Fatigue & Fracture of Engineering Materials & Structures最新文献_第2页

An Integrated Experimental and Simulation Study on Residual Stress and Fatigue Life of TC4 Alloy Subjected to Cold Expansion and Reaming TC4合金冷胀扩孔残余应力及疲劳寿命的实验与模拟研究

IF 3.2 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2026-04-06 Epub Date: 2026-02-12 DOI: 10.1111/ffe.70217

Quansheng Hu, Guangping Zou, Zixin Zhuang, Jiajun Wang, Qichao Xue

{"title":"An Integrated Experimental and Simulation Study on Residual Stress and Fatigue Life of TC4 Alloy Subjected to Cold Expansion and Reaming","authors":"Quansheng Hu, Guangping Zou, Zixin Zhuang, Jiajun Wang, Qichao Xue","doi":"10.1111/ffe.70217","DOIUrl":"https://doi.org/10.1111/ffe.70217","url":null,"abstract":"<div>\u0000 \u0000 Titanium alloys, notably TC4 (Ti-6Al-4V), are critical for aerospace structural components, yet fastener holes within them serve as stress concentration sites prone to fatigue crack initiation. Cold expansion strengthening is a prevalent technique to enhance fatigue life by introducing beneficial compressive residual stresses around these holes. This study systematically investigates the influence of two core process parameters—expansion amount and reaming depth—on the resultant residual stress field and fatigue life enhancement in TC4 alloy. A combined approach of experimental testing and finite element simulation using ABAQUS was employed. The results elucidate that increasing the expansion amount elevates both tangential and radial residual stresses, significantly improving fatigue life; however, excessive expansion induces material damage. Conversely, while reaming improves surface integrity, excessive reaming diminishes the compressive residual stress layer, thereby reducing the fatigue benefit. Optimal parameter combinations were identified for typical structures (A40 and A50), achieving a maximum fatigue life improvement of up to 30 times compared with untreated specimens. This research provides optimized process guidelines and a deeper understanding of the parameter interactions for cold expansion in critical aerospace applications.\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"49 5","pages":"1680-1697"},"PeriodicalIF":3.2,"publicationDate":"2026-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147715148","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

Stochastic Fracture Behavior and Energy Dissipation of Aligned Steel Fiber–Reinforced Cementitious Composites 排列钢纤维增强胶凝复合材料的随机断裂行为和能量耗散

IF 3.2 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2026-04-06 Epub Date: 2026-02-21 DOI: 10.1111/ffe.70214

Yimeng Su, Longbang Qing, Ru Mu

{"title":"Stochastic Fracture Behavior and Energy Dissipation of Aligned Steel Fiber–Reinforced Cementitious Composites","authors":"Yimeng Su, Longbang Qing, Ru Mu","doi":"10.1111/ffe.70214","DOIUrl":"https://doi.org/10.1111/ffe.70214","url":null,"abstract":"<div>\u0000 \u0000 The characteristics of the constitutive behavior of aligned (ASFRC) and ordinary (SFRC) steel fiber–reinforced cementitious composite exert a decisive influence on the fracture performance of the three-point bending beam specimens. This study established a coupled analytical method by integrating the stochastic fiber bridging curve with the matrix constitutive relation, enabling quantitative characterization of the stochastic fracture behavior and energy dissipation mechanisms of both the matrix and fibers. Through stochastic modeling of the fiber embedment length distribution, the mean value and variance of bridging stress were derived. Subsequently, the effects of specimen size and the initial crack length-to-depth ratio (a0/D) on the fracture process zone (FPZ) and energy dissipation were systematically investigated. The simulation results showed good agreement with the experimental measurements. For ASFRC specimens, the proportion of energy dissipated by steel fiber pullout at peak load (Pmax) was significantly higher than that of SFRC. The energy dissipation U undergoes a transition from a matrix-dominated mechanism to a fiber-dominated mechanism. Additionally, the dispersion of energy dissipated by steel fiber pullout in ASFRC specimens was notably smaller than that in SFRC specimens, indicating that the performance fluctuations induced by the stochasticity of fiber orientation were partially mitigated in ASFRC specimens.\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"49 5","pages":"1756-1775"},"PeriodicalIF":3.2,"publicationDate":"2026-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147715213","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

