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Applied Sciences
Volume 15
Issue 18
10.3390/app15189886
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This is an early access version, the complete PDF, HTML, and XML versions will be available soon.
Article

Influence of Pre-Strain and Notching on the Fatigue Life of DD11 Low-Carbon Steel

by
Ivan Tomasi
1,†,
Luigi Solazzi
1,*,†,
Candida Petrogalli
1,†,
Alberto Mazzoni
2,† and
Giorgio Donzella
1,†
1
DIMI Department, University of Brescia, Via Branze 38, 25123 Brescia, Italy
2
Moveero R&D Centre Europe, Via Molino Emili 18, 25030 Maclodio, Brescia, Italy
*
Author to whom correspondence should be addressed.
†
These authors contributed equally to this work.
Appl. Sci. 2025, 15(18), 9886; https://doi.org/10.3390/app15189886 (registering DOI)
Submission received: 18 July 2025 / Revised: 2 September 2025 / Accepted: 8 September 2025 / Published: 9 September 2025
(This article belongs to the Special Issue Fatigue Damage Behavior and Mechanisms: Latest Advances and Prospects)
Versions Notes

Abstract

Structural applications commonly adopt low-carbon steels, with the fatigue concept being one of the primary causes of failure. In this research, the aim was to study the fatigue behaviour of DD11 low-carbon steel, considering also specific conditions, like the effect of pre-deformation and influence of stress intensity factor. After determining the geometry and performing static tests to extrapolate the mechanical properties of the material, the fatigue behaviour of the base material was analysed, following the actual standards. Then, two conditions, a pre-strain equal to 11% and a notch, simulated with a hole and without pre-deformation, were studied. The results showed an absence of influence on the fatigue limit for the material with a pre-strain effect, and regarding the notching tests conducted, there was a low sensitivity to fatigue of the material.
Keywords: fatigue; rolled steel; experimental tests; numerical analysis fatigue; rolled steel; experimental tests; numerical analysis

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MDPI and ACS Style

Tomasi, I.; Solazzi, L.; Petrogalli, C.; Mazzoni, A.; Donzella, G. Influence of Pre-Strain and Notching on the Fatigue Life of DD11 Low-Carbon Steel. Appl. Sci. 2025, 15, 9886. https://doi.org/10.3390/app15189886

AMA Style

Tomasi I, Solazzi L, Petrogalli C, Mazzoni A, Donzella G. Influence of Pre-Strain and Notching on the Fatigue Life of DD11 Low-Carbon Steel. Applied Sciences. 2025; 15(18):9886. https://doi.org/10.3390/app15189886

Chicago/Turabian Style

Tomasi, Ivan, Luigi Solazzi, Candida Petrogalli, Alberto Mazzoni, and Giorgio Donzella. 2025. "Influence of Pre-Strain and Notching on the Fatigue Life of DD11 Low-Carbon Steel" Applied Sciences 15, no. 18: 9886. https://doi.org/10.3390/app15189886

APA Style

Tomasi, I., Solazzi, L., Petrogalli, C., Mazzoni, A., & Donzella, G. (2025). Influence of Pre-Strain and Notching on the Fatigue Life of DD11 Low-Carbon Steel. Applied Sciences, 15(18), 9886. https://doi.org/10.3390/app15189886

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