Fatigue & Fracture of Engineering Materials & Structures最新文献

Calculation of Stress Intensity Factor in Human Teeth Using Fracture Mechanics 用断裂力学计算人牙的应力强度因子

IF 3.2 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-08-04 DOI: 10.1111/ffe.70048

Ahmed Al-Mukhtar, Carsten Koenke

引用次数: 0

Simulation and Experiment on Repair Welding Maintenance of Orthotropic Steel Deck Fatigue Failure 正交异性钢甲板疲劳破坏修补焊接维修模拟与试验

IF 3.2 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-08-04 DOI: 10.1111/ffe.70049

Ping Wang, Xiaosong Yu, Banglong Yu, Yong Liu, Xiaoguo Song, Hongliang Qian, Ke Dong

{"title":"Simulation and Experiment on Repair Welding Maintenance of Orthotropic Steel Deck Fatigue Failure","authors":"Ping Wang, Xiaosong Yu, Banglong Yu, Yong Liu, Xiaoguo Song, Hongliang Qian, Ke Dong","doi":"10.1111/ffe.70049","DOIUrl":"https://doi.org/10.1111/ffe.70049","url":null,"abstract":"<div>\u0000 \u0000 <p>Based on the engineering background of the Hong Kong-Zhuhai-Macao Bridge (HZM Bridge), the fatigue characteristics and operation and maintenance strategies of orthotropic steel decks (OSD) were systematically studied through finite element simulation and high-cycle fatigue (HCF) tests. A finite element model of the OSD segment is established to analyze the influence of unfavorable loading positions of longitudinal and transverse wheel loads on the stress distribution of U-rib-to-deck weld (<i>U</i><sub><i>d</i></sub>), U-rib butt weld (<i>U</i><sub><i>b</i></sub>), and U-rib-to-diaphragm weld (<i>U</i><sub><i>rd</i></sub>) and determine the fatigue dangerous position of welds. The critical crack size of welded components is predicted based on the Failure Assessment Diagram (FAD) method. The HCF testing showed that the fatigue life was reduced by 60% and 30% after toe and deck repair, respectively. Combined with the Paris' law and the damage equivalent coefficient method, the maintenance intervals for toe and deck repairs are 3 and 5.4 years, respectively.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 10","pages":"4472-4485"},"PeriodicalIF":3.2,"publicationDate":"2025-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145012276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Research on Creep–Fatigue Interaction and Constitutive Model of Micro Sampling of Superalloy Blades 高温合金叶片微试样蠕变-疲劳相互作用及本构模型研究

IF 3.2 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-07-31 DOI: 10.1111/ffe.70027

Xuguang Zheng, Xiangqian Xu, Zhixun Wen, Zhufeng Yue

{"title":"Research on Creep–Fatigue Interaction and Constitutive Model of Micro Sampling of Superalloy Blades","authors":"Xuguang Zheng, Xiangqian Xu, Zhixun Wen, Zhufeng Yue","doi":"10.1111/ffe.70027","DOIUrl":"https://doi.org/10.1111/ffe.70027","url":null,"abstract":"<div>\u0000 \u0000 <p>Due to the complexity and harshness of the operating environment of gas turbines, the turbine blade (the key component) faces various challenges, including high temperature, high rotational speed, and corrosive environments, which are exacerbated by stress concentrations induced at geometrical discontinuities in the blade body. In this paper, the performance of in situ sampling (notched small specimen) of nickel-based high-temperature alloy MAR-XXX blades under conditions of creep–fatigue interaction was investigated. Two types of notched small specimens, which have the same stress concentration factor but feature different geometric structures, were designed. The effects of geometry on the number of fatigue cycles (NC) of the notched specimens were evaluated through high-temperature creep–fatigue interaction tests. NC and failure mechanisms of the two types of notched specimens are clarified. A coupled damage viscoplastic constitutive model is used to simulate the test results. The simulation results align with the cracking locations observed in the tests, and the proposed cumulative damage value accurately reflects the relationship in NC between the two types of notched specimens.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 10","pages":"4458-4471"},"PeriodicalIF":3.2,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145013216","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Novel Energy-Life Theory-Based Approach to Predict Low-Cycle Fatigue Life of Q345B Under Symmetrical Cyclic Loading 基于能量寿命理论的Q345B对称循环载荷低周疲劳寿命预测新方法

IF 3.2 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-07-29 DOI: 10.1111/ffe.70031

Hao Chen, Junzhou Huo, Qiang Gao, Bowen Yang, Kaixuan Han

引用次数: 0

Mixed-Mode Fracturing Characteristics of Asphalt Concrete at Low-Temperature Considering Random Spatial Combinations of Aggregates and Voids 考虑集料与空隙随机空间组合的沥青混凝土低温混合模式断裂特性

