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

Multi-Dimensional Influence Surface-Based Analysis on Fatigue Strength of Semi-Open-Rib to Deck Welded Joints in OBD OBD半开肋与甲板焊接接头疲劳强度的多维影响面分析

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-05-07 DOI: 10.1111/ffe.14662

Haibo Yang, Ping Wang, Hongliang Qian

引用次数: 0

Mechanisms of Wind-Induced Vibration Fatigue Fracture in Large Cylindrical–Conical Steel Cooling Towers 大型圆柱锥钢冷却塔风致振动疲劳断裂机理研究

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-05-06 DOI: 10.1111/ffe.14668

Hongxin Wu, Shitang Ke, Hao Wang, Wenxin Tian, Feitian Wang, Tongguang Wang

{"title":"Mechanisms of Wind-Induced Vibration Fatigue Fracture in Large Cylindrical–Conical Steel Cooling Towers","authors":"Hongxin Wu, Shitang Ke, Hao Wang, Wenxin Tian, Feitian Wang, Tongguang Wang","doi":"10.1111/ffe.14668","DOIUrl":"https://doi.org/10.1111/ffe.14668","url":null,"abstract":"<div>\u0000 \u0000 <p>Steel cooling towers, with their lighter weight, greater flexibility, and lower damping, are more susceptible to wind-induced damage compared to hyperbolic concrete towers. This study investigates the fatigue fracture mechanisms of cylindrical–conical steel cooling towers (CCSCTs) under high wind loads. Large eddy simulation (LES) techniques determine the three-dimensional (3D) wind load distribution, and a 3D finite element model incorporating elastoplastic material damage is developed in LS-DYNA to simulate the wind-induced collapse process. Results reveal a critical wind speed of 52 m/s, with failure mechanisms driven by interlayer translation and cross-sectional deformation. The stiffening trusses restrict section deformation but concentrate internal forces, while the auxiliary trusses mitigate these forces and provide stability. Key fracture zones include the conical section top (72°, −108°) and tower top (0°) for tension and tower top (±12°) for compression. These findings provide the ultimate limit state (ULS) design criteria for CCSCTs.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 8","pages":"3240-3254"},"PeriodicalIF":3.1,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144598199","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 Nonequilibrium Thermodynamics-Based Model to Predict Fatigue Failure in Particle-Reinforced Metal Matrix Composites 基于非平衡热力学的颗粒增强金属基复合材料疲劳失效预测模型

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-05-06 DOI: 10.1111/ffe.14671

Shashwat Srivastava, Abhishek Tevatia

{"title":"A Nonequilibrium Thermodynamics-Based Model to Predict Fatigue Failure in Particle-Reinforced Metal Matrix Composites","authors":"Shashwat Srivastava, Abhishek Tevatia","doi":"10.1111/ffe.14671","DOIUrl":"https://doi.org/10.1111/ffe.14671","url":null,"abstract":"<div>\u0000 \u0000 <p>The presented fatigue crack growth (FCG) life prediction model for particle-reinforced metal matrix composites (MMCs) leverages nonequilibrium thermodynamics to characterize the life cycle of crack growth. The model uses an energy balance approach to evaluate FCG rates, focusing on the specific dissipated plastic energy per unit area within the cyclic plastic zone (CPZ), quantified as the area under the cyclic stress–strain curve. The model includes microstructural parameters through strengthening mechanisms, enhancing the model's accuracy. The closed-form analytical solution shows strong alignment with the experimental data across various particle-reinforced MMCs, thereby providing reliable FCG life predictions. The key microstructural parameters, including strain amplitude, hardening exponent, strength coefficient, and particle volume fraction, affect the fatigue life and crack propagation resistance. Polar plots of strain amplitude variations further provide insight into the crack propagation around the CPZ, highlighting the influence of microstructural parameters on crack growth.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 8","pages":"3255-3268"},"PeriodicalIF":3.1,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144598200","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

Reliability-Based CCF Damage Analysis for Gas Turbine Blade With Thermal Barrier Coatings 基于可靠性的燃气轮机热障涂层叶片CCF损伤分析

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-05-01 DOI: 10.1111/ffe.14666

