Fatigue & Fracture of Engineering Materials & Structures最新文献_第3页

Effect of Pore Size on the High Cycle Fatigue Property of Al-Si-Mg Alloy for High Speed Train Gearbox Housing 孔径对高速列车齿轮箱壳体Al-Si-Mg合金高周疲劳性能的影响

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-02-09 DOI: 10.1111/ffe.14581

He-Fei Li, Xiao-Peng Wang, Shao-Pu Yang, Yong-Qiang Liu, Jian-Chao Zhang, Guo-Jie Cai

{"title":"Effect of Pore Size on the High Cycle Fatigue Property of Al-Si-Mg Alloy for High Speed Train Gearbox Housing","authors":"He-Fei Li, Xiao-Peng Wang, Shao-Pu Yang, Yong-Qiang Liu, Jian-Chao Zhang, Guo-Jie Cai","doi":"10.1111/ffe.14581","DOIUrl":"https://doi.org/10.1111/ffe.14581","url":null,"abstract":"<div>\u0000 \u0000 <p>Casting defects are the important factors in casting aluminum alloy, which would significantly reduce the fatigue life of engineering components. In this study, the quantitative relationship between the pore size and high cycle fatigue property of Al-Si-Mg alloy for high-speed train gearbox housing was systematically studied. The projected areas of pores within the fracture zone for all failed specimens were systematically measured. The equivalent diameter of most pore defects is less than 400 μm, and the median equivalent diameter of the pore defects is 280 μm. The effect of pore size on the fatigue life of Al-Si-Mg alloy is expressed by the improved Shiozama model, which can explain its fatigue life dispersion. Additionally, the critical defect size of Al-Si-Mg alloy calculated by the standard KT diagram is 276 μm. The results would provide a theoretical basis for the manufacturing process and evaluation standards of high-speed train gearbox housing.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 5","pages":"2046-2053"},"PeriodicalIF":3.1,"publicationDate":"2025-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143786998","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 Life Model for Very High Cycle Fatigue Under Rolling Contact Loading and Its Application in Shattered Rim of Railway Wheels 滚动接触载荷下极高周疲劳寿命模型及其在铁路车轮破碎轮缘中的应用

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-02-09 DOI: 10.1111/ffe.14599

Pengcheng Gao, Xiaolong Liu, Sijin Zhang, Deqing Ma, Kelian Luo, Wenjing Wang

引用次数: 0

Fatigue Assessment of Precorroded AlSi9Cu3 Specimens Incorporating Short Crack Propagation 含短裂纹扩展的预腐蚀AlSi9Cu3试样疲劳评价

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-02-09 DOI: 10.1111/ffe.14593

Peter Oberreiter, Markus Schönowitz, Bernd Maier, Florian Grün

{"title":"Fatigue Assessment of Precorroded AlSi9Cu3 Specimens Incorporating Short Crack Propagation","authors":"Peter Oberreiter, Markus Schönowitz, Bernd Maier, Florian Grün","doi":"10.1111/ffe.14593","DOIUrl":"https://doi.org/10.1111/ffe.14593","url":null,"abstract":"<p>This study investigates the fatigue behavior of AlSi9Cu3 aluminum die-cast alloy after exposure to accelerated corrosive conditions. It underscores the significant impact of minor localized corrosion imperfections on fatigue strength and presents a numerically efficient method for fatigue assessment based on fracture mechanics principles. Fatigue tests under rotary bending load showed a 34% reduction in long-life fatigue strength for precorroded surfaces compared to polished ones. Numerical simulations, which treated the precorrosion as a single crack-like surface imperfections, provided good estimates of fatigue life, when using the mean corrosion depth as initial flaw depth. Variations in the assessed fatigue strengths for different flaw geometries and sizes ranged from 13.7% above to 22.2% below the experimental values. The findings underscore the importance of incorporating short crack propagation, particularly for small corrosive defects, in fatigue assessments to enhance accuracy and ensure component reliability and safety when corrosion-induced imperfections are present.</p>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 5","pages":"2054-2066"},"PeriodicalIF":3.1,"publicationDate":"2025-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ffe.14593","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143786999","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

Mode II Semi-Analytical Simplified Approach for Stress Field Distributions Around Notch Tip in Composite Materials 复合材料缺口尖端周围应力场分布的模式 II 半分析简化方法

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-02-06 DOI: 10.1111/ffe.14566

Adel Esmaeili, Majid Safarabadi

引用次数: 0

Novel Creep–Fatigue Interaction Model Based on Kitagawa–Takahashi and a Probabilistic Creep Pore Model 基于Kitagawa-Takahashi和概率蠕变孔隙模型的蠕变-疲劳相互作用新模型

