| About this Abstract |
| Meeting |
Additive Manufacturing Benchmarks 2022 (AM-Bench 2022)
|
| Symposium
|
Additive Manufacturing Benchmarks 2022 (AM-Bench 2022)
|
| Presentation Title |
Combining Fractal and Topological Analyses to Quantify Fracture Surfaces in Additively Manufactured Ti-6Al-4V |
| Author(s) |
Ian J. Wietecha-Reiman, Albert Segall, Xiaoliang Zhao, Todd A. Palmer |
| On-Site Speaker (Planned) |
Todd A. Palmer |
| Abstract Scope |
The quantitative analysis of fracture surfaces has long been hindered by the lack of tools capable of quickly providing usable information on fracture modes and crack initiation locations. An easily implementable non-destructive image analysis-based tool utilizing a combination of fractal analysis and topological techniques has been developed. This tool can be used to analyze selected locations across a fracture surface by processing high resolution images and calculating both the fractal dimension to quantify feature complexity and the lacunarity for defining feature directionality. With the incorporation of topology measurements, the connectivity of fracture features can also be characterized, thus enhancing the fidelity of the quantitative analysis and the ability to differentiate fracture micro-mechanisms in a quantitative fashion. Validation was performed on complex multi-mode fracture surfaces in additively manufactured Ti-6Al-4V materials subjected to static and fatigue loading conditions. Fracture initiation sites at both sub-surface and internal defects were identified using this tool. |
| Proceedings Inclusion? |
Undecided |