IF 3.2 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-07-28 DOI: 10.1111/ffe.70044

Mengzhang Chen, Yongjun Wang, Zedong Zhao, Min Li, Hongbo Zhao, Yingjun Jiang, Jiaolong Ren

{"title":"Mixed-Mode Fracturing Characteristics of Asphalt Concrete at Low-Temperature Considering Random Spatial Combinations of Aggregates and Voids","authors":"Mengzhang Chen, Yongjun Wang, Zedong Zhao, Min Li, Hongbo Zhao, Yingjun Jiang, Jiaolong Ren","doi":"10.1111/ffe.70044","DOIUrl":"https://doi.org/10.1111/ffe.70044","url":null,"abstract":"<div>\u0000 \u0000 <p>Understanding low-temperature cracking is crucial for ensuring the durability of asphalt pavements. Historical investigations have focused on how individual mesostructures influence the low-temperature fracturing characteristics of asphalt concrete. However, the properties of mesostructures extend beyond their geometric features to encompass the variations in spatial configurations among different mesostructures. Clearly, under identical material conditions, the random arrangement of the mesostructure distribution in asphalt concrete significantly affects its resistance to cracking. Therefore, it is crucial to examine the impact of the stochastic distribution of aggregates and voids on the low-temperature fracture characteristics and crack growth in asphalt concrete across various fracture modes. To investigate this, semicircular bending (SCB) tests and discrete element method (DEM) simulations were conducted to analyze the effects of low-temperature fracture toughness and crack distribution in asphalt concrete. The influences of temperature and fracture modes were also examined.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 10","pages":"4409-4428"},"PeriodicalIF":3.2,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145013096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of Misfit Strain on Substructural Evolution During Fatigue Deformation of a Ni-Based Superalloy 错配应变对ni基高温合金疲劳变形过程中亚结构演变的影响

IF 3.2 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-07-28 DOI: 10.1111/ffe.70047

Rajesh Kumar Rai

引用次数: 0

The Effect of Ultrasonic Surface Rolling Process on Corrosion Fatigue Performance of 2Cr13 Steel 超声表面轧制工艺对2Cr13钢腐蚀疲劳性能的影响

IF 3.2 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-07-28 DOI: 10.1111/ffe.70032

Jun Cheng, Leyang Dai, Zhilong Xu, Yi Li, Shiqi Chen, Qingshan Jiang, Xuming Zha, Bo Li

{"title":"The Effect of Ultrasonic Surface Rolling Process on Corrosion Fatigue Performance of 2Cr13 Steel","authors":"Jun Cheng, Leyang Dai, Zhilong Xu, Yi Li, Shiqi Chen, Qingshan Jiang, Xuming Zha, Bo Li","doi":"10.1111/ffe.70032","DOIUrl":"https://doi.org/10.1111/ffe.70032","url":null,"abstract":"<div>\u0000 \u0000 <p>The surface layer modification of 2cr13 steel samples was carried out by ultrasonic surface rolling process (USRP) in this work. The surface integrity of the sample and its effect on corrosion fatigue properties were analyzed. The results indicated that a compressive residual stress (CRS) field and hardness gradient field were formed on the surface of the sample after USRP, and the roughness of the modified surface layer with refined microstructure was reduced to different degrees. The corrosion fatigue life of all ultrasonic rolled samples had been improved to some extent, among which the life of S2 sample with the optimum surface integrity was about 40 times higher than that of non-rolled sample. High CRS and ultra-fine grain microstructure in the surface layer significantly inhibited the occurrence of pitting and the initiation of corrosion fatigue cracks on the surface, which were the determining factors for improving the corrosion fatigue life of 2Cr13 stainless steel.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 10","pages":"4429-4443"},"PeriodicalIF":3.2,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145013100","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Vibration Fatigue Test Acceleration Factor Under Broadband Random Excitation: Analytical Modeling and Experimental Validation 宽带随机激励下振动疲劳试验加速度系数：分析建模与实验验证

IF 3.2 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-07-25 DOI: 10.1111/ffe.70040

