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SUMMARY:IGM Colloquium: From ferroelectric ceramics to their structural an
 alogs
DTSTART:20180227T121500
DTEND:20180227T131500
DTSTAMP:20260917T150125Z
UID:68626b4bed026fbaee650dea0abfa9628ed6afd6820e56d48365733c
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Dennis Kochmann\, ETH Zürich\n\nWhat do active ceramics
  and soft structures have in common? Two seemingly distinct systems serve 
 to illustrate the power of structural transformations\, and the challenges
  involved in modeling those across scales.\nFerroelectric ceramics are key
  to most sensor and actuator technologies\, owing to their electro-mechani
 cal coupling: they deform under applied electric fields\, and they produce
  electric charges under deformation. What is frequently exploited at the d
 evice level\, has a complex origin at the atomic scale\, whose understandi
 ng hinges upon models and techniques that bridge from the atomic scale of 
 angstroms and femtoseconds all the way up to millimeters and seconds. We d
 iscuss how information from all scales can be combined into simulations th
 at predict the macroscale material behavior in comparison with experiments
 . Once having gained insight into the fundamental mechanisms\, we seek str
 uctural analogs of the ferroelectric switching\; i.e.\, we discuss how mec
 hanical structures or metamaterials can be conceived\, which not only mimi
 c some of the atomic-scale phenomena of structural transformations qualita
 tively but can even be described quantitatively by the same models. In sum
 mary\, we discuss – through theory\, simulations and experiments – the
  path from ferroelectric ceramics to their structural analogs.\n\nBio:\n\n
 Professor Dennis Kochmann received his Diploma and his doctoral degree in 
 Mechanical Engineering from Ruhr-University Bochum in Germany. He also rec
 eived a Master’s degree in Engineering Mechanics from the University of 
 Wisconsin-Madison where he spent one year as a Fulbright fellow. He was a 
 postdoc at the University of Wisconsin as well as a Humboldt fellow at Cal
 tech before joining the faculty of the Aerospace Department at Caltech in 
 September 2011. From 2011 to 2017 he was Assistant and later Full Professo
 r of Aerospace at Caltech\, before moving to ETH Zurich as Professor of Me
 chanics and Materials in April 2017. His research focuses on the link betw
 een structure and properties of a variety of materials and employs methods
  of theoretical\, computational and experimental mechanics (including cont
 inuum and atomistic modeling\, scale-bridging\, multiscale models\, phase 
 field techniques\, and experimental material characterization). He also de
 velops novel materials with controllable properties by careful microstruct
 ural architecture. His research has been recognized by\, among others\, th
 e Bureau Prize in Solid Mechanics form IUTAM\, the Richard von Mises Prize
  by GAMM\, an NSF CAREER Award\, the T.J.R. Hughes Young Investigator Awar
 d by the ASME and\, recently\, an ERC Consolidator Grant.\n 
LOCATION:MED 0 1418 https://plan.epfl.ch/?room==MED%200%201418
STATUS:CONFIRMED
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