Fatigue and Fracture of Advanced Metallic Materials

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

Deadline for manuscript submissions: 15 November 2026 | Viewed by 403

Special Issue Editor


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Guest Editor
School of Chemical Engineering and Technology, Xi’an Jiaotong University, Xi’an 710049, China
Interests: acoustic emission; machine learning; fatigue; crack growth; fracture; mechanical properties

Special Issue Information

Dear Colleagues, 

Fatigue and fracture remain among the most critical failure modes affecting the reliability and service life of metallic structural components. A comprehensive understanding of the entire damage evolution process—from small fatigue crack initiation and growth to macroscopic crack propagation and final unstable fracture—is essential for accurate fatigue life prediction and damage tolerance assessment. This necessitates systematic investigation into the fatigue and fracture behaviors of metallic materials, as well as the underlying deformation and damage mechanisms.

Recent advancements in characterization techniques and in situ monitoring methods have significantly enhanced our ability to probe material degradation and visualize damage progression under cyclic loading. High-resolution electron microscopy, digital image correlation, and acoustic emission, among others, now enable real-time tracking of fatigue damage with unprecedented sensitivity and temporal resolution. Furthermore, the integration of multi-scale experimental observations with physically based models is opening new avenues for understanding the complex interplay between microstructure, loading conditions, and damage evolution.

This Special Issue, “Fatigue and Fracture of Advanced Metallic Materials”, aims to showcase cutting-edge research on the mechanical behavior, damage mechanisms, and advanced characterization of metallic materials under monotonic and cyclic loading. We invite contributions covering topics including, but not limited to, low- and high-cycle fatigue, fatigue crack initiation and propagation, small fatigue cracks, tensile and fracture behavior, microstructural effects on damage evolution, and emerging in situ characterization techniques. Both original research articles and comprehensive reviews are welcome, with the goal of advancing the fundamental understanding and engineering practice in the fatigue and fracture of metallic materials.

Dr. Mengyu Chai
Guest Editor

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Keywords

  • fatigue
  • fracture
  • crack growth
  • metals
  • small fatigue cracks
  • microstructure
  • material characterization
  • online monitoring
  • life prediction

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Published Papers (1 paper)

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Research

16 pages, 2834 KB  
Article
A Fatigue Life Prediction Model of Aluminum Alloy Considering Crack Initiation
by Kaiyu Cheng, Shihao Ma, Yuanyuan Fang, Wei Guo, Xia Xu, Guoqiang Chang and Henggao Xiang
Metals 2026, 16(5), 530; https://doi.org/10.3390/met16050530 - 13 May 2026
Viewed by 170
Abstract
In high-cycle fatigue, the majority of fatigue life is spent in the crack initiation stage. However, current models fail to accurately capture the fatigue life consumed in the crack initiation stage, resulting in discrepancies in predictions. Here, we propose a fatigue life prediction [...] Read more.
In high-cycle fatigue, the majority of fatigue life is spent in the crack initiation stage. However, current models fail to accurately capture the fatigue life consumed in the crack initiation stage, resulting in discrepancies in predictions. Here, we propose a fatigue life prediction model based on the crack tip plastic zone, combined with a multi-stage crack growth approach. To quantify the crack initiation life, a modified Tanaka–Mura model is developed by incorporating the effects of localized plastic deformation at the crack tip. The proposed model demonstrates good agreement with experimental observations. Furthermore, a reliability-based fatigue evaluation framework is established by introducing a fatigue safety factor formulation. The results show that the safety factor decreases with increasing applied stress levels, attributed to the reduced standard deviation and lower scatter of fatigue life at higher stresses. The findings provide a practical and physics-informed methodology for fatigue life and safety assessment of aluminum alloy components under complex cyclic loading conditions. Full article
(This article belongs to the Special Issue Fatigue and Fracture of Advanced Metallic Materials)
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