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Meeting 2018 TMS Annual Meeting & Exhibition
Symposium Design for Mechanical Behavior of Architectured Materials via Topology Optimization
Presentation Title Designing Metamaterials for Enhanced Noise and Vibration Properties
Author(s) Lise Noel, Claus Claeys, Elke Deckers, Wim Desmet
On-Site Speaker (Planned) Lise Noel
Abstract Scope To satisfy industrial requirements, lightweight materials are extremely popular. However, their good mechanical properties are often associated with poor noise and vibration performance. Locally resonant metamaterials were recently developed to combine enhanced mechanical and vibro-acoustic properties. In metamaterials, bandgaps, i.e. frequency ranges with no free wave propagation, are created by including resonant additions on a subwavelength scale. Metamaterials present several advantages. First, bandgaps do not rely on periodicity. Furthermore, low frequencies can be attenuated resorting to light and compact resonators, about two orders of magnitude smaller than the wavelength attenuated. So far, the fine-tuning of metamaterials remains largely based on the designers experience. Density-based topology optimization is exploited to tackle the automatic design of perforated plates exhibiting bandgaps. Assuming periodicity, dispersion properties can be predicted through unit cell modeling and the application of Bloch-Floquet boundary conditions. Specific constraints are imposed to trigger local resonance.
Proceedings Inclusion? Planned: Supplemental Proceedings volume

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A Level Set Based Topology Optimization Framework to Design Extreme Thermos-elastic Microstructure: Influence of Graded Interfaces and Multi-materials
A Panel Discussion for the Design of Materials via Topology Optimization
Deformation and Failure of Bioinspired Segmented Architectured Beams and Plates
Dense Architectured Materials in Engineering and in Nature
Design for Discovery: Integrated Computational Design & Additive Manufacturing of Mechanical Metastructures with a Parametric Level-set Based Approach
Design of Functionally Graded Microstructures with Manufacturability
Design of Honeycomb TWIP Steels for Maximum Energy Absorption
Designing Metamaterials for Enhanced Noise and Vibration Properties
Discrete-element Modeling of Nacre-like Materials: Random Microstructures, Nonlinear Deformations and Fracture
Efficient Microstructural Design: A Topological Sensitivity Approach
Extreme Design: An Adrenalin Rush with Topology Optimization, Metamaterials and Additive Manufacturing
Incorporating Material Heterogeneity in Automated Design Tools
Inverse Homogenization Design of Micro-truss Architected Materials Using Geometric Primitives
Mechanical Properties of Work Hardened Steel Multilayers with Bimodal Grain Size
Multiscale Design with Architected Material Connectivity for Multiphysics Problems
Optimal Design of Architected Materials with Extreme Energy Dissipation
Optimized Microlattices for High Strength and Impact Attenuation
Realizing Optimized Mesoscale 3D Architected Material Designs via Nanoparticle Assembly by Pointwise Spatial Printing
Tailoring the Dynamic Properties of 3D Woven Metallic Lattices through Topology Optimization
Topology Optimization for Sliding Abrasive Wear of Bi-material Composites
Topology Optimization of Architected Materials with Application-specific Tailored Properties
Topology Optimization of Cellular Materials with Tailored Band Gaps
Topology Optimization of Multi-material Truss Lattice Structures via Geometry Projection
Topology Optimization with RVE Lattice Structures Subject to Additive Manufacturing and Stress Design Constraints

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