About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Accelerated Discovery and Insertion of Next Generation Structural Materials
|
| Presentation Title |
Multimaterial Structures: Materials, Test Methods, Models and Data Enabled Topology Optimized Design |
| Author(s) |
Haydn G. Wadley |
| On-Site Speaker (Planned) |
Haydn G. Wadley |
| Abstract Scope |
Using a generic Ti6242S compressor blisk operating at a maximum temperature of 500 oC as a model problem, this study investigates how additively manufactured multi-material concepts might offer higher temperature operation without recourse to nickel-base alloys. The approach recognizes that a spectrum of Ti-based materials are required to provide different functions at different locations. Thus, oxidation resistance is needed in the hottest, but least stressed blade tip locations while resistance to creep is essential in regions of high stress and temperature. The mechanical properties of the large number of material compositions is accomplished using innovative high throughput approaches exploiting 3D DIC and Metal Jet based X-ray measurement of local stress-strain relations in samples containing multi-axial stress states. Classical constitutive modelling or recurrent neural network concepts lead to data sets enable implementation of topology optimization for multi-material design of high temperature rotating structures with oxidation and creep strain as design constraints. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Titanium, Powder Materials, Mechanical Properties |