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Fatigue Damage Behavior and Mechanisms: Latest Advances and Prospects
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Fatigue Damage Behavior and Mechanisms: Latest Advances and Prospects

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Mechanical Engineering".

Deadline for manuscript submissions: closed (10 March 2026) | Viewed by 10399

Special Issue Editors

Dr. Robert Owsiński

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Guest Editor
Department of Mechanics and Machine Design, Faculty of Mechanical Engineering, Opole University of Technology, Mikołajczyka 5, 45-271 Opole, Poland
Interests: fatigue; simulation; FEM; modelling; stress and strain
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Adam Niesłony

E-Mail Website
Guest Editor
Department of Mechanics and Machine Design, Opole University of Technology, Prószkowska 76 Street, 45-758 Opole, Poland
Interests: material fatigue; fatigue testing; multiaxial fatigue; strength of materials; FEM
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

As we continue to explore the frontiers of mechanical engineering, the challenge of understanding and improving the fatigue behavior of structural materials remains paramount. This Special Issue is dedicated to the comprehensive study of fatigue issues in engineering materials, with a focus on their behavior under multi-axial and complex loading conditions. We seek to publish original research and review articles that advance our understanding of fatigue phenomena, predict the lifespan of materials under fatigue, and improve the methods of fatigue damage assessment.

We invite contributions regarding a range of topics including, but not limited to, the following:

  • Fatigue problems of structural materials;
  • Multi-axial fatigue of materials, and criteria for describing and predicting fatigue life;
  • Experimental studies of modern materials, including those produced by additive manufacturing, as well as welded joints, FSW joints, and others;
  • Numerical methods supporting experimental research in material fatigue;
  • Assessment of fatigue damage under simple and complex states of loads for cyclic and random loadings.

This Special Issue aims to gather insights from experimental, theoretical, and applied research that contribute to the development of more durable and reliable materials. Your expertise and research can help advance the field, enhancing the design and optimization of materials used across various engineering applications.

We look forward to your submissions.

Dr. Robert Owsiński
Dr. Nieslony Adam
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 250 words) can be sent to the Editorial Office for assessment.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Applied Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • fatigue behavior
  • FEM modelling
  • damage of materials
  • multi-axial fatigue
  • fatigue in AM materials

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Related Special Issue

Published Papers (5 papers)

