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2015 MRS Fall Meeting Logo2015 MRS Fall Meeting & Exhibit

November 29-December 4, 2015 | Boston
Meeting Chairs: T. John Balk, Ram Devanathan, George G. Malliaras, Larry A. Nagahara, Luisa Torsi

Symposium XX—Architected Materials—Synthesis, Characterization, Modeling and Optimal Design

Architected materials are multi-phase and/or cellular materials in which the topological distribution of the phases is carefully controlled and optimized. Nearly two decades of research has resulted in the identification of a number of topologically simple, easy to fabricate, well established topologies (including honeycombs and truss lattices), which have been optimized for specific stiffness and strength, impact and blast protection, sound absorption, wave dispersion, active cooling and combinations thereof.

Over the past few years, dramatic advances in processing techniques, including polymer-based templating (e.g., stereolithography, photopolymer waveguide prototyping) and direct single- or multi-material formation (e.g., direct laser sintering, deformed metal lattices, 3D weaving and knitting), have enabled fabrication of new architected materials with arbitrarily complex architectures and remarkably precise control over the geometric arrangement of solid phases and voids from the nanometer to the centimeter scale.

The ordered, topologically complex nature of these materials and the degree of precision with which their features can now be defined suggests the development of new multi-physics multi-scale modeling tools that can enable optimal design. The result is efficient multi-scale cellular materials with unprecedented ranges of density, stiffness, strength, energy absorption, porosity/permeability, chemical reactivity and other multifunctional properties, which promise dramatic advances across important technology areas such as lightweight structures, functional coatings, bio-scaffolds, catalyst supports and other applications.

This symposium will cover new processing methods, advanced multi-scale characterization techniques, modeling and analysis tools, and explore new automotive, aerospace, medical and energy applications.

Topics will include:

  • Advances in Manufacturing
    • Solid free-form manufacturing (e.g. Stereolithography, Laser Sintering, Direct Write Techniques)
    • Novel parallel and batch processing techniques for scalable manufacturing
    • 3D weaving, knitting and other fiber forms/preform
    • Multi-material, multi-length-scale fabrication processes
    • Scalable self-assembly techniques
  • Modeling, Analysis and Optimal Design
    • Optimization of architectural topology (structure-to-property relations)
    • Inverse methods (function-to-structure)
    • Multi-scale multi-physics modeling of multi-functional properties
    • Multi-scale testing (e.g. linking constituent, topological and bulk properties)
    • 3D tomography and related techniques
    • Modeling of non-linear mechanical/physical response
  • Applications of optimal architected materials
    • Structural materials (e.g. microlattices, ordered foams)
    • Impact, shock and blast absorption
    • Band gap architecture in wave propagation problems (e.g., metamaterials, phononic crystals)
    • Designed bio-scaffolds (e.g. bone/tissue growth)
    • Multi-functional materials (e.g., mechanical support + catalysis, thermostructural management)
    • Energy applications (e.g. current collectors, battery electrodes, heat exchange, filtration)

Invited Speakers:

  • William B. Carter (HRL Laboratories, LLC, USA)
  • Vikram Deshpande (Cambridge University, United Kingdom)
  • Nicholas Fang (Massachusetts Institute of Technology, USA)
  • Julia R. Greer (California Institute of Technology, USA)
  • James K. Guest (Johns Hopkins University, USA)
  • Kevin Hemker (Johns Hopkins University, USA)
  • Jonathan B. Hopkins (University of California, Los Angeles, USA)
  • Oliver Kraft (Karlsruhe Institute of Technology, Germany)
  • Jennifer A. Lewis (Harvard University, USA)
  • Kurosch Rezwan (University of Bremen, Germany)
  • Massimo Ruzzene (Georgia Institute of Technology, USA)
  • Haydn N. G. Wadley (University of Virginia, USA)
  • Frank W. Zok (University of California, Santa Barbara, USA)

Symposium Organizers

Lorenzo Valdevit
University of California, Irvine
Mechanical and Aerospace Engineering

Katia Bertoldi
Harvard University
School of Engineering and Applied Science

Alan J. Jacobsen
HRL Laboratories, LLC
Sensors and Materials Laboratory

Christopher M. Spadaccini
Lawrence Livermore National Laboratory
Center for Micro and Nano Technology