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

A Time-Dependent Viscoelastic Cohesive Zone Model and Inversion Method for Analyzing Interface Damage of Embedded Tram Track 嵌入式有轨电车轨道界面损伤分析的粘弹性粘聚区模型及反演方法

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-04-13 DOI: 10.1111/ffe.14636

Jia Li, Yao Shan, Yu Yan, Shunhua Zhou, Xiaoping Ji, Zhiqiang Shu

{"title":"A Time-Dependent Viscoelastic Cohesive Zone Model and Inversion Method for Analyzing Interface Damage of Embedded Tram Track","authors":"Jia Li, Yao Shan, Yu Yan, Shunhua Zhou, Xiaoping Ji, Zhiqiang Shu","doi":"10.1111/ffe.14636","DOIUrl":"https://doi.org/10.1111/ffe.14636","url":null,"abstract":"<div>\u0000 \u0000 <p>The cohesive failure between the asphalt pavement and the rail wrapping material around the tram track is the one diseases of the new embedded tram track structure. A time-dependent viscoelastic cohesive zone model (CZM) was employed to characterize interface behavior between asphalt pavement and rail wrapping materials. By integrating Maxwell rheological elements into a bilinear CZM framework, the model captures time-dependent traction–separation behavior. Key features include distinct stiffness evolution during elastic deformation and relaxation-driven traction variations under different loading rates (10–300 mm/min). An Elman neural network surrogate model was developed to inversely identify five critical interface parameters from experimental load–displacement curves, achieving high accuracy (RMSE: 0.0143–0.2384, <i>R</i><sup>2</sup> > 0.9). Validation via interface pull-off test demonstrated strong agreement between simulated and experimental results, confirming the model's efficacy in predicting viscoelastic interface degradation. This framework provides a robust tool for analyzing time-sensitive cohesive failures in urban rail infrastructure.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 7","pages":"2894-2907"},"PeriodicalIF":3.1,"publicationDate":"2025-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144214155","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 Build Orientation on the Fatigue Limit of CX Steel by Laser Powder Bed Fusion 构筑取向对CX钢激光粉末床熔合疲劳极限的影响

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-04-10 DOI: 10.1111/ffe.14645

Mattia Mele, Dario Croccolo, Massimiliano De Agostinis, Stefano Fini, Zlatan Šoškić, Nebojsa Bogojevic, Snezana Ciric-Kostic, Giorgio Olmi

{"title":"Effect of Build Orientation on the Fatigue Limit of CX Steel by Laser Powder Bed Fusion","authors":"Mattia Mele, Dario Croccolo, Massimiliano De Agostinis, Stefano Fini, Zlatan Šoškić, Nebojsa Bogojevic, Snezana Ciric-Kostic, Giorgio Olmi","doi":"10.1111/ffe.14645","DOIUrl":"https://doi.org/10.1111/ffe.14645","url":null,"abstract":"<p>The effect of part build orientation on the fatigue properties of additively manufactured parts has been demonstrated to be highly influenced by the type or composition of the raw material. In this study, an experimental campaign was carried out to investigate this effect in the case of CX maraging steel processed by laser powder bed fusion. For this purpose, specimens were manufactured with vertical, horizontal, and 45° inclined orientations. First, the dimensional accuracy, surface finishing, density, and hardness of specimens were characterized to determine the role of part build orientation. Then, the specimens were tested to determine the fatigue curve and limit. Finally, the fracture region was observed via scanning electron microscope. The results reveal that the effect of build orientation on the fatigue strength in the finite life domain is not statistically significant. Conversely, the build orientation affects the achievable surface finishing of parts after machining and, consequently, the fatigue limit of the material. The highest fatigue resistance is observed in specimens inclined at 45°, while vertical specimens showed the lowest limit.</p>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 7","pages":"2883-2893"},"PeriodicalIF":3.1,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ffe.14645","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144213806","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

Estimation of Fracture Parameters for Cracked Mindlin–Reissner Plates by a Hierarchical Quadrature Element Method 用层次正交元法估计裂纹Mindlin-Reissner板断裂参数

