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Experimental and Simulation Study on Fatigue Damage Characteristics of HNBR by HTHP Aging in Oil-Based Mud Environment
IF 3.1 2区 材料科学
Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2024-12-17 DOI: 10.1111/ffe.14540
Gang Hu, Jie Deng, Guorong Wang, Kai Tang, Guohui Ren, Xinming Wen
{"title":"Experimental and Simulation Study on Fatigue Damage Characteristics of HNBR by HTHP Aging in Oil-Based Mud Environment","authors":"Gang Hu,&nbsp;Jie Deng,&nbsp;Guorong Wang,&nbsp;Kai Tang,&nbsp;Guohui Ren,&nbsp;Xinming Wen","doi":"10.1111/ffe.14540","DOIUrl":"https://doi.org/10.1111/ffe.14540","url":null,"abstract":"<div>\u0000 \u0000 <p>Hydrogenated nitrile butyl rubber (HNBR) elastomers are widely used in high-temperature and high-pressure (HTHP) corrosive environments, especially in the oil and gas sector. However, fatigue failure, which is often encountered in rubber components, remains a critical issue. In this paper, the effect of HTHP aging on the fatigue damage characteristics of HNBR in an oil-based mud environment is investigated through experiments and numerical simulations. The experimental results showed that the elongation at break of the specimens decreased by 260% and the compressive stiffness increased with strain after high-temperature and high-pressure exposure in the oil-based mud. Furthermore, tear tests showed that the rate at which the aged HNBR produced unit crack surfaces was significantly accelerated. Finally, the fracture and fatigue crack extension simulation results show the similarity between the damage evolution law of HNBR materials and the stress–strain curve of typical rubber materials.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 3","pages":"1151-1165"},"PeriodicalIF":3.1,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143115970","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 Behavior Investigation of Uniaxially Prestrained Aluminum Alloy 2024-T4
IF 3.1 2区 材料科学
Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2024-12-13 DOI: 10.1111/ffe.14531
V. K. Yadav, I. V. Singh
{"title":"Fatigue Behavior Investigation of Uniaxially Prestrained Aluminum Alloy 2024-T4","authors":"V. K. Yadav,&nbsp;I. V. Singh","doi":"10.1111/ffe.14531","DOIUrl":"https://doi.org/10.1111/ffe.14531","url":null,"abstract":"","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 3","pages":"1123-1136"},"PeriodicalIF":3.1,"publicationDate":"2024-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143114695","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
Compared Influence of a Lubricant on Mode I and Mode II Fatigue Crack Growth Kinetics in a Gear Steel
IF 3.1 2区 材料科学
Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2024-12-13 DOI: 10.1111/ffe.14541
Véronique Doquet, Maël Zaid, Vincent Bonnand, Didier Pacou, Vincent Chiaruttini, Pierre Depouhon
{"title":"Compared Influence of a Lubricant on Mode I and Mode II Fatigue Crack Growth Kinetics in a Gear Steel","authors":"Véronique Doquet,&nbsp;Maël Zaid,&nbsp;Vincent Bonnand,&nbsp;Didier Pacou,&nbsp;Vincent Chiaruttini,&nbsp;Pierre Depouhon","doi":"10.1111/ffe.14541","DOIUrl":"https://doi.org/10.1111/ffe.14541","url":null,"abstract":"<div>\u0000 \u0000 <p>The influence of a helicopter gearbox lubricant on Mode I or Mode II fatigue crack growth in 16NCD13 steel was characterized through tests performed on single-edge notched tensile samples loaded in tension–compression and on cruciform samples submitted to reversed shear plus static biaxial compression, respectively. In Mode I, the lubricant reduced the growth rate at low Δ<i>K</i><sub>I</sub> and increased the threshold \u0000<span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <mi>ΔK</mi>\u0000 </mrow>\u0000 <annotation>$$ varDelta K $$</annotation>\u0000 </semantics></math>, while in Mode II, it accelerated crack growth at low Δ<i>K</i><sub>II</sub><sup>effective</sup>, which was not only due to a reduction in crack face friction. The upward convective flow of lubricant carrying debris exuding from the crack, a modification in oil aspect and properties, and chemical analyses near the crack front suggest that a temperature-induced degradation of the lubricant leads to a corrosive attack of the metal, which accelerates crack growth. A tribologically transformed structure is observed along the lips of cracks grown in Mode II with normal compression in oil.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 3","pages":"1137-1150"},"PeriodicalIF":3.1,"publicationDate":"2024-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143114696","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 Sequential Multiaxial Cycle Counting Algorithm Based on the Modified Wang–Brown Method
