| About this Abstract |
| Meeting |
Additive Manufacturing Benchmarks 2022 (AM-Bench 2022)
|
| Symposium
|
Additive Manufacturing Benchmarks 2022 (AM-Bench 2022)
|
| Presentation Title |
AM Bench 2022 Subcontinuum Mesoscale Tensile Challenge , Part 1: Measurement Description |
| Author(s) |
Jake T. Benzing, Li-Anne Liew, Newell Moser, Orion Kafka, Nicholas Derimow, Jordan Weaver, Ross Rentz, Nik Hrabe |
| On-Site Speaker (Planned) |
Jake T. Benzing |
| Abstract Scope |
This additive manufacturing benchmarking challenge (CHAL-AMB2022-04-MeTT) asks the modelling community to predict the fracture location/pathway and stress-strain behavior of individual meso-scale (gauge dimensions of 200 um thickness, 200 um width, 1 mm length) tension specimens that were excised from wafers of IN625 manufactured by laser powder bed fusion (L-PBF). The uniaxial tension tests are pin loaded, conducted at quasi-static strain rates under displacement control, and strain is measured via non-contact methods (digital image correlation). The predictions are challenging since the number of grains contained in the thickness of the specimen are sub-continuum. In addition, the porosity is heterogeneously distributed by the L-PBF process, as opposed to intentionally seeded defects. The challenge provides information on chemical composition, grain and sub-grain structure (surface-based measurements via electron backscatter diffraction and scanning electron microscopy) and pore structure (volume-based measurements via X-Ray computed tomography) along the entire gauge length for each tension specimen. |
| Proceedings Inclusion? |
Undecided |