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Meeting 2018 TMS Annual Meeting & Exhibition
Symposium Design for Mechanical Behavior of Architectured Materials via Topology Optimization
Presentation Title Design of Honeycomb TWIP Steels for Maximum Energy Absorption
Author(s) Mackenzie E. Jones, David Garcia, Yunhui Zhu, Hang Z. Yu
On-Site Speaker (Planned) Mackenzie E. Jones
Abstract Scope Loading of Twinning Induced Plasticity (TWIP) steels results in deformation twinning, dislocation-twin interactions, and consequently extensive plastic deformation with significant strain hardening, rendering TWIP steels a great candidate for energy absorption applications. Coupling an architectured honeycomb topology with the bulk material properties can further improve the energy absorption efficiency while simultaneously achieving lightweighting. By fabricating architectured TWIP steel samples through investment casting of 3D printed designs, we explore the influences of geometric factors, such as the strut diameter to length ratio, on the overall mechanical performance. We propose a way to optimize the topology for energy absorption by incorporating digital image correlation (DIC)-based deformation mapping with 3D finite element modeling (FEM). With the constitutive behavior of the steel calibrated by matching the local deformation data, the optimal topology can be determined using global optimization algorithms and then validated experimentally.
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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