Computational Investigation on the Combined Effect of Applied Strain and Pore Configuration on Strain Concentrators in Additively Manufactured Metals 外加应变和孔隙结构对增材制造金属应变集中器综合影响的计算研究

IF 3.2 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2026-04-06 Epub Date: 2026-02-11 DOI: 10.1111/ffe.70169

Erick Adan Ramirez, Saikumar Reddy Yeratapally, George Robert Weber, Kenji Shimada

{"title":"Computational Investigation on the Combined Effect of Applied Strain and Pore Configuration on Strain Concentrators in Additively Manufactured Metals","authors":"Erick Adan Ramirez, Saikumar Reddy Yeratapally, George Robert Weber, Kenji Shimada","doi":"10.1111/ffe.70169","DOIUrl":"https://doi.org/10.1111/ffe.70169","url":null,"abstract":"Metal additive manufacturing (AM) provides a pathway for creating highly optimized components that would be difficult to produce using traditional manufacturing methods. However, regardless of printing parameters or postprocessing, porosity remains a prevalent challenge in AM components because strain concentrates in the vicinity of the pore, compromising fatigue performance. This study uses finite element analysis to investigate the combined effect of applied load, pore aspect ratio, orientation, and location on strain concentration factors (ECFs) under elastic and plastic deformation. Keyhole and lack-of-fusion pores are idealized as prolate and oblate ellipsoids, respectively. Isolated porosity is modeled through \u0000<math>\u0000 <msub>\u0000 <mrow>\u0000 <mi>J</mi>\u0000 </mrow>\u0000 <mrow>\u0000 <mn>2</mn>\u0000 </mrow>\u0000 </msub></math> plasticity simulations in an automated workflow. Ultimately, novel explicit formulas relating the applied strain and pore configuration to ECF are developed. The model is used to rapidly quantify the uncertainty and extreme values in ECF, where the distribution of inputs is obtained from statistics of AM builds, to advance the development of computationally assisted approaches for qualification of AM components.","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"49 5","pages":"1656-1679"},"PeriodicalIF":3.2,"publicationDate":"2026-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ffe.70169","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147715152","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigation of Creep Properties of Ti-43Al-5V-4Nb Alloy Considering Oxidation Effects Using Miniature Specimens 考虑氧化效应的Ti-43Al-5V-4Nb合金蠕变性能研究

IF 3.2 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2026-04-06 Epub Date: 2026-02-20 DOI: 10.1111/ffe.70223

Lei He, Takamoto Itoh, Noritake Hiyoshi

引用次数: 0

A Gradient Cold Expansion Fatigue Strengthening Method of Titanium Alloy Open Hole Structures 钛合金开孔结构的梯度冷膨胀疲劳强化方法

IF 3.2 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2026-04-06 Epub Date: 2026-02-23 DOI: 10.1111/ffe.70220

Hangjie Shi, Zhiguo Wang, Yangjie Zuo

引用次数: 0

Fatigue Crack Growth Behavior due to the Localized Compressive Deformation on Structural Steel 结构钢局部压缩变形引起的疲劳裂纹扩展行为

IF 3.2 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2026-04-06 Epub Date: 2026-02-05 DOI: 10.1111/ffe.70213

Alejandro López, Ricardo Rafael Ambriz, Christian Jesús García, Cesar Mendoza, David Jaramillo