Changping Dai, Peng Yue, Yu Sun, Mohammad Yazdi, Junfu Zhang

{"title":"Reliability-Based CCF Damage Analysis for Gas Turbine Blade With Thermal Barrier Coatings","authors":"Changping Dai, Peng Yue, Yu Sun, Mohammad Yazdi, Junfu Zhang","doi":"10.1111/ffe.14666","DOIUrl":"https://doi.org/10.1111/ffe.14666","url":null,"abstract":"<div>\u0000 \u0000 <p>In this work, a dynamic surrogate modeling approach is presented for reliability analysis of turbine blades with thermal barrier coatings (TBCs) under combined high and low cycle fatigue (CCF) loadings. Initially, a three-dimensional model encompassing TBCs, turbine blades and flow fields is built to investigate the stress distribution at turbine blade surface using numerical analysis method of fluid–thermal–solid coupling. Following that, an improved seagull optimization algorithm-based backpropagation neural network (ISOA-BPNN) is developed by integrating the strengths of seagull optimization algorithm (SOA) and BP neural network. Furthermore, the probabilistic CCF estimation of turbine blades with TBCs is considered as a numerical case to evaluate the developed approach under the consideration of the uncertainties in material properties and loading conditions. The results reveal that the application of TBCs reduces the maximum stress at the blade mortise position, and the proposed ISOA-BPNN holds great prediction accuracy and computational speed for reliability analysis.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 8","pages":"3227-3239"},"PeriodicalIF":3.1,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144598349","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

Size and Thickness Effects on the Ductile Fracture Toughness of a 316 L(N) Austenitic Stainless Steel in As-Received and Aged Conditions 尺寸和厚度对316l (N)奥氏体不锈钢在接收和时效条件下韧性断裂的影响

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-05-01 DOI: 10.1111/ffe.14665

Sihan Cheng, Jérôme Garnier, Bernard Marini, Yazid Madi, Jacques Besson

{"title":"Size and Thickness Effects on the Ductile Fracture Toughness of a 316 L(N) Austenitic Stainless Steel in As-Received and Aged Conditions","authors":"Sihan Cheng, Jérôme Garnier, Bernard Marini, Yazid Madi, Jacques Besson","doi":"10.1111/ffe.14665","DOIUrl":"https://doi.org/10.1111/ffe.14665","url":null,"abstract":"<p>Measuring ductile fracture toughness for materials requires the specimen size to be large enough for the tests to be valid. The presented work investigates the size related fracture behavior of as-received and aged 316 L(N) stainless steel through an experimental approach. It focuses on the effects of the thickness and size of the specimens on the evaluated toughness. Compact tension (CT) specimens (thicknesses from 4 to 50 mm) and double edge notched tensile (DENT) specimens (thicknesses from 2 to 5 mm) were used. At as-received state, CT tests lead to a nonmonotonic evolution of fracture toughness with a maximum at a critical thickness. At aged state, there is no significant thickness effect as all tests are valid. The essential work of fracture measured with DENT specimens appears to be equivalent to \u0000<span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <msub>\u0000 <mi>J</mi>\u0000 <mn>0.2</mn>\u0000 </msub>\u0000 </mrow>\u0000 <annotation>$$ {J}_{0.2} $$</annotation>\u0000 </semantics></math> and consequently extends the nonmonotonic evolution of the fracture toughness at small thicknesses.</p>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 7","pages":"3168-3184"},"PeriodicalIF":3.1,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ffe.14665","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144213725","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

Quantitative Identification and Prediction of 5182 Aluminum Alloy Clinched Joint Fatigue Life 5182铝合金夹紧接头疲劳寿命定量鉴定与预测

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-05-01 DOI: 10.1111/ffe.14669

Shouyi Guo, Lei Lei, Chunyu Song, Chenyang Ao, Ming Yan, Ye Shi

引用次数: 0

Novel Fatigue Damage Accumulation Rules for Aluminum-Welded Details of Suspension Bridges Under Variable-Amplitude Loading 变幅荷载作用下悬索桥铝焊接细部疲劳损伤累积新规律

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-04-27 DOI: 10.1111/ffe.14650