IF 3.1 2区 材料科学
Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2024-12-11 DOI: 10.1111/ffe.14537
Shiyue Zhang, Hao Wu
{"title":"A Sequential Multiaxial Cycle Counting Algorithm Based on the Modified Wang–Brown Method","authors":"Shiyue Zhang,&nbsp;Hao Wu","doi":"10.1111/ffe.14537","DOIUrl":"https://doi.org/10.1111/ffe.14537","url":null,"abstract":"<div>\u0000 \u0000 <p>Rainflow algorithm is an essential and reasonable method for multiaxial fatigue damage calculation in nonproportional (NP) load histories. The modified Wang–Brown (MWB) method is proposed by Meggiolaro and Castro, which corrects the problem of neglecting the most damaging event in the Wang–Brown method. An example in the paper explains the specific process of MWB multiaxial rainflow counting. Additionally, a modified pseudocode is presented to efficiently implement loading counting, ensuring it follows the same sequence as the original load histories. Based on the count results and fatigue damage accumulation rule, a new multiaxial life prediction method is proposed. The efficiency of the proposed method is validated by reasonable correlations with the experimental data from 316L steel tubular specimens subjected to various multiaxial fatigue loadings.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 3","pages":"1112-1122"},"PeriodicalIF":3.1,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143114206","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 Hybrid Neural Network–Based Approach to Predict Crack Propagation Paths
IF 3.1 2区 材料科学
Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2024-12-10 DOI: 10.1111/ffe.14514
Zekai Huang, Qida Liu, Ran Liu, Dongdong Chang, Xiaofa Yang, Hong Zuo, Yingxuan Dong
{"title":"A Hybrid Neural Network–Based Approach to Predict Crack Propagation Paths","authors":"Zekai Huang,&nbsp;Qida Liu,&nbsp;Ran Liu,&nbsp;Dongdong Chang,&nbsp;Xiaofa Yang,&nbsp;Hong Zuo,&nbsp;Yingxuan Dong","doi":"10.1111/ffe.14514","DOIUrl":"https://doi.org/10.1111/ffe.14514","url":null,"abstract":"<div>\u0000 \u0000 <p>A data-driven method based on a hybrid neural network (HNet) model is proposed to predict the crack propagation path. Using images as input enables the HNet model to predict crack propagation paths for different structures and defect types. To validate the effectiveness of this method, crack propagation paths on holed plates are investigated. The HNet model is trained to approximate the nonlinear relationship between the structural geometric parameters and the crack propagation paths. The feasibility of this method is verified by comparing the prediction results of the HNet model with the finite element calculation results. Furthermore, explainable artificial intelligence enhances the transparency of the HNet model, increasing its credibility. The challenge of data acquisition is effectively addressed by active learning, reducing the required training data volume. This method provides a fresh insight into the path prediction of crack growth problems.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 3","pages":"1098-1111"},"PeriodicalIF":3.1,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143114095","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
Elastoplastic Crack Initiation Behavior of Unsaturated Rock Fractures (Cavities) With Asymmetric Hole-Edge Cracks Under Gas-Ice Pressure
IF 3.1 2区 材料科学
Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2024-12-09 DOI: 10.1111/ffe.14536
Wenhua Chen, Tian Xiang
