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

Effect Mechanism of Water Jet Peening on Surface Integrity and Ultrahigh-Cycle Fatigue Performance of “Sandwich” Laminates 水射流强化对“三明治”层合板表面完整性和超高周疲劳性能的影响机理

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-04-08 DOI: 10.1111/ffe.14633

Ping Zhang, Yeran Gao, Xiaomin Jiang, Yan Yu

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Fractal Analysis and Mechanical Characterization of 3D-Printed Concave Hexagonal Structures With Negative Poisson's Ratio 负泊松比三维打印凹六边形结构的分形分析及力学特性

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-04-07 DOI: 10.1111/ffe.14646

Shiyun Lin, Menghao Ran, Donghang Jie, Dagang Yin

{"title":"Fractal Analysis and Mechanical Characterization of 3D-Printed Concave Hexagonal Structures With Negative Poisson's Ratio","authors":"Shiyun Lin, Menghao Ran, Donghang Jie, Dagang Yin","doi":"10.1111/ffe.14646","DOIUrl":"https://doi.org/10.1111/ffe.14646","url":null,"abstract":"<div>\u0000 \u0000 <p>Materials with a negative Poisson's ratio have gained attention for their unique mechanical properties, enabling applications in aerospace, construction, and medicine. However, the complex geometry of such structures poses challenges for traditional manufacturing. 3D printing offers a solution, allowing precise fabrication of these intricate designs. This study uses 3D printing to create three types of structures from PLA: concave hexagonal, four-directional chiral, and biomimetic feather structures. Tensile testing revealed that the concave hexagonal structure outperformed the others in mechanical strength. Finite element simulations confirmed its superior load-bearing capacity during fracture. Additionally, fractal analysis showed the concave hexagonal structure had the highest fractal dimension in crack propagation, further validating its mechanical superiority. These findings highlight the concave hexagonal structure's advantages through experimental, numerical, and fractal analyses.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 7","pages":"2821-2833"},"PeriodicalIF":3.1,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144213833","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}

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Effect of Shaped Film Cooling Hole Manufacturing Defects on the High-Cycle Fatigue Behavior of a Ni-Based Single-Crystal Superalloy 形膜冷却孔制造缺陷对ni基单晶高温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 : 2025-04-06 DOI: 10.1111/ffe.14641

Yue Wang, Rong Jiang, Mo Chen, Xiaoyu Li, Xuping Lu, Haiyong Zha, Yingdong Song

{"title":"Effect of Shaped Film Cooling Hole Manufacturing Defects on the High-Cycle Fatigue Behavior of a Ni-Based Single-Crystal Superalloy","authors":"Yue Wang, Rong Jiang, Mo Chen, Xiaoyu Li, Xuping Lu, Haiyong Zha, Yingdong Song","doi":"10.1111/ffe.14641","DOIUrl":"https://doi.org/10.1111/ffe.14641","url":null,"abstract":"<div>\u0000 \u0000 <p>The complex geometrical configuration of shaped film cooling holes (FCHs) enhances the cooling efficiency of turbine blades, while the stress concentration at the shaped FCH edge and the manufacturing defects usually leads to high-cycle fatigue (HCF) failure under the service conditions. In this study, HCF tests at 900°C were conducted on DD6 single-crystal superalloy containing dustpan and dovetail FCHs. The effect of shaped FCHs and manufacturing defects on the HCF strength was investigated, and the related HCF failure mechanism was analyzed using SEM, EDS, and EBSD. The results show that manufacturing defects including pores, recast layer, and polycrystalline microstructure region exist around the shaped FCH edge. The stress concentration of defective pores promotes the plastic deformation and oxidation at high temperatures, leading to crack initiation. The oxide layer thickness in the high stress area of the dovetail FCH specimen is 3.44 μm thicker than that of the dustpan specimen, and correspondingly the fatigue strength of the dovetail FCH specimen is 13.96 MPa lower than that of the dustpan specimen (304.93 MPa vs. 318.89 MPa). The fatigue strength of these two kinds of FCH specimens is lower than that of the traditional cylindrical FCHs due to the existence of the manufacturing defects, indicating the necessity to consider the effect of manufacturing defects in the evaluation of the HCF strength of components with the shaped FCHs.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 7","pages":"2803-2820"},"PeriodicalIF":3.1,"publicationDate":"2025-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144213987","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}

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Damage Analyses and Crack Propagation of Wire Drawing With Central Inclusion Under Different Compression Ratios 含中心夹杂拉丝在不同压缩比下的损伤分析及裂纹扩展

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-04-06 DOI: 10.1111/ffe.14637

