| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing Fatigue and Fracture: Towards Rapid Qualification
|
| Presentation Title |
Critical Initial Crack Size for AM Components: Calculations, Implications, and Applications |
| Author(s) |
James Sobotka, Michael P Enright, Robert Craig McClung |
| On-Site Speaker (Planned) |
James Sobotka |
| Abstract Scope |
Damage tolerance (DT) assessments predict the life of a part under cyclic loadings from an assumed initial crack size, and one of the perennial problems of the DT philosophy is determining the appropriate initial crack size. One approach selects the largest crack size that could be reasonably missed by non-destructive evaluation (NDE). Practical considerations require that NDE focuses on critical regions that readily fracture, best determined by a DT assessment. Critical initial crack size (CICS) calculations break this impasse. CICS provides the crack size that will fracture a part at the service life. The CICS approach may be extremely beneficial for additive manufactured (AM) parts of higher criticality that have limited NDE options in some locations. This presentation discusses practical methods to compute CICS, implications for DT analysts and NDE practitioners, and applications using the DT software DARWIN. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Modeling and Simulation, |