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-02-05 DOI: 10.1111/ffe.14550

Tuan Duc Nguyen, Oliver Jordan, Lucas Maede, Tilmann Beck, Dirk Kulawinski

{"title":"Novel Creep–Fatigue Interaction Model Based on Kitagawa–Takahashi and a Probabilistic Creep Pore Model","authors":"Tuan Duc Nguyen, Oliver Jordan, Lucas Maede, Tilmann Beck, Dirk Kulawinski","doi":"10.1111/ffe.14550","DOIUrl":"https://doi.org/10.1111/ffe.14550","url":null,"abstract":"<div>\u0000 \u0000 <p>The Kitagawa–Takahashi (KT) diagram and the El Haddad equation are widely used to predict the allowable stress range \u0000<span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <mi>Δ</mi>\u0000 <mi>σ</mi>\u0000 </mrow>\u0000 <annotation>$$ Delta sigma $$</annotation>\u0000 </semantics></math> for an internal defect size \u0000<span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <mi>a</mi>\u0000 </mrow>\u0000 <annotation>$$ a $$</annotation>\u0000 </semantics></math>. This approach discriminates between regions designating nonpropagation and propagation of short and long cracks. However, the KT diagram is incapable of describing the damage under creep conditions, as in that case, the assumption of a time-independent threshold for fatigue crack propagation is invalid and must be considered as time dependent. The proposed Kitagawa–Takahashi with creep (KTC) method combines pore size distributions predicted by a probabilistic creep pore model with the El Haddad equation. This new approach is suitable to characterize the interaction of creep–fatigue loading. Within this work, modified Wöhler and Haigh diagrams for creep–fatigue at various temperatures are presented and validated with creep–fatigue experiments as well as high-cycle fatigue (HCF) tests on precrept specimens made from the polycrystalline nickel-base superalloy 247.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 5","pages":"2009-2021"},"PeriodicalIF":3.1,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143786928","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 the Fitting Method for P-S-N Curves With Extremely Small Sample Experiment Data: Improved Backwards Statistical Inference Method 极小样本实验数据的P-S-N曲线拟合方法研究：改进的反向统计推断法

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-02-05 DOI: 10.1111/ffe.14560

Tong Mu, Bingfeng Zhao, Liyang Xie, Dongwu Gao, Xin Wang, Jiaxin Song

{"title":"Research on the Fitting Method for P-S-N Curves With Extremely Small Sample Experiment Data: Improved Backwards Statistical Inference Method","authors":"Tong Mu, Bingfeng Zhao, Liyang Xie, Dongwu Gao, Xin Wang, Jiaxin Song","doi":"10.1111/ffe.14560","DOIUrl":"https://doi.org/10.1111/ffe.14560","url":null,"abstract":"<div>\u0000 \u0000 <p>This study focuses on an improved statistical processing method for extremely small sample probabilistic S-N (P-S-N) curve test data and proposes an improved backwards statistical inference method. By employing a quantile consistency principle, an equivalent large sample of fatigue lives can be obtained by congregating all test data, which enables high-precision estimation of distribution parameters with limited data at each stress level. The logarithmic life standard deviation is assumed to have a logarithmic linear relationship with the stress levels. A method for revealing the relationship is proposed, and all of the fatigue life data can be equivalently congregated to determine the P-S-N curve. The test results demonstrate that this improved method delivers superior fitting results compared to other methods in scenarios with extremely small sample sizes. Additionally, this method imposes no constraints on sample format and allows for flexible setting of stress levels and sample sizes.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 5","pages":"1999-2008"},"PeriodicalIF":3.1,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143786927","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

Multiscale Analysis of Corrosion Fatigue Crack Propagation Mechanism of High-Strength Steel in Seawater Atmospheric Environment 海水大气环境中高强度钢腐蚀疲劳裂纹扩展机理的多尺度分析

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-02-04 DOI: 10.1111/ffe.14600