{"title":"Fatigue Crack Growth Behavior due to the Localized Compressive Deformation on Structural Steel","authors":"Alejandro López, Ricardo Rafael Ambriz, Christian Jesús García, Cesar Mendoza, David Jaramillo","doi":"10.1111/ffe.70213","DOIUrl":"https://doi.org/10.1111/ffe.70213","url":null,"abstract":"<div>\u0000 \u0000 The localized compressive deformation (LCD) process was used to analyze the fatigue crack growth behavior of a high-strength low-alloy structural steel. Eccentrically loaded single-edge crack tension specimens (ESE(T)) in accordance with standard ASTM E647 were precracked at a crack length of about 4 mm from the machined notch by applying a constant amplitude cyclic loading. Subsequently, the LCD process was performed by using semi-spherical indenters to compress both sides of the specimen at the crack tip with different forces (5.0, 7.5, 10 kN). The compressive load and the number of delayed loading cycles are discussed in terms of the crack length and crack tip opening displacement (CTOD). The crack arrest due to the LCD effect increases as a function of increasing the compressive force. The crack was arrested for more than 106 cycles when a compressive force of 10 kN was applied. This phenomenon was analyzed experimentally. Biaxial-stacked rosettes (C4A-06-G1350A-120-39P) were used to measure the strain during the crack propagation as well as the strain modification at the crack tip due to the LCD process. Stress–strain relations were used to determine the stress state induced by the LCD.\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"49 5","pages":"1597-1609"},"PeriodicalIF":3.2,"publicationDate":"2026-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147715047","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

Probabilistic Fatigue Life Prediction Framework for Natural Rubber Considering Ambient Temperatures 考虑环境温度的天然橡胶疲劳寿命概率预测框架

IF 3.2 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2026-04-06 Epub Date: 2026-02-10 DOI: 10.1111/ffe.70219

Xiangnan Liu, Yuxin Yang, Xuepeng Qian

{"title":"Probabilistic Fatigue Life Prediction Framework for Natural Rubber Considering Ambient Temperatures","authors":"Xiangnan Liu, Yuxin Yang, Xuepeng Qian","doi":"10.1111/ffe.70219","DOIUrl":"https://doi.org/10.1111/ffe.70219","url":null,"abstract":"<div>\u0000 \u0000 This paper focuses on the impacts of ambient temperature on the variability of the fatigue life of natural rubber (NR). Traditional physical models, such as those based on crack initiation or propagation, are limited to predicting fatigue life at a single ambient temperature. To overcome this limitation, a data-driven model was developed to estimate the probabilistic fatigue life of NR while incorporating the influence of mechanical loads and ambient temperature. This model uses engineering strain peak, ambient temperature, and reliability as input parameters, with the probabilistic fatigue life as the output. The accuracies of two fatigue life prediction models were compared using the measured fatigue life data of NR under various temperatures. The results showed that the proposed data-driven model achieved a higher prediction accuracy, with the predicted probabilistic fatigue life values falling within 1.5 times the deviation of the measured values across all tested ambient temperatures. These findings demonstrate the effectiveness of the proposed approach for accurately predicting the probabilistic fatigue life of NR.\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"49 5","pages":"1644-1655"},"PeriodicalIF":3.2,"publicationDate":"2026-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147715104","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

Current State of Fretting Fatigue Test Fixtures: A Review 微动疲劳试验夹具的研究现状

IF 3.2 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2026-04-06 Epub Date: 2026-02-12 DOI: 10.1111/ffe.70212

Zeeshan Anjum, Shenglin Liang, Qingwen Dai, Wei Huang, Jingqiu Wang, Xiaolei Wang

引用次数: 0

Effects of Hold Time on the Elevated Temperature Fatigue Crack Growth Behavior of Alloy 247LC-DS 保温时间对247LC-DS合金高温疲劳裂纹扩展行为的影响

IF 3.2 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2026-04-06 Epub Date: 2026-02-23 DOI: 10.1111/ffe.70201

Zachary B. Towner, Santosh B. Narasimhachary, Phillip W. Gravett, Richard W. Neu, Christopher L. Muhlstein, Ashok Saxena

