About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
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Symposium
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Additive Manufacturing Fatigue and Fracture: Effects of Surface Roughness, Residual Stress, and Environment
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Presentation Title |
Rapid Qualification of Additively Manufactured Fatigue-Limited Applications via Hybrid Experimental/Model Approach |
Author(s) |
Amber Andreaco, Krzysztof Stopka, Andrew Desrosiers, Tyler Nicodemus, Nicholas Krutz, Michael Sangid |
On-Site Speaker (Planned) |
Amber Andreaco |
Abstract Scope |
Many industries are looking to qualify additively manufactured (AM) metallic materials for fatigue-limited applications. While the underlying sources of fatigue failure can be attributed to various factors, the existence of unintentional porosity is well-established as a leading cause for premature failures, including in AM materials. Historically, substantial experimental testing campaigns are required to characterize the fatigue behavior. The concern arises as to whether the fatigue design allowable encompasses both intentional variation and unintentional variation (e.g., undetectable, off-nominal porosity) to enable safe designs. This talk will summarize the concept of seeding defects, characterizing their morphology and distribution, as well as determining their impact on fatigue behavior, as the basis for model inputs to predict fatigue life. The work is intended to drive a standard practice for rapid qualification of fatigue-limited AM applications via a hybrid experimental/model approach. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Computational Materials Science & Engineering, |