About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
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Symposium
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Mechanical Response of Materials Investigated Through Novel In-Situ Experiments and Modeling
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Presentation Title |
In-situ Digital Image Correlation Study to Reveal Cyclic Plastic Strain Localizations in Stainless Steel 316L |
Author(s) |
Elif Cansu Kursun, Koenraad G.F. Janssens, Philippe Spätig |
On-Site Speaker (Planned) |
Elif Cansu Kursun |
Abstract Scope |
Fatigue damage of polycrystalline metallic alloys involves localized plastic strains at a microstructural scale. To develop a mechanistic understanding of the damage accumulation, the evolution of micro-scale strain fields under cyclic loading needs to be characterized. Digital Image Correlation (DIC) can be used for quantitative analysis of local strain distributions at various length scales. When a suitable patterning technique allowing sufficient spatial resolution is chosen, DIC analysis can reveal sub-grain size deformation characteristics. In this work, in-situ DIC is used to characterize cyclic plastic behavior of a stainless steel 316L. A three dimensional-DIC approach is used for accurate quantification of micro-scale strain fields in in-situ testing conditions. The strain localizations within the grains under cyclic loading are linked with microstructural features of 316L investigated using Electron Backscattering Diffraction. The strain fields emerging in individual grains are analyzed as a function of the number of cycles. |
Proceedings Inclusion? |
Planned: |
Keywords |
Mechanical Properties, Other, Other |