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Meeting 2018 TMS Annual Meeting & Exhibition
Symposium Design for Mechanical Behavior of Architectured Materials via Topology Optimization
Presentation Title Optimal Design of Architected Materials with Extreme Energy Dissipation
Author(s) Lorenzo Valdevit, Alireza Asadpoure, Babak Haghpanah
On-Site Speaker (Planned) Lorenzo Valdevit
Abstract Scope Architected cellular materials have been extensively investigated over the past two decades, for their potential to achieve combinations of properties unavailable in any existing monolithic material. One technological challenge that can be elegantly addressed by architected materials is the design of lightweight solids which simultaneously exhibit high stiffness and high energy dissipation. In this talk, we will discuss two different approaches to achieve this goal. First, we present a novel multi-phase topology optimization algorithm to design the unit cell topology of a periodic metal/elastomer cellular material with exceptional combinations of high stiffness, low density and high loss coefficient under wave propagation. Second, we present a numerical tool for the design of a single-phase elastic cellular material encompassing carefully positioned negative stiffness elements, optimized for exceptional combinations of stiffness, strength and loss coefficient under quasi-static and cyclic loads. The exceptional multifunctional performance predicted by the models is demonstrated experimentally.
Proceedings Inclusion? Planned: Supplemental Proceedings volume


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 Honeycomb TWIP Steels for Maximum Energy Absorption
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
L-29: 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 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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