Bruno Villoria, Sudath C. Siriwardane, Jasna Bogunovic Jakobsen, Luigi Mario Vespoli, Bård Nyhus

{"title":"Novel Fatigue Damage Accumulation Rules for Aluminum-Welded Details of Suspension Bridges Under Variable-Amplitude Loading","authors":"Bruno Villoria, Sudath C. Siriwardane, Jasna Bogunovic Jakobsen, Luigi Mario Vespoli, Bård Nyhus","doi":"10.1111/ffe.14650","DOIUrl":"https://doi.org/10.1111/ffe.14650","url":null,"abstract":"<div>\u0000 \u0000 <p>Two novel damage accumulation rules are proposed for fatigue life prediction of welded details in long-span aluminum bridges, addressing the limitations of existing models, including Miner's rule. These models are developed based on continuum damage mechanics and the sequential law concept combined with the strain energy density, to improve the accuracy under random variable amplitude (VA) loading. They utilize common S-N curves and material parameters. The models are verified through fatigue tests on welded joints from a long-span aluminum bridge under random VA loading, including friction stir welded (FSW) joints, for which no standardized S-N curves are available. Fatigue lives of specimens under random VA loading are predicted using established cumulative damage models and compared with the proposed models. The results demonstrate the improved accuracy of the proposed models under random VA loadings, offering a more reliable approach for fatigue life assessment of welded joints in aluminum bridges.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 7","pages":"3136-3159"},"PeriodicalIF":3.1,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144214205","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 Hole Diameter on the Fatigue Life and Failure Mechanism of Riveted Joints With Different Squeeze Forces 不同挤压力下孔直径对铆接接头疲劳寿命的影响及失效机理

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-04-27 DOI: 10.1111/ffe.14647

Ming Li, Pengcheng Li, Wei Tian, Junshan Hu, Changrui Wang, Wenhe Liao

引用次数: 0

Comparison of Fatigue Life and Strength Models for Defective Materials: Application to Scalmalloy in Different Surface Conditions 缺陷材料疲劳寿命和强度模型的比较：应用于不同表面条件下的鳞状合金

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-04-27 DOI: 10.1111/ffe.14638

Daniel Perghem, Lorenzo Rusnati, Luca Patriarca, Federico Uriati, Stefano Beretta

{"title":"Comparison of Fatigue Life and Strength Models for Defective Materials: Application to Scalmalloy in Different Surface Conditions","authors":"Daniel Perghem, Lorenzo Rusnati, Luca Patriarca, Federico Uriati, Stefano Beretta","doi":"10.1111/ffe.14638","DOIUrl":"https://doi.org/10.1111/ffe.14638","url":null,"abstract":"<p>Additive manufacturing (AM), particularly laser-powder bed fusion (L-PBF), has transformed the production of lightweight, high-performance metallic components, with Scalmalloy emerging as a promising material due to its excellent strength-to-weight ratio, making it ideal for aerospace and automotive applications. However, process-induced anomalies present challenges in achieving reliable fatigue performance, which requires robust methodologies for life prediction and defect-tolerant design. This study investigates the fatigue behavior of L-PBF Scalmalloy under various surface conditions (net-shape and sandblasted) and orientations (vertical and inclined at 55°) using an advanced fracture mechanics framework. An experimental campaign evaluates fatigue strength under these varying conditions, with results compared between conventional models incorporating different assumptions regarding the long-crack threshold (El-Haddad model and NASGRO-type equations) and R-curve-enhanced approaches. The analysis demonstrates the effectiveness of the R-curve in improving fatigue predictions in all conditions tested, particularly in mitigating nonconservative results. This work advances the understanding of fatigue mechanisms in AM Scalmalloy, offering a framework for life prediction and defect-tolerant design, ensuring more reliable applications of additively manufactured components in critical applications.</p>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 7","pages":"3185-3205"},"PeriodicalIF":3.1,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ffe.14638","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144214206","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

Strain Criteria for Rubber Fatigue Assessment Under Mechanical Loading and Temperature Environments 机械载荷和温度环境下橡胶疲劳评定的应变准则

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-04-27 DOI: 10.1111/ffe.14625

Robert Keqi Luo

引用次数: 0