{"title":"Elastoplastic Crack Initiation Behavior of Unsaturated Rock Fractures (Cavities) With Asymmetric Hole-Edge Cracks Under Gas-Ice Pressure","authors":"Wenhua Chen,&nbsp;Tian Xiang","doi":"10.1111/ffe.14536","DOIUrl":"https://doi.org/10.1111/ffe.14536","url":null,"abstract":"<div>\u0000 \u0000 <p>Current research on frost heave-induced cracking in fractures of rock masses in cold regions typically assumes that fractures are fully saturated. However, in actual engineering practice, rock mass fractures are often in an unsaturated state. Upon freezing, the fracture surfaces are subjected to a complex combination of gas pressure, freezing pressure, and ice friction forces. This study investigates the crack initiation mechanisms of unsaturated rock fractures with asymmetric edge cracks under gas-ice pressure conditions. Assuming a small yield range, we derive the calculation formulas for gas pressure after freezing, stress intensity factor, crack initiation angle, and crack initiation stress based on the complex variable function and elastic-plastic crack mechanics theory. Additionally, an improved phase-field model is proposed for calculating dynamic crack propagation in mixed-mode I-II fractures, with key parameters analyzed and discussed. The results demonstrate that: By comparing the analytical solutions with numerical calculations, the validity of the proposed model is verified. During the freezing process, dynamic crack propagation in unsaturated fractures will exhibit bifurcation. At higher water saturation levels, crack propagation shows a pattern of initial bifurcation followed by subsequent merging.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 3","pages":"1066-1082"},"PeriodicalIF":3.1,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143113344","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
Comparing Different Procedures for Calculating Flexural Cracking Toughness Using Edge-Notched Disc Bend Specimen Under Modes I and III
IF 3.1 2区 材料科学
Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2024-12-09 DOI: 10.1111/ffe.14530
Seyed Omid Hoseini, Mohammad Reza Sohrabi, Seyed Roohollah Mousavi, Mohammad Ghasemi, M. R. M. Aliha
{"title":"Comparing Different Procedures for Calculating Flexural Cracking Toughness Using Edge-Notched Disc Bend Specimen Under Modes I and III","authors":"Seyed Omid Hoseini,&nbsp;Mohammad Reza Sohrabi,&nbsp;Seyed Roohollah Mousavi,&nbsp;Mohammad Ghasemi,&nbsp;M. R. M. Aliha","doi":"10.1111/ffe.14530","DOIUrl":"https://doi.org/10.1111/ffe.14530","url":null,"abstract":"<div>\u0000 \u0000 <p>This research used 30%, 40%, 50%, and 60% coarse aggregates and 0.15%, 0.3%, and 0.45% wavy steel fibers to make end-notched disc bend self-compacting concrete specimens for calculating and comparing flexural cracking toughness index by ASTM C1609, JSCE SF-4, and JG/T 472-2015 methods under pure modes I and III. The variation trends of different procedures under pure mode I was more affected by coarse aggregates and fibers had no noticeable influence. But under pure mode III increasing both fibers and aggregates improved the flexural cracking toughness. The estimation of JG/T 472-2015 method was better than other methods under pure mode I. In pure mode III, due to positive effect of fibers on the pre-peak, peak, and post-peak areas, the deflection exceeds 1 mm. Hence, calculating the area under the load–displacement curve is facilitated for the ASTM C1609 and JSCE SF-4 methods up to <i>L</i>/150 deflections.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 3","pages":"1083-1097"},"PeriodicalIF":3.1,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143113395","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
Review on the Fatigue Strength of Additively Manufactured Metal Materials Under the Very High Cycle Fatigue
IF 3.1 2区 材料科学
Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2024-12-07 DOI: 10.1111/ffe.14532
J. Henrique Lopes, Pedro R. da Costa, Manuel Freitas, Luís Reis