Songling Xue, Li Zhou, Ruili Shen, Qinghai Xie

{"title":"Multiscale Analysis of Corrosion Fatigue Crack Propagation Mechanism of High-Strength Steel in Seawater Atmospheric Environment","authors":"Songling Xue, Li Zhou, Ruili Shen, Qinghai Xie","doi":"10.1111/ffe.14600","DOIUrl":"https://doi.org/10.1111/ffe.14600","url":null,"abstract":"<div>\u0000 \u0000 <p>E690 high-strength steel is widely used in ocean engineering due to its excellent properties. However, it is highly susceptible to fracture and failure under the coupled effects of corrosion and fatigue in marine environments. This paper investigates the corrosion fatigue fracture mechanisms through experimental and theoretical analyses. First, a series of corrosion fatigue tests on E690 steel specimens were conducted to study the crack propagation behavior, and the crack growth parameters were fitted using the Paris equation. Second, scanning electron microscopy was employed to analyze the corrosion fracture characteristics of the E690 steel specimens. Lastly, finite element analysis and molecular dynamics simulations were used to examine the crack propagation process and failure mechanisms from multiscales. The results show that under the influence of corrosion, dislocation accumulation at the crack tip leads to a plastic deformation mechanism dominated by dislocations during crack propagation. Furthermore, the combined effects of anodic dissolution and hydrogen embrittlement accelerate crack growth. In dry air conditions, loading frequency has no significant impact on the crack growth rate, whereas, in corrosive environments, the coupling of low frequency and corrosion shortens the corrosion fatigue life.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 4","pages":"1905-1918"},"PeriodicalIF":3.1,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143581487","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

Investigation of the Initiation of Composite Mode I/II Crack in Gas-Bearing Rock Caused by Nonuniformly Distributed Heat Flux 非均匀热流致含气岩石I/II型复合裂纹起裂研究

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-02-04 DOI: 10.1111/ffe.14574

Wei Li, Wenhua Chen

{"title":"Investigation of the Initiation of Composite Mode I/II Crack in Gas-Bearing Rock Caused by Nonuniformly Distributed Heat Flux","authors":"Wei Li, Wenhua Chen","doi":"10.1111/ffe.14574","DOIUrl":"https://doi.org/10.1111/ffe.14574","url":null,"abstract":"<div>\u0000 \u0000 <p>To investigate the patterns of rock crack initiation caused by the nonuniformly distributed heat flux resulting from fracture air-vapor pressure, the fracture air-vapor pressure control equation was deduced, and five spatial distribution forms of heat flux were established. The crack initiation criterion considering nonuniform heat flux conditions was proposed based on the modified maximum tangential stress criterion, the theory was validated using FEM and FE-FEM numerical methods. The results show that the peak value of nonuniform heat flux determines the maximum value of the crack surface temperature, and the distribution form determines the range of high-temperature and low-temperature regions on the crack surface. Axisymmetric heat flux induces centrosymmetric cracking, and nonaxisymmetric heat flux induces noncentrosymmetric cracking. It was observed that when <i>q</i><sub>max</sub> = 5000 mW/m<sup>2</sup>, there is a mutation line in the critical crack initiation angle, which mutates from −90° to 90°. The position of the mutation line decreases with increasing heat flux.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 5","pages":"1973-1998"},"PeriodicalIF":3.1,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143786754","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

Mechanism of Fatigue Crack Closure in Steel Under High-Density Pulsed Current 高密度脉冲电流作用下钢的疲劳裂纹闭合机理

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-02-03 DOI: 10.1111/ffe.14579

Shota Nakayama, Yutaro Sugeno, Tomoto Kambayashi, Atsushi Hosoi, Yuichi Furukawa, Takashi Tomita, Hiroyuki Kawada

引用次数: 0

Study of Fatigue Crack Initiation in 316 Stainless Steel 316不锈钢疲劳裂纹萌生的研究

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-02-03 DOI: 10.1111/ffe.14592

O. Benabdeljalil, M. K. Khan, M. E. Fitzpatrick

{"title":"Study of Fatigue Crack Initiation in 316 Stainless Steel","authors":"O. Benabdeljalil, M. K. Khan, M. E. Fitzpatrick","doi":"10.1111/ffe.14592","DOIUrl":"https://doi.org/10.1111/ffe.14592","url":null,"abstract":"<div>\u0000 \u0000 <p>Crack initiation in AISI 316 stainless steel has been investigated. Persistent slip bands (PSBs) were characterized using scanning electron microscopy (SEM) and atomic force microscopy (AFM). PSBs on the surface of the material increase the surface roughness and result in crack initiation. EBSD data from near the crack initiation region were used to correlate the global and local misorientations of the grains, plastic deformation, and Schmid factor with the fatigue life of specimens. The crack initiation region was found to have the highest misorientations. The region near crack initiation was found to have more plastic deformation, which was severe in specimens loaded with higher stresses. The kernel average misorientation (KAM) and grain reference orientation deviation (GROD) maps from the EBSD data were investigated for specimens that failed at different fatigue cycles. It was found that the interaction of high dislocation density, substructuring, and misorientation of low-angle grain boundaries in the region of plastic deformation resulted in fatigue crack initiation.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 4","pages":"1893-1904"},"PeriodicalIF":3.1,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143581828","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