Barkhausen noise analysis for inline monitoring of residual stresses using a soft sensor for freeform bending with moveable die
Sophie Charlotte Stebner, Linghao Kong, Viktor Böhm, Ahmed Ismail, Boris Lohmann, Wolfram Volk, Sebastian Münstermann
Abstract. Axial residual stresses, critical to component performance and further processing, are often neglected in the freeform bending process with moveable die. Barkhausen noise analysis offers a non-destructive method for evaluating residual stresses, but signal intensity alone is insufficient due to superimposition of microstructural effects from plastic deformation. This study investigates the relationship between Barkhausen noise measurements and axial residual stresses obtained via X-ray diffraction, using Pearson correlation. Results show that signal symmetry strongly relates to residual stresses. Considering both signal intensity and symmetry poses a promising approach for a quantitative assessment of axial residual stresses during bending.
Keywords
Freeform Bending, Residual Stresses, Barkhausen Noise, Soft Sensor, Smart Monitoring
Published online 5/7/2025, 8 pages
Copyright © 2025 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Sophie Charlotte Stebner, Linghao Kong, Viktor Böhm, Ahmed Ismail, Boris Lohmann, Wolfram Volk, Sebastian Münstermann, Barkhausen noise analysis for inline monitoring of residual stresses using a soft sensor for freeform bending with moveable die, Materials Research Proceedings, Vol. 54, pp 2012-2019, 2025
DOI: https://doi.org/10.21741/9781644903599-216
The article was published as article 216 of the book Material Forming
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
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