Fatigue & Fracture of Engineering Materials & Structures最新文献_第4页

Assessment of fracture criteria for cracking behavior of asphalt concrete using various SCB specimen sizes 使用不同尺寸的 SCB 试样评估沥青混凝土开裂行为的断裂标准

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2024-08-29 DOI: 10.1111/ffe.14416

Ramin Momeni, Sadjad Pirmohammad

{"title":"Assessment of fracture criteria for cracking behavior of asphalt concrete using various SCB specimen sizes","authors":"Ramin Momeni, Sadjad Pirmohammad","doi":"10.1111/ffe.14416","DOIUrl":"https://doi.org/10.1111/ffe.14416","url":null,"abstract":"In this research, five fracture criteria (maximum tangential stress (MTS), generalized maximum tangential stress (GMTS), minimum strain energy density (SED), generalized minimum strain energy density (GSED), and modified maximum tangential stress (MMTS)) were evaluated for asphalt concrete using fracture data from tests conducted under various loading modes and conditions. Tests were performed on semi-circular bend (SCB) specimens of various sizes. Based on the results, the MTS criterion tends to overestimate fractures, while the GMTS criterion exhibits more precise predictions. The SED and GSED criteria inaccurately predict fractures, especially under certain loading conditions. The MMTS criterion shows superior predictive capability for asphalt concrete fractures. Specimen size influences fracture resistance, with larger specimens exhibiting higher fracture values. Overall, the MMTS criterion closely mirrors the crack growth behavior of asphalt concrete, highlighting its precision in predicting fracture results. The errors between the predictions of the fracture criteria MTS, GMTS, SED, GSED, and MMTS, and the experimental results ranged from 0% to 42.8%, 0% to 22.5%, 0% to 52.7%, 0% to 42.4%, and 0% to 14.5%, respectively.","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"47 11","pages":"4269-4291"},"PeriodicalIF":3.1,"publicationDate":"2024-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142430283","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 life prediction of notched components based on energy gradient using reconstructed critical distance theory 利用重构临界距离理论，基于能量梯度预测缺口部件的疲劳寿命

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2024-08-28 DOI: 10.1111/ffe.14432

Jumei Lu, Jianhui Liu, Fei Zhou, Xuemei Pan, Wenjun Kou, Youtang Li, Shengchuan Wu

引用次数: 0

Experimental investigations on normal mode nodes as support positions of a resonant testing facility for bending fatigue tests 将正常模式节点作为弯曲疲劳试验共振测试设备支撑位置的实验研究

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2024-08-28 DOI: 10.1111/ffe.14412

Clara Schramm, Dennis Birkner, Sebastian Schneider, Steffen Marx

{"title":"Experimental investigations on normal mode nodes as support positions of a resonant testing facility for bending fatigue tests","authors":"Clara Schramm, Dennis Birkner, Sebastian Schneider, Steffen Marx","doi":"10.1111/ffe.14412","DOIUrl":"https://doi.org/10.1111/ffe.14412","url":null,"abstract":"Large-scale fatigue testing is very important to the research on scale effects, which occur in large cyclic loaded structures, such as wind turbine towers. However, such experimental testing has a very high energy consumption. As an efficient alternative, this paper presents a new resonant testing facility for large-scale specimens under cyclic bending loads. The facility works as a 4-point bending test, in which the specimen is supported in the nodes of its first normal bending mode, where theoretically no reaction forces occur. Two counter-rotating imbalance motors with excitation frequencies near resonance generate a harmonic force acting on the specimen. Experimental trial fatigue tests on a steel pipe as a specimen were carried out, in order to validate the new testing setup. A great decrease in the support forces was reached by placing the supports at the normal mode nodes. Additionally, the behavior of the support forces under varying positions and excitation frequencies was also investigated. In summary, the resonant testing method combined with the supports at the normal mode nodes offers an efficient and energy-saving testing setup for large-scale fatigue tests.","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"47 11","pages":"4214-4227"},"PeriodicalIF":3.1,"publicationDate":"2024-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ffe.14412","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142430342","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

Experimental and numerical determination of the fatigue notch factor in as-built wire arc additive manufacturing steel components 用实验和数值方法确定现成线弧快速成型制造钢部件的疲劳缺口系数

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2024-08-28 DOI: 10.1111/ffe.14430

Davide Leonetti, Elena Zancato, Giovanni Meneghetti, Johan Maljaars

{"title":"Experimental and numerical determination of the fatigue notch factor in as-built wire arc additive manufacturing steel components","authors":"Davide Leonetti, Elena Zancato, Giovanni Meneghetti, Johan Maljaars","doi":"10.1111/ffe.14430","DOIUrl":"https://doi.org/10.1111/ffe.14430","url":null,"abstract":"Parts manufactured by wire arc additive manufacturing (WAAM) are characterized by a peculiar surface morphology, namely, surface waviness, that negatively affects the fatigue performance. To exploit the full potential of WAAM and minimize the need for postproduction work, it is crucial to utilize the components in the as-built state. This is because conventional machining techniques, typically employed for postprocessing operations, severely curtail the freedom of geometry of the components. This study focuses on an experimental and numerical characterization of the notch effect of the surface waviness for an AISI 308 LSi stainless steel. This is done by quantifying the fatigue notch factor in a probabilistic fashion, considering the results of ad-hoc designed fatigue tests. A finite element model is developed by considering a 3D scan of the geometry of WAAMed plates, allowing to determine the theoretical stress concentration factor. The fatigue notch factor is also estimated from the numerical model by making use of the gradient correction according to the FKM guidelines. To validate the numerical approach, test data produced for different testing conditions are correlated by using the local stress approach, showing that classical methods are also applicable to additive manufactured parts.","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"47 11","pages":"4372-4389"},"PeriodicalIF":3.1,"publicationDate":"2024-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ffe.14430","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142430344","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