Ao Ma, Feng Fang, Zhaoxia Li

{"title":"Damage Analyses and Crack Propagation of Wire Drawing With Central Inclusion Under Different Compression Ratios","authors":"Ao Ma, Feng Fang, Zhaoxia Li","doi":"10.1111/ffe.14637","DOIUrl":"https://doi.org/10.1111/ffe.14637","url":null,"abstract":"<div>\u0000 \u0000 <p>The problem of wire breaking in the production of steel cord has always attracted much attention. The research on the mechanism of crack propagation caused by drawing damage is still to be urgently solved in engineering. Therefore, the fracture morphology of cord steel during drawing and the internal micro-defects of steel wire are analyzed by SEM. On this basis, a continuous multi-pass drawing model of steel wire with central inclusions under different compression ratios is established by FEM. The process of crack propagation caused by damage is realized in the simulation. The results show that the larger the size of the inclusion is, the easier it is to form a V-shaped crack propagation path at the front of the inclusion. With the decrease of the compression ratio under the total drawing strain, the internal damage increment of the steel wire increases gradually after multi-pass drawing, which will increase the failure probability of the steel wire as a whole. In particular, the damage of the intact steel wire increases linearly when the compression ratio <i>R</i> = 12%. After seven-pass drawing, the maximum damage value reaches 0.117, which increases by 0.049 and 0.032 compared with the compression ratio <i>R</i> = 20% and <i>R</i> = 16%, respectively.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 6","pages":"2743-2758"},"PeriodicalIF":3.1,"publicationDate":"2025-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143909337","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}

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Indentation and Puncturing of Pristine and Flawed Soft Membranes 原始和有缺陷软膜的压痕和穿刺

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-04-06 DOI: 10.1111/ffe.14640

Matteo Montanari, Roberto Brighenti, Silvia Monchetti, Andrea Spagnoli

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In Situ Observation of Small Crack Growth and Fatigue Life Modeling for In713C Ni-Based Superalloy In713C镍基高温合金小裂纹扩展的原位观察及疲劳寿命建模

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-04-02 DOI: 10.1111/ffe.14635

Xiao-Long Li, Yu-Ke Liu, Zi-Wei Wang, Rong Chen, Ming-Liang Zhu

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Dynamic Fracture Characteristics of Layered Rock Mass With Two Beddings Under Explosive Loads of Slotted Charges 裂隙装药爆炸载荷作用下两层状岩体的动态断裂特性

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-04-01 DOI: 10.1111/ffe.14634

Xu Wang, Zhongwen Yue, Kejun Xue, Huang Wang, Meng Ren, Zifan Cheng, Linzhi Peng

{"title":"Dynamic Fracture Characteristics of Layered Rock Mass With Two Beddings Under Explosive Loads of Slotted Charges","authors":"Xu Wang, Zhongwen Yue, Kejun Xue, Huang Wang, Meng Ren, Zifan Cheng, Linzhi Peng","doi":"10.1111/ffe.14634","DOIUrl":"https://doi.org/10.1111/ffe.14634","url":null,"abstract":"<div>\u0000 \u0000 <p>A large number of beddings inside layered rock masses can significantly affect the dynamic fracture characteristics of the rock mass. In this study, the propagation process of explosive cracks in layered rock masses was visualized using digital image correlation combined with high-speed photography technology, focusing on the dynamic fracture mechanical behavior of layered rock masses with two beddings under an explosive load of slotted charges. The results indicate that, in the fracture process of layered rock masses, a large number of microscopic cracks in the front area of the crack tip are continuously activated, developed, and fused, ultimately converging into macroscopic main cracks that can cause fracture failure. During the dynamic fracture process of the layered rock masses, the displacement field of the specimen exhibited a clear gradient, with obvious displacement contour lines appearing and no discontinuity in the contour lines at the beddings. Under the premise of an appropriate spacing between the two beddings, the continuous reflection and superposition of stress waves between the two beddings causes the rock mass to crack again, resulting in secondary cracks. Vertical bedding has an inhibitory effect on the propagation behavior of the main explosive crack.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 6","pages":"2725-2742"},"PeriodicalIF":3.1,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143908984","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}

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The Dual Role of Twinning Deformation in a Magnesium Alloy up to Very High Cycle Fatigue Regime 镁合金在高周疲劳状态下孪晶变形的双重作用

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-04-01 DOI: 10.1111/ffe.14643