Jiachen Sun, Yi Liu, Piao Li, Weixing Yao

{"title":"Vibration Fatigue Test Acceleration Factor Under Broadband Random Excitation: Analytical Modeling and Experimental Validation","authors":"Jiachen Sun, Yi Liu, Piao Li, Weixing Yao","doi":"10.1111/ffe.70040","DOIUrl":"https://doi.org/10.1111/ffe.70040","url":null,"abstract":"<div>\u0000 \u0000 <p>The vibration fatigue tests of engineering structures performed under real loading conditions are time-consuming and expensive. In order to reduce the vibration fatigue test time, a novel analytical random vibration fatigue acceleration model under broadband excitation is proposed in this paper. The multi-peak response stress spectrum is divided into several single-peak spectra with only one peak in each segment. The Rayleigh model is used to fit the stress amplitude probability distribution. The concept of scale factor is introduced and the scale factor of each divided single-peak stress spectrum is calculated according to the probability density function. The acceleration factor is obtained based on the scale factor. The random vibration fatigue tests of 2024-T3 and 7075-T6 aluminum-alloy specimens with elliptical and slot holes were performed and the vibration fatigue lives were obtained under different load spectra. It is demonstrated that the results calculated by the presented model are in sound agreement with the test results.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 10","pages":"4391-4408"},"PeriodicalIF":3.2,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145013311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Physics-Embedded Machine Learning for Fatigue Cumulative Damage Prediction 物理嵌入式机器学习疲劳累积损伤预测

IF 3.2 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-07-24 DOI: 10.1111/ffe.70036

Zhiyuan Gao, Xiaomo Jiang, Yifan Guo, Mingqing Cui, Shengbo Wang

{"title":"Physics-Embedded Machine Learning for Fatigue Cumulative Damage Prediction","authors":"Zhiyuan Gao, Xiaomo Jiang, Yifan Guo, Mingqing Cui, Shengbo Wang","doi":"10.1111/ffe.70036","DOIUrl":"https://doi.org/10.1111/ffe.70036","url":null,"abstract":"<div>\u0000 \u0000 <p>Fatigue damage accumulation is critical to the safety and reliability of mechanical structures, yet accurate prediction remains challenging, especially under small-sample conditions. This study proposes an innovative physics-embedded machine learning (ML) framework to enhance residual fatigue damage prediction by integrating the Manson–Halford (MH) physical model with data-driven algorithms. The framework employs a dual-regressor approach: One regressor embeds the MH model to predict the interaction coefficient, while the other is purely data driven to directly predict residual fatigue damage, with a customized loss function enforcing physical consistency between the two outputs. A compiled dataset of 14 materials demonstrates the framework's superiority over six baseline ML models. Notably, the model retains high accuracy even with 30% fewer training data, showcasing its robustness in data-scarce scenarios. By harmonizing physical mechanisms with ML, this work provides a generalizable and efficient strategy for fatigue damage prediction.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 10","pages":"4352-4374"},"PeriodicalIF":3.2,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145013263","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Defect Healing Mechanism in Fe-Cr-Ni Single Crystal Alloy Under Multiaxial Cyclic Loading: A Molecular Dynamics Simulation-Based Study Fe-Cr-Ni单晶合金在多轴循环载荷下的缺陷愈合机制：基于分子动力学模拟的研究

IF 3.2 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-07-24 DOI: 10.1111/ffe.70042

Arun Kumar, Ashok Kumar, Sunil Kumar

{"title":"Defect Healing Mechanism in Fe-Cr-Ni Single Crystal Alloy Under Multiaxial Cyclic Loading: A Molecular Dynamics Simulation-Based Study","authors":"Arun Kumar, Ashok Kumar, Sunil Kumar","doi":"10.1111/ffe.70042","DOIUrl":"https://doi.org/10.1111/ffe.70042","url":null,"abstract":"<div>\u0000 \u0000 <p>This study uses molecular dynamics (MD) simulations to investigate the defect healing mechanisms in Fe-Cr-Ni single crystal alloys under multiaxial cyclic loading. Focusing on enhancing the mechanical strength of these alloys for aerospace, automotive, nuclear, and marine applications, the research examines atomic-scale healing of preexisting defects. Triaxial cyclic loading simulations at 300 K reveal that defect healing primarily occurs through dislocation cross-slip, climb, atomic diffusion, and crystalline structure recovery. The closure of voids is facilitated by dislocation tangle formation, stacking fault evolution, and extrinsic-to-intrinsic stacking fault transitions. Complete void healing is achieved by the 15th cycle in triaxial loading, 19th in biaxial, and 27th in uniaxial loading. Phase transformation analysis confirms the dominance of the FCC phase, with localized HCP formations aiding structural recovery. These findings provide critical insights into the atomic-scale defect healing mechanism, offering strategies to enhance fatigue resistance, structural integrity, and long-term performance of Fe-Cr-Ni alloys under cyclic loading.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 10","pages":"4375-4390"},"PeriodicalIF":3.2,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145013249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0