{"title":"Review on the Fatigue Strength of Additively Manufactured Metal Materials Under the Very High Cycle Fatigue","authors":"J. Henrique Lopes,&nbsp;Pedro R. da Costa,&nbsp;Manuel Freitas,&nbsp;Luís Reis","doi":"10.1111/ffe.14532","DOIUrl":"https://doi.org/10.1111/ffe.14532","url":null,"abstract":"<div>\u0000 \u0000 <p>The primary goal of this systematic literature review is to identify, characterize, and make a comprehensive analysis of the available research on the fatigue strength of additively manufactured (AMed) metal materials when subjected to loading cycles that exceed the preconceptualized fatigue limit (\u0000<span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <msup>\u0000 <mn>10</mn>\u0000 <mn>7</mn>\u0000 </msup>\u0000 </mrow>\u0000 <annotation>$$ {10}&amp;#x0005E;7 $$</annotation>\u0000 </semantics></math> cycles) and the very high cycle fatigue (VHCF) regime. Considering the inherent complexity and magnitude of influential variables present in AM metal processes, this paper explores in-depth the relevant conclusions taken by theoretical/experimental studies and their respective results of several AMed materials in the VHCF regime. The present review focuses on key research topics of metal AM fatigue strength, such as crack initiation and failure mechanisms, examining the influence of microstructure and defects, the effect of the input process parameters, postprocessing methods, and the influence of testing conditions on fatigue strength.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 3","pages":"979-1000"},"PeriodicalIF":3.1,"publicationDate":"2024-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143112581","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
In-Depth Residual Stress Evolution of Surface-Rolled Titanium Alloy Subjected to Fretting Fatigue
IF 3.1 2区 材料科学
Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2024-12-05 DOI: 10.1111/ffe.14527
Ni Ao, Feng Pan, Daoxin Liu, Shengchuan Wu
{"title":"In-Depth Residual Stress Evolution of Surface-Rolled Titanium Alloy Subjected to Fretting Fatigue","authors":"Ni Ao,&nbsp;Feng Pan,&nbsp;Daoxin Liu,&nbsp;Shengchuan Wu","doi":"10.1111/ffe.14527","DOIUrl":"https://doi.org/10.1111/ffe.14527","url":null,"abstract":"","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 3","pages":"1364-1368"},"PeriodicalIF":3.1,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143112011","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
Crack Propagation Behavior of Single-Crystal Titanium Under Cyclic Loading: A Molecular Dynamics Study
IF 3.1 2区 材料科学
Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2024-12-05 DOI: 10.1111/ffe.14534
Le Chang, Dalin Zheng, Hongpeng Xie, Xinran Liu, Jinling Zhao, Changyu Zhou
{"title":"Crack Propagation Behavior of Single-Crystal Titanium Under Cyclic Loading: A Molecular Dynamics Study","authors":"Le Chang,&nbsp;Dalin Zheng,&nbsp;Hongpeng Xie,&nbsp;Xinran Liu,&nbsp;Jinling Zhao,&nbsp;Changyu Zhou","doi":"10.1111/ffe.14534","DOIUrl":"https://doi.org/10.1111/ffe.14534","url":null,"abstract":"<div>\u0000 \u0000 <p>In this study, molecular dynamics (MD) simulations were employed to investigate the crack propagation behavior of single-crystal titanium with various crystal orientations under cyclic loading. The analysis demonstrates that each crack model displays temporary cyclic hardening and predominant cyclic softening characteristics. The orientation of crack propagation primarily impacts the characteristics of the softening stage, with less influence on the initial hardening stage. A notable orientation correlation is evident in the mechanism of crack propagation, characterized by the presence of various slip modes and deformation twinning (DT) systems. The crack tip deformation behavior obtained from the simulation aligns with the theoretical predictions of linear elastic fracture mechanics (LEFM). The crack growth rate (CGR) and Δ<i>J</i> for different crack models show good correlation, and both the crack propagation direction and crack plane orientation affect the characteristics of the Δ<i>J</i>–<i>da</i>/<i>dN</i> curves.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 3","pages":"1050-1065"},"PeriodicalIF":3.1,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143112010","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
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