{"title":"Effects of Hold Time on the Elevated Temperature Fatigue Crack Growth Behavior of Alloy 247LC-DS","authors":"Zachary B. Towner, Santosh B. Narasimhachary, Phillip W. Gravett, Richard W. Neu, Christopher L. Muhlstein, Ashok Saxena","doi":"10.1111/ffe.70201","DOIUrl":"https://doi.org/10.1111/ffe.70201","url":null,"abstract":"Creep–fatigue crack growth (CFCG) experiments were performed at 850°C and 950°C on nominally 12.70-mm-thick compact-type specimens of alloy 247LC-DS, a Ni-base superalloy. The loading cycles consisted of trapezoidal waveforms with hold times of 2 and 20 min at the maximum force. The crack plane was oriented normally to the solidification direction. The fracture surfaces and the crack path-microstructure interactions were characterized. Competing time- and cycle-dependent mechanisms contributed to crack growth during these tests. Time-dependent crack growth rates, \u0000<math>\u0000 <mi>da</mi>\u0000 <mo>/</mo>\u0000 <mi>dt</mi></math>, at 850°C and 950°C correlated with \u0000<math>\u0000 <msub>\u0000 <mfenced>\u0000 <msub>\u0000 <mi>C</mi>\u0000 <mi>t</mi>\u0000 </msub>\u0000 </mfenced>\u0000 <mi>avg</mi>\u0000 </msub></math> for 2-min and 20-min hold durations. These CFCG rates were also comparable to the creep crack growth (CCG) rates previously reported. Crack growth rates showed significant variability under all test conditions. This scatter was attributed to the formation of microcracks connecting into secondary cracks in the interdendritic regions aligned with the solidification direction. Material models representing the CCG and CFCG data are described.","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"49 5","pages":"1794-1808"},"PeriodicalIF":3.2,"publicationDate":"2026-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ffe.70201","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147715167","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on Fatigue Damage and Cycle Life of Cathode Particles in Lithium-Ion Batteries Based on Representative Volume Element 基于代表性体积元的锂离子电池正极颗粒疲劳损伤及循环寿命研究

IF 3.2 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2026-03-05 Epub Date: 2026-01-26 DOI: 10.1111/ffe.70187

Ruonan Xiong, Xiaoxiao Wang, Haofeng Chen, Weiling Luan

{"title":"Study on Fatigue Damage and Cycle Life of Cathode Particles in Lithium-Ion Batteries Based on Representative Volume Element","authors":"Ruonan Xiong, Xiaoxiao Wang, Haofeng Chen, Weiling Luan","doi":"10.1111/ffe.70187","DOIUrl":"https://doi.org/10.1111/ffe.70187","url":null,"abstract":"<div>\u0000 \u0000 Cyclic diffusion-induced stress due to the diffusion of lithium ions gives rise to fatigue in the active material of lithium-ion battery electrodes along with the repeated thermal and mechanical loads, which tends to decrease battery capacity and shorten life. Therefore, this paper comprehensively investigates the fatigue behavior of LiNixMnyCozO2 cathode active particles under cyclic multiload conditions by establishing a multiparticle representative volume element (RVE) model. With the linear matching method (LMM), the reverse plasticity limits of particles with varying numbers but the same volume fraction are calibrated. Additionally, the plastic strain range of cathode active particles is calculated by Direct Steady Cycle Analysis (DSCA), where the influences of different load combinations on fatigue failure are evaluated. A semianalytical model is derived to predict the fatigue damage of active particles under complex multiple loads. Moreover, by utilizing the unified procedure for fatigue and ratchet analysis (UPFRA) with material fatigue parameters, a series of constant fatigue life boundaries is established, and the impacts of working temperature and target structural life on these boundaries are investigated. This research also reveals that the fatigue life of active particles is significantly extended with the particle radius below the critical threshold.\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"49 4","pages":"1472-1487"},"PeriodicalIF":3.2,"publicationDate":"2026-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147569516","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