| About this Abstract |
| Meeting |
Additive Manufacturing Benchmarks 2022 (AM-Bench 2022)
|
| Symposium
|
Additive Manufacturing Benchmarks 2022 (AM-Bench 2022)
|
| Presentation Title |
Residual Stress Measurements in the IN718 AM-Bench Component
and a Novel Approach for Determining Three Orthogonal Components of Residual Stress by Coupling the Contour and Energy Dispersive Diffraction Techniques
|
| Author(s) |
Christopher D'Elia, Nicholas Bachus, Lyle E. Levine, Michael Hill |
| On-Site Speaker (Planned) |
Christopher D'Elia |
| Abstract Scope |
Providing experimental residual stress fields within additive manufactured components is
required for model validation efforts. The as-built residual stress state in the IN718 AM-Bench
build is assessed. Residual stresses are determined via the contour method and energy dispersive
X-ray diffraction. The contour method provides component scale variations of longitudinal,
build, and transverse direction stresses on four planes of interest. Unlike the prior AM-Bench
builds, the IN718 build features a hollow leg. To determine its influence on the resulting residual
stress field, the contour method is used to evaluate the build direction stress above the hollow leg
and a neighboring solid leg. Additionally, to overcome X-ray measurement difficulties
associated with the third orthogonal strain a novel approach to determining three orthogonal
stress components is derived. Transverse contour stress data is combined with the longitudinal
and build X-ray diffraction strain data to compute stresses in all three directions. |
| Proceedings Inclusion? |
Undecided |