About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Microstructure-Sensitive Modeling Across Length Scales: An MPMD/SMD Symposium in Honor of David L. McDowell
|
| Presentation Title |
Microstructure-Sensitive Modeling Using Fatigue Indicator Parameters for Advanced Heterogeneous Materials |
| Author(s) |
Yoshiteru Aoyagi |
| On-Site Speaker (Planned) |
Yoshiteru Aoyagi |
| Abstract Scope |
This study builds upon collaborative research with Professor McDowell at the Georgia Institute of Technology, extending the concept of fatigue indicator parameters (FIPs) to a new class of advanced heterogeneous materials. These include high-entropy alloys, heterogeneous nanostructured metals, and thermoplastic polymers—materials that exhibit superior mechanical performance due to intrinsic microstructural heterogeneities such as twinning, lamellar, amorphous, and spherulite structures. Unlike conventional materials, where homogenized models often suffice, these emerging materials demand a microstructure-sensitive approach. This study presents a modeling framework that leverages FIPs to quantify the influence of local microstructural features on macroscopic mechanical behavior. The framework integrates statistical representations of microstructure with multiscale simulations to capture the evolution of local deformation and damage mechanisms. This work not only demonstrates the adaptability of FIP-based modeling to cutting-edge materials systems but also reflects the enduring impact of Professor McDowell’s pioneering contributions to microstructure-informed constitutive modeling, multiscale mechanics, and materials design. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Modeling and Simulation, Mechanical Properties, Computational Materials Science & Engineering |