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-04-09 DOI: 10.1111/ffe.14642

Wei Xiang, Lisong Tan, Sihua Hu, Bo Liu

{"title":"Estimation of Fracture Parameters for Cracked Mindlin–Reissner Plates by a Hierarchical Quadrature Element Method","authors":"Wei Xiang, Lisong Tan, Sihua Hu, Bo Liu","doi":"10.1111/ffe.14642","DOIUrl":"https://doi.org/10.1111/ffe.14642","url":null,"abstract":"<div>\u0000 \u0000 <p>This paper presents an integration of the hierarchical quadrature element method (HQEM), characterized by <i>p</i>-convergence, with the virtual crack closure method (VCCM) for evaluating stress resultant intensity factors of through-cracked plates. A HQEM formulation, free from shear locking and applicable to both thin and moderately thick plates, is developed based on the Mindlin–Reissner plate theory. Building upon the conventional framework of VCCM, a universal formula for calculating fracture parameters is derived for the proposed element formulation with an arbitrary number of boundary nodes. Both the calculation formula and its corresponding numerical implementation are simple and straightforward. Several representative numerical examples demonstrate the accuracy and effectiveness of combining HQEM and VCCM for fracture parameter calculation in through-cracked plates. Furthermore, the results indicate that a relatively coarse mesh is sufficient to obtain highly accurate moment and shear force intensity factors for cracked plates, whether thin or thick, thereby greatly simplifying the preprocessing procedure.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 7","pages":"2868-2882"},"PeriodicalIF":3.1,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144214042","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

Improving Fatigue Resistance of Threaded Fasteners Using a Novel Mathematical Model for Selecting Optimal Nut Pitch Value 用一种新的选择最佳螺距值的数学模型提高螺纹紧固件的抗疲劳性能

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-04-09 DOI: 10.1111/ffe.14639

Xi Liu, Salim Abid, Meng Li, Yaowen Kang

{"title":"Improving Fatigue Resistance of Threaded Fasteners Using a Novel Mathematical Model for Selecting Optimal Nut Pitch Value","authors":"Xi Liu, Salim Abid, Meng Li, Yaowen Kang","doi":"10.1111/ffe.14639","DOIUrl":"https://doi.org/10.1111/ffe.14639","url":null,"abstract":"<div>\u0000 \u0000 <p>Threaded fasteners are prone to fatigue fracture under axial alternative load conditions. Recent studies demonstrated that the pitch difference between bolt and nut can significantly impact the fatigue life. Currently most standards specify equal nominal pitch for bolt and nut that can be one of the reasons of their low fatigue resistance. Choosing optimal pitch difference value can enhance fasteners durability. However, the exact relationship between the pitch difference and the fatigue life remains unclear. This study analytically demonstrates that the relationship between stress concentration level under static load and the pitch difference follows inverse normal distribution. Then, based on the experiments under alternative load, we divided fatigue life into two stages: the initial fatigue life and the residual fatigue life. The results show that the stress concentration level and initial fatigue life exhibit a geometrically inverse relationship, i.e., when the stress concentration is minimized, initial fatigue life is maximized. Finally, we propose a novel mathematical model based on the pitch difference–stress concentration level–fatigue life relationship. The model offers a practical solution for improving fatigue resistance in engineering applications without incurring any additional cost.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 7","pages":"2848-2867"},"PeriodicalIF":3.1,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144214041","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

Clarification of Fatigue Fracture Mechanism on Overlap Friction Stir Welding (FSW) Joints of A5052 Aluminum Alloys A5052铝合金重叠搅拌摩擦焊接头疲劳断裂机理的澄清

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-04-09 DOI: 10.1111/ffe.14644

Jinta Arakawa, Shota Ban, Yuki Ogawa, Eitaro Yukutake

引用次数: 0

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

引用次数: 0

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}

引用次数: 0

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}

引用次数: 0

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}

引用次数: 0

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

引用次数: 0