching Award (Faculty of Engineering, McGill University), as well as the Outstanding reviewer (2012, 2013) award from ASCE, the 2013 State-of-the-Art in Civil Engineering Award by ASCE and the 2014 Christophe Pierre Award for Research Excellence - Early Career. Just recently, he received the 2019 Walter L. Huber Civil Engineering Research Prize from ASCE for significant contributions in developing state of the art methods to simulate extreme limit states in steel structures.Prof. Lignos is a member of ASCE and the Earthquake Engineering Research Institute. He acts as an Associate Editor for Metal Structures and Seismic Effects of the ASCE Journal of Structural Engineering. He joined the Editorial Board of Earthquake Spectra and Earthquake Engineering and Structural Dynamics International journals. He serves as an acting member of the CEN/TC 250/SC 8/WG 2 and has been selected as a member of the Project Team (PT2) for the Eurocode 8-Part 1 Current Revisions for Steel and Composite Structures. He is also a member of the Canadian Standards Association (CSA) S16 technical committee for Steel Structures. Prof. Lignos is involved as a NEHRP consultant in numerous research-to-practice projects related to the behaviour and nonlinear modelling and analysis of structures applicable to the engineering practice through the Applied Technology Council (ATC). Detailed Curriculum Vitae (last update September 2018)
Daniele MariDaniele Mari was born in Milan in 1961, After a scientific high school degree obatained in Italy Daniele Mari joins EPFL in 1980 and graduates in Physics in 1986. In 1991, he obtains the Ph.D. from the same institution working in the field of metal-ceramic composites. From 1992 to 1993 he continues his research as a post-doc at the Massachusetts Institute of Technology with a work on shape-memory alloys. In 1993, he joins the company Amysa Yverdon SA (Switzerland) as director of Research and Development and creates ACME (Advanced Composite & Microwave Engineering) with activities in the fields of the electromagnetic heating and materials science. In parallel with his industrial activities, D. Mari has supervised different research projects in materials science at the EPFL. In 2004 he joins the Laboratoire de Physique de la Matière Complexe to develop mechanical spectroscopy in the field of hard materials and steels. He is appointed MER in 2012. Since then he is responsible for the Physics Laboratories (for student training) and Auditoriums. Since 2013 D. Mari is the Deputy Director of the Physics School.
Andreas MortensenAndreas Mortensen is currently Professor and Director of the Institute of Materials at the Swiss Federal Institute of Technology in Lausanne (EPFL), where he heads the Laboratory for Mechanical Metallurgy. He joined the faculty of EPFL 1997 after ten years, from 1986 to 1996, as a member of the faculty of the Department of Materials Science and Engineering at the Massachusetts Institute of Technology, where he held the successive titles of ALCOA Assistant Professor, Associate Professor, and Professor. His research is focussed on the processing, microstructural development and mechanical behavior of advanced metallic materials with particular focus on metal matrix composites and metal foams, on infiltration processing and capillarity, and on damage and fracture in metallic materials. He is author or co-author of two monographs, around one hundred and eighty scientific or technical publications and twelve patents. Born in San Francisco in 1957, of dual (Danish and US) nationality, Andreas Mortensen graduated in 1980 from the Ecole Nationale Supérieure des Mines de Paris with a Diplôme dIngénieur Civil, and earned his Ph.D. in the Department of Materials Science and Engineering at MIT in 1986. Besides his academic employment, he was a postdoctoral researcher at Nippon Steel during part of 1986, and was invited professor at the Ecole des Mines in Paris during the academic year 1995 to 1996. He is a member of the editorial committee of International Materials Reviews and has co-edited four books. He is a Fellow of ASM, a recipient of the Howe Medal and the Grossman Award of the American Society of Metals, was awarded the Péchiney Prize by the French Academy of Sciences and the Res Metallica Chair from the Katholieke Universiteit Leuven, received three EPFL teaching awards, is one of ISIs Highly Cited authors for Materials Science since 2002 and was awarded an ERC advanced grant in 2012.
Eugen Brühwilerbirth date: 19.11.1958 nationality: Swiss (native from Dussnang, Canton of Thurgau) Education : - July 1988 : doctoral degree from the Swiss Federal Institute of Technology in Lausanne (EPFL), Switzerland with a thesis entitled Fracture mechanics of dam concrete subjected to quasi-static and seismic loading conditions - December 1983 : civil engineering diploma (university degree) from the Swiss Federal Institute of Technology (ETH) in Zurich, Switzerland Professional Experience : - Since 1st April 1995 : Professor of Structural Engineering at EPFL and Head of the Laboratory of Maintenance, Construction and Safety for Civil Structures (MCS) (often considered being the first chair worldwide devoted exclusively to existing civil structures). - 1991-94 Project Manager and structural engineer with the Swiss Federal Railways (SBB), Division of Bridges and Structures, Zurich: Monitoring and maintenance of bridges and structures, Project manager and checking engineer for the construction of new bridges and rehabilitation of existing bridges. - 1989/90 Research associate at the Department of Civil Engineering, University of Colorado, Boulder, USA : Fracture mechanics of concrete and fracture of concrete dams. - 1986-88 Doctoral student at EPFL-LMC (Building Materials, Prof. Wittmann) : Fracture mechanics of concrete, fracture of concrete dams under seismic loading - 1984/85 Research engineer at EPFL-ICOM (Steel Structures, Prof. Badoux and Prof. Hirt) : Fatigue behaviour and fracture mechanics of riveted bridges
Peter RyserDr. Peter Ryser is a Professor Emeritus at the Swiss Federal Institute of Technology in Lausanne. He has over three decades of research and teaching experience from various corporate and academic institutions. He was previously a Director at Siemens Building Technologies where he was responsible for R&D, product innovation and patents. Dr. Ryser has a Ph.D. in applied Physics from the University of Geneva, a Masters degree in Experimental Physics and an MBA.