Plastic damage fracture characteristics and constitutive modeling of rocks under uniaxial compression considering crack geometry 考虑裂缝几何形状的单轴压缩下岩石的塑性破坏断裂特征和构造模型

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2024-08-26 DOI: 10.1111/ffe.14425

Hongtao Xu, Tingye Qi, Guorui Feng, Tian Qiu, Haochen Wang, Linfei Wang, Zhicheng Zhang, Siyuan Cheng

{"title":"Plastic damage fracture characteristics and constitutive modeling of rocks under uniaxial compression considering crack geometry","authors":"Hongtao Xu, Tingye Qi, Guorui Feng, Tian Qiu, Haochen Wang, Linfei Wang, Zhicheng Zhang, Siyuan Cheng","doi":"10.1111/ffe.14425","DOIUrl":"https://doi.org/10.1111/ffe.14425","url":null,"abstract":"The study of damage and failure in fractured rock masses is crucial. This study employs the representative volume element (RVE) method to develop a microscale rock model. The model simulates the propagation and rupture of fractures by integrating factors including actual mineralogical composition, the Weibull distribution function, the Mohr–Coulomb damage criterion, and strain softening. Results indicate that fractures reduce the uniaxial compressive strength of the rock and that peak strength is significantly correlated with crack geometries. Plastic damage in rocks was categorized into three stages: elastic, rapid growth, and postpeak softening. A logistic growth model describes the plastic volume change curves for rocks with various fracture geometries, establishing the relationship between plastic damage volume and damage variables. Constitutive models for rocks with varying fracture geometries under uniaxial compression were formulated. The accuracy and applicability of these models were validated, providing a theoretical basis for rock engineering applications.","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"47 11","pages":"4196-4213"},"PeriodicalIF":3.1,"publicationDate":"2024-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142430181","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

Phase field modeling for composite material failure 复合材料失效的相场建模

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2024-08-26 DOI: 10.1111/ffe.14429

Yuanfeng Yu, Chi Hou, Xiaoya Zheng, Meiying Zhao

引用次数: 0

On the notch sensitivity of as-built Laser Beam Powder Bed–Fused AlSi10Mg specimens subjected to Very High Cycle Fatigue tests at ultrasonic frequency up to 109 cycles 在超声波频率高达 109 次循环的超高循环疲劳试验中，对原样激光束粉末床熔融 AlSi10Mg 试样进行缺口敏感性测试

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2024-08-23 DOI: 10.1111/ffe.14419

Andrea Tridello, Carlo Boursier Niutta, Alessandro Benelli, Ana Paula Pagnoncelli, Massimo Rossetto, Filippo Berto, Davide Salvatore Paolino

{"title":"On the notch sensitivity of as-built Laser Beam Powder Bed–Fused AlSi10Mg specimens subjected to Very High Cycle Fatigue tests at ultrasonic frequency up to 109 cycles","authors":"Andrea Tridello, Carlo Boursier Niutta, Alessandro Benelli, Ana Paula Pagnoncelli, Massimo Rossetto, Filippo Berto, Davide Salvatore Paolino","doi":"10.1111/ffe.14419","DOIUrl":"https://doi.org/10.1111/ffe.14419","url":null,"abstract":"The notch effect significantly influences the fatigue response of components and is particularly relevant for parts produced with additive manufacturing (AM) processes, characterized by complex geometries and possible geometric discontinuities inducing local and critical peak stresses. Moreover, the low surface quality, as well as manufacturing defects and residual stresses, interacts with the local peak stress induced by geometric discontinuities, complicating the assessment of the notch effect for AM parts and requiring extensive experimental fatigue investigations. In the present paper, the notch sensitivity of as-built AlSi10Mg specimens produced with the laser beam powder bed fusion in the Very High Cycle Fatigue regime is investigated. Ultrasonic fatigue tests up to 109 cycles have been carried out on rectangular bars and rectangular bars with a central through-thickness hole. The notch effect has been found to significantly affect the fatigue response of the investigated AlSi10Mg specimens, with surface defects having a main role and pointing out the influence of the surface quality on the crack formation.","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"47 11","pages":"4356-4371"},"PeriodicalIF":3.1,"publicationDate":"2024-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ffe.14419","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142430143","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

Low cycle fatigue behavior of AZ31 magnesium alloy joined by friction stir welding 通过搅拌摩擦焊连接的 AZ31 镁合金的低循环疲劳行为

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2024-08-23 DOI: 10.1111/ffe.14411

Murat Türkan, Özler Karakaş, Filippo Berto

引用次数: 0

Overhead conductor heating chamber and temperature effects on the fatigue life of aluminum alloy 6201-T81 conductors 架空导体加热室和温度对铝合金 6201-T81 导体疲劳寿命的影响

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2024-08-21 DOI: 10.1111/ffe.14421

Ricardo Lenon Da Silva Rodrigues, Miguel Angel Garcia, José Alexander Araújo, Jorge Luiz De Almeida Ferreira, Cosme Roberto Moreira da Silva, Remy Kalombo Badibanga

引用次数: 0

Physical description and model validation of welded joint fatigue damage evolution 焊接接头疲劳损伤演变的物理描述和模型验证

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2024-08-18 DOI: 10.1111/ffe.14426

Guoqian Wei, You Zhao, Ruochen Duan, Zhang Dang, Zhiwen Lu

引用次数: 0