2018 MRS Fall Meeting Home

Symposium PM01—Architected MaterialsSynthesis, 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, two-photon polymerization) 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, wave/matter interaction and other multifunctional properties, which promise dramatic advances across important technology areas such as lightweight structures, functional coatings, bio-scaffolds, catalyst supports, photonic/phononic systems 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: (i) Advances in solid free-form manufacturing (e.g. stereolithography, SLS, SLA, new direct write techniques, etc…); (ii) Novel parallel and batch processing techniques for scalable manufacturing; (iii) 3D weaving, knitting and other fiber forms/preforms; (iv) Multi-material, multi-length-scale fabrication processes; (v) Scalable self-assembly techniques.
  • Modeling, Analysis and Optimal Design (i) Optimization of architectural topology (structure-to-property relations); (ii) Inverse methods (function-to-structure); (iii) Multi-scale multi-physics modeling of multi-functional properties; (iv) Multi-scale testing (e.g. linking constituent, topological and bulk properties); (v) 3D tomography and related techniques; (vi) Modeling of non-linear mechanical/physical response; (vii) Modeling of wave/matter interaction
  • Applications of optimal architected materials: (i) Structural materials (e.g. micro-lattices, ordered foams); (ii) Band gap architecture in wave propagation (e.g., metamaterials, phononic crystals); (iii) Designed bio-scaffolds (e.g. bone/tissue growth); (iv) Multi-scale multi-functional materials (e.g. mechanical support + catalysis, thermostructural management); (v) Energy applications (e.g. collectors, electrodes, heat exchange, filtration); (vi) Impact, shock and blast.

Invited Speakers:

  • William Carter (HRL Laboratories, USA)
  • Itai Cohen (Cornell University, USA)
  • Chiara Daraio (California Institute of Technology, USA)
  • Nicholas Fang (Massachusetts Institute of Technology, USA)
  • Julia Greer (California Institute of Technology, USA)
  • Sebastian Guenneau (CNRS Marseille, France)
  • Micheal Haberman (The University of Texas at Austin, USA)
  • Martin Van Hecke (Leiden University, Netherlands)
  • Dennis Kochmann (ETH Zurich, Switzerland)
  • Carolin Körner (University of Erlangen, Germany)
  • Jennifer Lewis (Harvard University, USA)
  • Damiano Pasini (McGill University, Canada)
  • Ruth Schwaiger (Karlsruhe Institute of Technology, Germany)
  • Kristina Shea (ETH Zurich, Switzerland)
  • Christopher Spadaccini (Lawrence Livermore National Laboratory, USA)
  • Haydn Wadley (University of Virginia, USA)

Symposium Organizers

Lorenzo Valdevit
University of California, Irvine
Mechanical and Aerospace Engineering
USA
949-824-4173, valdevit@uci.edu

Katia Bertoldi
Harvard University
Division of Engineering and Applied Sciences
USA

Tobias Schaedler
HRL Laboratories, LLC
Sensors and Materials
USA
310-317-5385, taschaedler@hrl.com

Martin Wegener
Karlsruhe Institute of Technology
Institute of Applied Physics
Germany
49 721 608 43401, martin.wegener@kit.edu

Keywords for Abstract Submission

Additive Manufacturing, Architected Materials, Cellular materials, Metamaterials