Fatigue & Fracture of Engineering Materials & Structures最新文献_第6页

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

Fatigue Short Crack Growth Prediction of Additively Manufactured Alloy Based on Ensemble Learning 基于集成学习的增材制造合金疲劳短裂纹扩展预测

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-02-02 DOI: 10.1111/ffe.14573

Qinghui Huang, Dianyin Hu, Rongqiao Wang, Ivan Sergeichev, Jingyu Sun, Guian Qian

引用次数: 0

Effects of Temperature and Microstructure on Short Crack Growth of Laser Powder Bed Fusion Ni-Based Superalloy 温度和组织对激光粉末床熔合镍基高温合金短裂纹扩展的影响

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-02-02 DOI: 10.1111/ffe.14582

Feng Zhang, Yonghua Li, Tao Shi, Zibiao Wang, Wenqi Liu, Qiang Fu, Changbo Wu, Guian Qian

引用次数: 0

Fatigue Life Simulation of Short Glass Fiber/Rubber Composites Using the Damage-Entropy and Self-Heating Concepts 基于损伤熵和自热概念的短玻璃纤维/橡胶复合材料疲劳寿命模拟

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-01-31 DOI: 10.1111/ffe.14562

E. Fatemi, M. M. Shokrieh, A. H. Mirzaei

引用次数: 0

Investigation on the Effect of Initial Damage on the Time-Dependent Deformation of Rock Materials Under Step Loading 阶梯加载下初始损伤对岩石材料随时间变形影响的研究

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-01-31 DOI: 10.1111/ffe.14586

Ling Zhu, Tiantao Li, Xiangjun Pei, Peng Xue, Yufei Liang

{"title":"Investigation on the Effect of Initial Damage on the Time-Dependent Deformation of Rock Materials Under Step Loading","authors":"Ling Zhu, Tiantao Li, Xiangjun Pei, Peng Xue, Yufei Liang","doi":"10.1111/ffe.14586","DOIUrl":"https://doi.org/10.1111/ffe.14586","url":null,"abstract":"<div>\u0000 \u0000 <p>Investigating the creep properties of damaged rocks is essential for evaluating the long-term stability of seismically cracked slopes in earthquake-prone regions. In this study, cyclic loading-unloading and step creep loading tests were sequentially performed on metamorphic sandstone, granite, and phyllite. Dissipated energy was introduced to establish the initial damage model, and the effect patterns and mechanisms of initial damage on creep properties were analyzed. The experimental results showed that dissipated energy and the damage variable increased linearly with the number of loading-unloading cycles. The increase in initial damage results in greater creep strain, higher steady-state creep rate, and increased dissipated energy under the same creep loading, while reducing the long-term strength of the rock. Prior loading-unloading promoted the development of microcracks and accelerated the time-dependent deformation of the rock. This study provides a new understanding of the long-term stability of seismically cracked slopes in strong-earthquake mountainous areas.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 4","pages":"1819-1832"},"PeriodicalIF":3.1,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143582078","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

Influence of Laser-Assisted Cutting on the Surface Integrity and Fatigue Life of FeCoCrNiAl0.6 High-Entropy Alloy 激光辅助切割对feccrnial0.6高熵合金表面完整性和疲劳寿命的影响

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-01-29 DOI: 10.1111/ffe.14576

Ping Zhang, Zhenyong Lin, Tengfei Zhang, Changyin Lan, Xiaomin Jiang

{"title":"Influence of Laser-Assisted Cutting on the Surface Integrity and Fatigue Life of FeCoCrNiAl0.6 High-Entropy Alloy","authors":"Ping Zhang, Zhenyong Lin, Tengfei Zhang, Changyin Lan, Xiaomin Jiang","doi":"10.1111/ffe.14576","DOIUrl":"https://doi.org/10.1111/ffe.14576","url":null,"abstract":"<div>\u0000 \u0000 <p>This study explores the application of laser-assisted cutting (LAC) in FeCoCrNiAl<sub>0.6</sub> high-entropy alloys to address traditional machining challenges and poor surface quality. It systematically analyzes the effects of laser power, scan speed, and spot diameter on surface integrity and fatigue life. Using Abaqus/FE-SAFE simulations and LAC experiments, differences in surface quality and fatigue cycles under various laser parameters are observed. Results show that increasing the spot radius reduces heat accumulation and center temperature. A 1 mm radius yields a center temperature 5.58 times higher than a 7 mm radius and achieves a residual compressive stress of 412 MPa, which decreases to 198 MPa (51.9% reduction) at 7 mm. Larger laser power increases stress and fatigue life positively, while higher scan speeds reduce stress. Fatigue cycles drop by 82.9% as the spot radius increases from 1 to 7 mm, while 25 W power extends fatigue life 4.26 times compared to 10 W.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 4","pages":"1806-1818"},"PeriodicalIF":3.1,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143581997","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

FFT-Based Phase-Field Fracture Modeling of Periodic Inhomogeneous Microstructures 基于fft的周期性非均匀微结构相场断裂建模

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-01-29 DOI: 10.1111/ffe.14553

Tom Schneider, Markus Kästner

{"title":"FFT-Based Phase-Field Fracture Modeling of Periodic Inhomogeneous Microstructures","authors":"Tom Schneider, Markus Kästner","doi":"10.1111/ffe.14553","DOIUrl":"https://doi.org/10.1111/ffe.14553","url":null,"abstract":"<p>The failure of inhomogeneous microstructures is of increasing relevance, driven by the future need for tailored materials and the significant influence of microstructure on macroscopic properties. The phase-field method for fracture has proven to be a versatile tool for predicting unknown crack paths and failure mechanisms. In this contribution, we propose a phase-field model for fracture of periodic heterogeneous microstructures in a general finite strain setting. To overcome the bottleneck of scalability, we employ powerful and scalable solvers based on the fast Fourier transform (FFT). We demonstrate the capability of the model using the fundamental example of brittle fracture. A thorough comparison with conventional finite element method (FEM) reference results is carried out using a simple reference geometry. The results obtained show quantitative agreement between both numerical methods. Parameter studies provide recommendations for the choice of the numerical parameters. Following the comparison, we apply the FFT-based method to synthetic inhomogeneous microstructures, with a special emphasis of the investigation on scalability with increasing degrees of freedom and robustness of the method. The results of 2D and 3D simulations are promising, paving the way for future extensions in inverse materials design, for example, for metallic microstructures.</p>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 4","pages":"1782-1805"},"PeriodicalIF":3.1,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ffe.14553","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143581996","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