Rong Chen, Jing-Bo Zhao, De-Jiang Li, Ming-Liang Zhu, Fu-Zhen Xuan

{"title":"The Dual Role of Twinning Deformation in a Magnesium Alloy up to Very High Cycle Fatigue Regime","authors":"Rong Chen, Jing-Bo Zhao, De-Jiang Li, Ming-Liang Zhu, Fu-Zhen Xuan","doi":"10.1111/ffe.14643","DOIUrl":"https://doi.org/10.1111/ffe.14643","url":null,"abstract":"<div>\u0000 \u0000 <p>In this work, push–pull cyclic loading tests were conducted on a LA42 alloy up to the very high cycle regime to understand the effects of internal defects and microstructural damage on the fatigue mechanisms. The <i>S</i>–<i>N</i> curve shows a bilinear pattern with fatigue crack initiation characterized by multiple internal crack initiation sites, interior shrinkage connection, and microstructural damage induced facet formation. It is found that apart from the basal slip, the twinning deformation played dual roles in microstructural damage and fatigue crack initiation. Under larger plastic deformations, twinning improved the strain compatibility between adjacent grains relaxing matrix damage, and most of the crack initiation occurred at interior shrinkages. In contrast, twinning proliferated with long life under low strains, which enhanced the interaction between dislocation slip and twinning, promoting the formation of interior facets under shear stress. The varied roles of twinning deformation in the magnesium alloy suggest that the traditional fatigue limit does not exist during long-term cyclic loading.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 6","pages":"2759-2773"},"PeriodicalIF":3.1,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143908985","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}

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Predictive Modeling of Tensile Fracture in Synthetic Fiber Ropes Using Generalized Additive Models 基于广义加性模型的合成纤维绳索拉伸断裂预测建模

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-03-26 DOI: 10.1111/ffe.14631

Yahia Halabi, Hu Xu, Zhixiang Yu, Wael Alhaddad, Yang Cheng, Changgen Wu

{"title":"Predictive Modeling of Tensile Fracture in Synthetic Fiber Ropes Using Generalized Additive Models","authors":"Yahia Halabi, Hu Xu, Zhixiang Yu, Wael Alhaddad, Yang Cheng, Changgen Wu","doi":"10.1111/ffe.14631","DOIUrl":"https://doi.org/10.1111/ffe.14631","url":null,"abstract":"<div>\u0000 \u0000 <p>This study investigates the tensile failure behavior of synthetic fiber ropes composed of nylon (6-PA), polypropylene (i-PP), and polyester (PET) fibers. A comprehensive experimental program was conducted using 202 rope specimens, with nominal diameters ranging from 4 to 20 mm, subjected to monotonic and cyclic loading conditions. The resulting load–strain data were systematically compiled for advanced statistical analysis. Generalized additive models (GAMs) were developed using R programming to predict failure forces and strains, incorporating a Weibull distribution framework for failure responses. The GAM approach demonstrated superior predictive capability, revealing a linear correlation between rope diameter and failure strain across all materials, as well as a nonlinear relationship between diameter and failure force. Notably, GAM models utilizing natural-spline representations exhibited enhanced performance over conventional Weibull models. These findings contribute to a deeper understanding of the tensile properties of synthetic ropes, offering a data-driven approach to optimize testing efforts and improve the reliability of these materials for engineering applications.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 6","pages":"2686-2707"},"PeriodicalIF":3.1,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143909500","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}

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Fatigue Strength Prediction and Degradation Behavior Analysis of 6005A-T6 Aluminum Alloy Considering Fatigue Aging Effects 考虑疲劳老化效应的6005A-T6铝合金疲劳强度预测及退化行为分析

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-03-26 DOI: 10.1111/ffe.14632

Bing Yang, Zhe Zhang, Hai Deng, Mingyang Ma, Jinbang Liu, Wenyang Shao, Chao Wang, Shoune Xiao, Guangwu Yang, Tao Zhu

{"title":"Fatigue Strength Prediction and Degradation Behavior Analysis of 6005A-T6 Aluminum Alloy Considering Fatigue Aging Effects","authors":"Bing Yang, Zhe Zhang, Hai Deng, Mingyang Ma, Jinbang Liu, Wenyang Shao, Chao Wang, Shoune Xiao, Guangwu Yang, Tao Zhu","doi":"10.1111/ffe.14632","DOIUrl":"https://doi.org/10.1111/ffe.14632","url":null,"abstract":"<div>\u0000 \u0000 <p>This study conducts an in-depth analysis of the mechanical property changes of 6005A-T6 aluminum alloy under different fatigue aging states (the process in which the material's performance gradually deteriorates over time under cyclic loading). First, the evolution of surface displacement fields was analyzed using digital image correlation combined with various levels of fatigue aging pretreatment. Through single-cycle tests and tensile tests, the displacement field responses of the material in different degradation states were examined, and changes in ultimate strength, yield strength, elongation, and section shrinkage were further analyzed. Based on the existing yield strength-tensile strength-fatigue strength (Y-T-F) model, an improved approach, the Y-T-F-II model, was proposed to account for fatigue aging effects and validated for fatigue strength prediction, achieving a maximum error of only 0.17%. The results showed that fatigue aging significantly affects the fatigue strength, ductility, and toughness of 6005A-T6 aluminum alloy, and the improved model provides more accurate fatigue strength predictions under various degradation states.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 6","pages":"2669-2685"},"PeriodicalIF":3.1,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143909499","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}

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