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Meeting 2022 TMS Annual Meeting & Exhibition
Symposium Structural Metamaterials
Presentation Title Single Test Evaluation and Design of Directional Elastic Properties in Anisotropic Materials
Author(s) Jagannadh Boddapati, Moritz Flaschel, Siddhant Kumar, Laura De Lorenzis, Chiara Daraio
On-Site Speaker (Planned) Jagannadh Boddapati
Abstract Scope When the elastic properties of structured materials become direction-dependent, the number of descriptors of their elastic properties increases. In two-dimensions (2D), for example, an anisotropic material can be described by up to 6 independent constants, as opposed to 2, when the properties are direction-independent. Such high number of independent elastic constants expands the design space of structured materials, and leads to unusual phenomena, such as materials that can twist under uniaxial compression. However, this increased number of independent parameters also makes the experimental evaluation of anisotropic material properties more challenging. In this talk, we will present an experimental technique to evaluate the 6 independent elastic constants in 2D structured materials, from a single experiment. The technique combines digital image correlation, unsupervised machine learning, and a multi-axis load cell in a mechanical testing machine, to extract all 6 independent elastic constants, using displacements and global force data.
Proceedings Inclusion? Planned:


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
Architectured Bioinspired Alumina with a Metallic Nickel Compliant-phase
Bioinspired Hierarchical Architected Structures Via Additive Manufacturing
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
Flexibly Tunable Yet Strong Gear-based Mechanical Metamaterials
G-32: Coated Nano- and Micro-lattices via Magnetron Sputtering
G-33: 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
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
Single Test Evaluation and Design of Directional Elastic Properties in Anisotropic Materials
Structural Locking in Multimodal Origami Metamaterials
Topological States and Bandgaps in Dimerized Minimal Surfaces
Viscoelastic Dynamics of Polymeric Phononic Materials

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