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About this Symposium
Meeting 2022 TMS Annual Meeting & Exhibition
Symposium Structural Metamaterials
Sponsorship TMS Materials Processing and Manufacturing Division
TMS Structural Materials Division
TMS: Additive Manufacturing Committee
TMS: Mechanical Behavior of Materials Committee
Organizer(s) Amy Wat, Lawrence Livermore National Laboratory
Brad L. Boyce, Sandia National Laboratories
Xiaoyu Rayne Zheng, University of California, Los Angeles
Fabrizio Scarpa, University of Bristol
Robert O. Ritchie, University of California, Berkeley
Scope Recent advances in additive manufacturing have enabled the development of structural metamaterials with novel combinations of mechanical properties and multifunctional capabilities. Mechanical metamaterials can be formed with properties ranging from negative Poisson’s ratio and stiffness, inverted compressibility, fluid-like behavior, to programmable elastic response to mechanical stimuli. Hierarchical materials enable customization of materials with novel combinations of mechanical, optical, or electrical properties.

This symposium will focus on structural metamaterials based on metals, which include lattices, periodic surfaces, and architected composite materials. This symposium seeks to further the understanding of architectured structure with on properties including but not limited to elasticity, strength, fracture, fatigue, shock, plastic flow, etc. Beyond mechanical properties, the unusual thermal, electrical, chemical and multi-functional performance of such metamaterials are also relevant. In addition, the symposium emphasizes the effects of the underlying base material and the manufacturing methods used to design and produce metamaterials. Effects such as surface roughness, heterogeneous microstructure, and residual stress are rarely considered in design of metamaterials but can have a profound effect on their ultimate performance and reliability.

Topics will include:
• Effects of microstructure and defects on metamaterial performance
• Manufacturing challenges associated with metamaterials
• Multimaterial solutions & architected composites
• Effects of length scales on elasticity, strength, fracture, fatigue, dynamic properties, and plastic flow of metamaterials
• Changes in deformation caused by architectural features in metamaterials
• Ballistic and dynamic compression responses of metamaterials
• In-situ and ex-situ mechanical testing methodologies for metamaterials
• Modeling and simulation at all scales of mechanical behavior of metamaterials

Abstracts Due 07/19/2021
Proceedings Plan Planned:
PRESENTATIONS APPROVED FOR THIS SYMPOSIUM INCLUDE

3D-printable cactus and spider-silk hydrogel composites for next generation multifunctional and sustainable energy absorptive metamaterials
A Comparison of Energy Absorption Behavior of Additively Manufactured AlSi10Mg Honeycomb, Lattice and TPMS Cellular Structures Under Quasistatic Compression
Additive Manufacturing of Meta-Sandwich Structures
Architectured Bioinspired Alumina with a Metallic Nickel Compliant-Phase
Bioinspired hierarchical architected structures via additive manufacturing
Coated nano- and micro-lattices via magnetron sputtering
Combined effects of heterogeneity and length-scale on mechanical properties of lattice metamaterials
Controlling failure with fractal chiral metamaterials
Design of 2D-Mechanical Metamaterials with Spinodal Topologies
Engineering splat based features for improved damage tolerance in brittle metamaterials
Exceptional mechanical properties of additively manufactured nano-architected materials with complex topologies
Fabrication, Microstructure and High Temperature Mechanical Properties of Inconel 718 Lattice Structures Manufactured via Laser Powder Bed Fusion
Flexibly tunable yet strong gear-based mechanical metamaterials
Gaussian Process Regression as a Surrogate Model for the Computation of Dispersion Relations
High-stiffness metamaterial composite structure with plate reinforced strut-microlattice
Interpenetrating chain lattices with tailorable energy absorption in tension
Investigation on Mechanical Properties of Honeycomb-based Cellular Solids and Cylindrical Shells with Structural Hierarchy
Large-Strain Compressive Response and Failure Mechanisms of Additively Manufactured Cubic Chiral Lattices
Machine learning design of dynamic/impact behaviors
Machine learning of symbolic expressions to model dispersion curves in metamaterials
Multi-phase viscoelastic kirigami plates
Phase Field Modeling of Crack Propagation, Deflection and Delamination in Engineered Interfaces
Seeing Beneath the Surface: Estimating Interior Material Properties with Visual Vibration Tomography
Sensitivity and Uncertainty Quantification Analysis in Phononic Metamaterials through Complex-Variable Finite Element Method
Sequential deformation in metamaterials tuned by elastoplastic buckling
Single test evaluation and design of directional elastic properties in anisotropic materials
Structural locking in multimodal origami metamaterials
Tailoring microstructures of 3D printed heterogeneous foams for enhanced energy absorption
Temperature and Stress-induced Recovery in Artificial Shape Memory Alloys
Topological states and Bandgaps in Dimerized Minimal Surfaces
Viscoelastic dynamics of polymeric phononic materials


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