| About this Abstract |
| Meeting |
13th International Conference on the Technology of Plasticity (ICTP 2021)
|
| Symposium
|
13th International Conference on the Technology of Plasticity (ICTP 2021)
|
| Presentation Title |
Complementary Methods for Assessment of Residual Stress Fields Induced by Rotary Swaging of Steel Bars |
| Author(s) |
Dhia Charni, Svetlana Ishkina, Jeremy Epp, Marius Herrmann, Christian Schenck, Bernd Kuhfuss |
| On-Site Speaker (Planned) |
Dhia Charni |
| Abstract Scope |
The process investigated in this paper consists of cold rotary swaging of steel bars. In recent work, surface residual stresses were found to be sensitive to process parameters and their fluctuations, leading to variations of residual stresses at different length scales. To properly evaluate the residual stress states in rotary swaged bars, several complementary measurement techniques were applied. Complementary to surface X-ray diffraction measurements, the applicability of micromagnetic methods was evaluated for fast mapping of local residual stress distribution at the surface with a spatial resolution down to 20 µm. Additionally, an evaluation of the full residual stress profile over the cross section was achieved by neutron diffraction. The combination of the different methods thus allowed a complete characterization of the generated residual stresses at different length scales. Furthermore, a 3D FE-model was developed and process simulation using Chaboche material model was carried out to investigate the residual stress generation and compare the results with the experimental data. The results show an overall good agreement of the experimental data with the simulation results. |
| Proceedings Inclusion? |
Definite: At-meeting proceedings |