Analysis of damage-dependent performance in deep-drawn metal components
Martina Müller, Lena Koch, Niklas Fehlemann, Marina Kemperle, Tim Herrig, David Bailly, Sebastian Münstermann, Thomas Bergs
Abstract. The presence of damage in the form of voids and lattice defects in sheet metal components is a critical factor that significantly affects their mechanical performance, especially in high stress scenarios such as fatigue loading or crash events. These voids and lattice defects disrupt the structural integrity of the material by introducing weak points that can act as stress concentrators, increasing the likelihood of crack initiation and propagation. Effective control of damage during the forming process is therefore of paramount importance. By closely monitoring and controlling the accumulation and distribution of voids and lattice defects, the microstructural properties of the metal can be influenced, resulting in improved strength, durability and overall performance of the final component. This paper focuses on the damage accumulation in sheet metal during deep drawing and its impact on the component performance. For this purpose, U-profiles made of dual phase steel DP800 were deep drawn with different process parameters. The components were then analyzed considering the induced damage in areas critical to performance by means of scanning electron microscopy. Void area fractions and the ratio of damage mechanisms to void area fraction were determined. Afterwards, the components were cut into notched tensile tests, subjected to tensile tests and the performance in terms of stress-strain-curves was analyzed.
Keywords
Damage, Deep Drawing, Dual Phase Steel
Published online 5/7/2025, 9 pages
Copyright © 2025 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Martina Müller, Lena Koch, Niklas Fehlemann, Marina Kemperle, Tim Herrig, David Bailly, Sebastian Münstermann, Thomas Bergs, Analysis of damage-dependent performance in deep-drawn metal components, Materials Research Proceedings, Vol. 54, pp 971-979, 2025
DOI: https://doi.org/10.21741/9781644903599-104
The article was published as article 104 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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