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Research

21 pages, 5218 KB  
Article
Experimental Investigation of Rotating Bending Fatigue Life of Knuckle and Screw Threads in AISI 1045 Steel
by Muhammad Umer Farooq, Khawar Mushtaq, Shahid Mehmood and Kibum Kim
Appl. Sci. 2026, 16(4), 1781; https://doi.org/10.3390/app16041781 - 11 Feb 2026
Viewed by 381
Abstract
Threaded component fatigue failure is a severe issue in cyclically loaded mechanical systems, and the service life in these systems is controlled primarily by stress concentration at the thread root, especially in loading regimes dominated by bending. Rounded thread profiles such as knuckle [...] Read more.
Threaded component fatigue failure is a severe issue in cyclically loaded mechanical systems, and the service life in these systems is controlled primarily by stress concentration at the thread root, especially in loading regimes dominated by bending. Rounded thread profiles such as knuckle threads have been thought to improve fatigue performance, although this is mostly due to the assumption being made on the basis of axial loading, the numerical stress analysis, and/or isolated stress-concentration analyses. This paper presents an experimental study on the fatigue behavior of knuckle-thread and conventional screw-thread specimens manufactured from AISI 1045 steel under rotating bending loading to determine the effects of thread geometry on fatigue life and damage mechanisms. Fatigue testing was conducted at varying stress levels to develop comparative stress–life (S–N) curves, the analytical relation being used in determining the stress-concentration factor, and standard literature techniques have been used in the analysis of fracture-surface in order to investigate the behavior of crack initiation and propagation. Results indicate that knuckle threads exhibit a lower stress concentration factor (Kt ≈ 1.59) than screw threads (Kt ≈ 2.11), resulting in longer fatigue life at the same nominal stress level, particularly in the high-cycle life regime. Fractographic research also indicates that knuckle threads enhance delayed crack initiation and more evenly distributed circumferential crack propagation, but screw threads show highly localized crack initiation and rapid radial propagation of cracks, resulting in earlier unstable fracture. These findings provide new experimental evidence that the improved fatigue performance of knuckle threads during rotating bending is linked to fundamental change in fatigue damage mechanism rather than to stress alleviation alone, thereby offering quantitative supporting guidance in designing fatigue-sensitive threaded components to experience cyclic bending. Full article
(This article belongs to the Special Issue Fatigue Damage Behavior and Mechanisms: Latest Advances and Prospects)
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19 pages, 3663 KB  
Article
Influence of Pre-Strain and Notching on the Fatigue Life of DD11 Low-Carbon Steel
by Ivan Tomasi, Luigi Solazzi, Candida Petrogalli, Alberto Mazzoni and Giorgio Donzella
Appl. Sci. 2025, 15(18), 9886; https://doi.org/10.3390/app15189886 - 9 Sep 2025
Viewed by 978
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 [...] Read more.
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. Full article
(This article belongs to the Special Issue Fatigue Damage Behavior and Mechanisms: Latest Advances and Prospects)
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19 pages, 8473 KB  
Article
Complexity of Determining the Fatigue Strength of Real Structures Under Random Vibration Conditions—Two Case Studies
by Karol Czekaj, Bartosz Mazurek, Robert Owsiński and Adam Niesłony
Appl. Sci. 2024, 14(21), 10051; https://doi.org/10.3390/app142110051 - 4 Nov 2024
Cited by 3 | Viewed by 3158
Abstract
Fatigue failure remains a major concern in the design and performance evaluation of machine components and structures as it accounts for a significant proportion of mechanical failures. This article presents a fatigue evaluation methodology based on SN (stress-cycles to failure) curves to understand [...] Read more.
Fatigue failure remains a major concern in the design and performance evaluation of machine components and structures as it accounts for a significant proportion of mechanical failures. This article presents a fatigue evaluation methodology based on SN (stress-cycles to failure) curves to understand and predict the fatigue behaviour of complex components under various loading conditions with widely varying device geometry and dynamics. In order to accurately interpret and utilize the SN curves, the paper outlines key factors influencing material fatigue, including stress amplitude, mean stress, stress concentration, environmental effects, and surface finish. The integration of these factors into the SN curve-based assessment is discussed to tailor fatigue evaluations to specific machine components and structures. To demonstrate the practical application of SN curves in fatigue assessment, two case studies of machine components and structures are presented. The paper ends with a summary and conclusions, the most important of which is that the greatest impact on design fatigue life consists of accurately estimated stresses resulting from the load conditions and the dynamics of the structure. Full article
(This article belongs to the Special Issue Fatigue Damage Behavior and Mechanisms: Latest Advances and Prospects)
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12 pages, 3087 KB  
Article
Torsional Fatigue Performance of a Spot-Welded Structure: An XFEM Analysis
by Murat Demiral and Ertugrul Tolga Duran
Appl. Sci. 2024, 14(20), 9593; https://doi.org/10.3390/app14209593 - 21 Oct 2024
Cited by 2 | Viewed by 2007
Abstract
This study delves into the exploration of the fatigue performance of a structure that has been spot-welded and is being loaded with torsional fatigue. The extended finite element method (XFEM) was applied to simulate the intricate interaction of spot welds in response to [...] Read more.
This study delves into the exploration of the fatigue performance of a structure that has been spot-welded and is being loaded with torsional fatigue. The extended finite element method (XFEM) was applied to simulate the intricate interaction of spot welds in response to cyclic loading. The developed model was validated through experiments. The influences of different parameters, such as the number of spot welds used to join the adherends, the diameters of the spot welds, and the load ratio applied, on the fatigue performance of the box were investigated. The first two parameters studied had a significant influence on the extent of the fatigue failure-affected spot welds, where the crack propagation rate can be decreased by more than 700%. Full article
(This article belongs to the Special Issue Fatigue Damage Behavior and Mechanisms: Latest Advances and Prospects)
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33 pages, 8292 KB  
Article
Equivalent Fatigue Constitutive Model Based on Fatigue Damage Evolution of Concrete
by Huating Chen, Zhenyu Sun, Xianwei Zhang and Wenxue Zhang
Appl. Sci. 2024, 14(19), 8721; https://doi.org/10.3390/app14198721 - 27 Sep 2024
Cited by 4 | Viewed by 2739
Abstract
Concrete structures such as bridge decks and road pavements are subjected to repetitive loading and are susceptible to fatigue failure. A simplified stress–strain analysis method that can simulate concrete behavior with a sound physical basis, acceptable prediction precision, and reasonable computation cost is [...] Read more.
Concrete structures such as bridge decks and road pavements are subjected to repetitive loading and are susceptible to fatigue failure. A simplified stress–strain analysis method that can simulate concrete behavior with a sound physical basis, acceptable prediction precision, and reasonable computation cost is urgently needed to address the critical issue of high-cycle fatigue in structural engineering. An equivalent fatigue constitutive model at discrete loading cycles incorporated into the concrete damaged plasticity model (CDPM) in Abaqus is proposed based on fatigue damage evolution. A damage variable is constructed from maximum fatigue strains, and fatigue damage evolution is described by a general equation whose parameters’ physical meaning and value range are identified. With the descending branch of the monotonic stress–strain curve as the envelope of fatigue residual strength and fatigue damage evolution equation as shape function, fatigue residual strength, residual stiffness, and residual strain are calculated. The equivalent fatigue constitutive model is validated through comparison with experimental data, where satisfactory simulation results were obtained for axial compression and flexural tension fatigue. The model’s novelty lies in integrating the fatigue damage evolution equation with CDPM, explicitly explaining performance degradation caused by fatigue damage. The proposed model could accommodate various forms of concrete constitution and fatigue stress states and has a broad application prospect for fatigue analysis of concrete structures. Full article
(This article belongs to the Special Issue Fatigue Damage Behavior and Mechanisms: Latest Advances and Prospects)
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