Fatigue Assessment of Metals

A special issue of Metals (ISSN 2075-4701). This special issue belongs to the section "Metal Failure Analysis".

Deadline for manuscript submissions: 31 October 2024 | Viewed by 1170

Special Issue Editor


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Guest Editor
Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China
Interests: fatigue assessment; failure analysis; damage mechanics; fatigue modeling

Special Issue Information

Dear Colleagues,

You are invited to contribute to this upcoming Special Issue of Metals, entitled “Fatigue Assessment of Metals”. This issue will compile articles on theoretical and experimental research progress into metal crack initiation, crack propagation, and life estimation, with potential topics ranging from damage mechanism to life evaluation of metal materials and structures.

Fatigue damage is a typical form of metal component damage, and the fatigue damage of structural components often brings disastrous consequences. Preventing the accidental failure of structural components is one of the design objectives of any engineering structure. Based on fatigue tests and the simulation of metal components, the theory and method of fatigue damage assessments of metal materials or components are proposed. These methods promise to provides a bases for structural safety, as well as for the design, material selection, and process selection of metal components, so as to further improve the fatigue resistance of structures and delay or avoid fatigue failure. This work requires the participation of multidisciplinary expertise, including material science, structural analysis, detection technology, structural design, manufacturing technology, computer technology, quality assessment, physics, reliability, etc. In order to solve the complex engineering fatigue problem, it is necessary to involve both micro- and macro-scale theory and experimental methods.

A diverse variety of topics may be addressed under the umbrella of the fatigue assessment of metal materials and structures, including:

(1) Residual strength or life, including the influence of multi-site fatigue damage;

(2) Crack propagation, including the influence of multiple cracks or fatigue damage of multiple parts;

(3) Damage assessment using different fatigue damage detection;

(4) Life prediction includes crack initiation and crack propagation;

(5) Uniaxial and multiaxial fatigue damage assessments of different metal materials and structures;

and various related topics.

We look forward to your contributions to this Special Issue.

Prof. Dr. Guoqin Sun
Guest Editor

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 100 words) can be sent to the Editorial Office for announcement on this website.

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. Metals is an international peer-reviewed open access monthly 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 2600 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 assement
  • strength assessment
  • life prediction
  • crack initiation
  • crack propagation
  • fatigue damage evaluation
  • fatigue modeling
  • fatigue damage mechanism
  • damage detection
  • fatigue failure

Published Papers (1 paper)

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Research

11 pages, 12566 KiB  
Article
Influence of Loading Waveform on the Fatigue Life of 34CrNi3MoVA Steel
by Xiaoyan Guan, Jie Tang and Jianzhi Chen
Metals 2024, 14(1), 110; https://doi.org/10.3390/met14010110 - 16 Jan 2024
Viewed by 819
Abstract
Mechanical components often experience fatigue loading from various waveform conditions during their operational lifespan. However, the underlying mechanisms through which variations in loading waveform affect the fatigue life of components remain unclear. Thus, this study conducted tension–compression fatigue experiments on 34CrNi3MoVA steel specimens [...] Read more.
Mechanical components often experience fatigue loading from various waveform conditions during their operational lifespan. However, the underlying mechanisms through which variations in loading waveform affect the fatigue life of components remain unclear. Thus, this study conducted tension–compression fatigue experiments on 34CrNi3MoVA steel specimens under the same stress amplitude with different waveforms (cosine, triangular, sawtooth, and reverse sawtooth) to investigate the effects of loading waveform variations on the cyclic strain hardening behaviors, the fatigue fracture failure, and the fatigue life. The results indicated that specimens under different waveforms all exhibited cyclic strain hardening. The fatigue cyclic hardening level progressively increased in the order of cosine, triangular, and sawtooth waveforms, resulting in a continuous increase in cyclic saturation strain amplitude. The analysis of fatigue fractures demonstrated a consistent increase in both the initiation and propagation zone areas in the order of cosine, triangular, and sawtooth waveforms, and the boundary between the propagation and final fracture zones gradually shifted from a straight to a curved shape. The influence mechanisms of cyclic loading waveforms on the fatigue life of specimens were analyzed based on the energy dissipation, leading to the development of a universal fatigue life prediction model applicable to different waveform conditions, the model was then verified with the reverse sawtooth wave specimens and resulted in a prediction error less than 15%. The study is expected to serve as a significant guide for predicting and evaluating the fatigue life of mechanical components under various fatigue loading conditions. Full article
(This article belongs to the Special Issue Fatigue Assessment of Metals)
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Planned Papers

The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.

Title: Comparative fatigue analysis of structural steels considering environmental and welding effects
Authors: Yevgen Gorash; Tugrul Comlekci; James Kelly; Lewis Milne
Affiliation: Weir Advanced Research Centre, University of Strathclyde

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