About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
|
Symposium
|
AI/Data Informatics: Computational Model Development, Verification, Validation, and Uncertainty Quantification
|
Presentation Title |
Computational Design and Optimization of 2D Spinodal Metallic Metamaterials for Improved Structural Behavior |
Author(s) |
Saltuk Yildiz, Pinar Acar |
On-Site Speaker (Planned) |
Pinar Acar |
Abstract Scope |
Spinodal metamaterials consist of smooth architectures with nearly zero curvature value, exhibiting superior mechanical performance and lower stress concentrations compared to traditional surface and truss-based lattice materials. This work conducts a data-driven approach to determine the optimal design parameters for 2D spinodal metamaterials made of additively manufactured Ti-6Al-4V alloy. The presented approach involves the computational design of spinodal topologies represented with Gaussian Random Fields (GRFs). Static structural finite element (FE) simulations are performed to calculate their energy fraction. The strain energy density function is calculated by taking tensile and shear deformations into account. These values are then compared to conventional truss-based metamaterials. A design problem is solved by developing a deep-learning surrogate model to find the optimal cone angles that minimize the energy fraction value. The resulting optimal design is anticipated to extend the potential applications of spinodal materials to aerospace structures that demand high mechanical performance. |
Proceedings Inclusion? |
Planned: |
Keywords |
Modeling and Simulation, Mechanical Properties, Machine Learning |