About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Fatigue in Materials: Fundamentals, Multiscale Characterizations and Computational Modeling
|
| Presentation Title |
Cyclic Damage Accumulation and Propagation in Ti6Al4V: Impact of Manufacturing Methods |
| Author(s) |
Venkateshwaran Ravi Narayanan, Leila Ladani |
| On-Site Speaker (Planned) |
Venkateshwaran Ravi Narayanan |
| Abstract Scope |
Ti-6Al-4V is an alloy with wide ranging applications due to its high strength, durability, and good corrosion resistance. There are a lot of variabilities in the types of microstructures produced using different manufacturing techniques. As a result, fatigue and failure behavior of this material manufactured using different manufacturing techniques vary significantly. This study predicts and compares cyclic plastic behavior, damage accumulation and propagation in traditionally manufactured and additively manufactured Ti6Al4V. A combined hardening model is used to simulate the hysteresis loop in the low cycle fatigue realm. A continuum damage model-based approach is adapted, and a successive initiation method is used to accumulate damage and model crack initiation and propagation in materials experiencing cyclic mechanical load. The number of cycles for crack initiation and crack propagation are compared across different manufacturing methods including conventional and additive manufacturing techniques. The number of cycles to failure is provided for these manufacturing methods. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Titanium, Modeling and Simulation |