| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Heterostructured and Gradient Materials (HGM VI): Principle, Processing and Properties
|
| Presentation Title |
Harmonic-Structure Material Design: What is Truly Special to Deliver Unique Properties? |
| Author(s) |
Dmytro Orlov, Yan Beygelzimer |
| On-Site Speaker (Planned) |
Dmytro Orlov |
| Abstract Scope |
By now, heterogeneous materials with harmonic-structure (HS) design are well established in the research community as one of the top-performers with a unique strength-ductility combination. Nevertheless, the unique combination of aforementioned mechanical properties is not well understood and explained in terms of microarchitecture-property relationship. Our own contributions into the field include the development of analytical and finite-element models along with experimental in situ studies based on employing digital-image correlation and advanced synchrotron-based techniques. In this talk, we present analytical models along with experimental confirmations explaining how microarchitecture-induced stress and strain partitioning in HS materials lead to the unique deformation mechanisms at elastic-plastic transition and developed plastic deformation stages. While the former enable better performance than traditional composites and rule-of-mixture expectations in general, the latter also reveals self-similarity in stress-strain behaviour. These discoveries simplify the mathematical description of HS and help unravelling hidden patterns in their deformation mechanisms. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Mechanical Properties, Powder Materials, Computational Materials Science & Engineering |