| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Material Behavior Characterization via Multi-Directional Deformation of Sheet Metal
|
| Presentation Title |
Large-strain Cruciform Testing for Characterization of Macro- and Micro-scale Formability of Sheet Metals |
| Author(s) |
Baran Guler, Orhan Berk Aytuna, Mert Efe |
| On-Site Speaker (Planned) |
Mert Efe |
| Abstract Scope |
In-plane biaxial test (cruciform) has the ability to characterize the forming behavior of sheets under multiple strain paths without any friction effects. The common drawback of this test is the premature fracture of the samples. We have recently developed a custom-designed cruciform test apparatus and a miniature sample to overcome the small strain problem. The unique sample design prevents local necking and allows sample materials to deform until their true fracture strains without deviating from the pre-set strain path. In this work, we characterize both the macro- and micro-scale deformation behavior of various materials including DC04 steel, 5754 and 6061 aluminum, and AZ31 magnesium under various strain paths. Flow curves, forming, and fracture limits will be given as examples to the macromechanical behavior. Strain maps at the microstructure scale will be provided to compare and contrast the unique micromechanical behavior and the global formability of each sample material. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |