Fatigue & Fracture of Engineering Materials & Structures最新文献_第2页

Cage Fracture of Planet Bearings Under Revolution-Rotation Coupled Conditions: Failure Mechanism and Vibration Features 行星轴承旋转-旋转耦合条件下保持架断裂：失效机理与振动特征

IF 3.2 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2026-10-04 Epub Date: 2026-08-10 DOI: 10.1111/ffe.70410

Shumiao Zuo, Shuaiqun Yang, Qihong Chu, Peng Dong, Xiangyang Xu, Shuhan Wang, Yanfang Liu

{"title":"Cage Fracture of Planet Bearings Under Revolution-Rotation Coupled Conditions: Failure Mechanism and Vibration Features","authors":"Shumiao Zuo, Shuaiqun Yang, Qihong Chu, Peng Dong, Xiangyang Xu, Shuhan Wang, Yanfang Liu","doi":"10.1111/ffe.70410","DOIUrl":"https://doi.org/10.1111/ffe.70410","url":null,"abstract":"<div>\u0000 \u0000 <p>Planet bearings constitute critical components of planetary gear systems (PGS), comprising a cage and rollers. Rotating rollers preclude direct sliding between the planet gear and carrier, while the cage maintains roller spacing and ensures stable motions. Cage fracture is a typical failure under revolution–rotation coupled conditions, but the failure mechanism and vibration features are still unclear. To address this issue, this study first establishes a PGS dynamic model and a flexible cage model, revealing that reciprocating roller–cage impact constitutes the primary driver. Moreover, the evolution process of cage fracture is elucidated, encompassing high-cycle fatigue crack initiation, low-cycle fatigue propagation, and ultimate brittle fracture. Experimental results indicate that cage fracture induces significant elevations in RMS and standard deviation of time-domain signals, accompanied by pronounced sideband modulation and noise floor elevation near the meshing frequency and its harmonics. This investigation provides guidance for the life prediction and detection of cage fracture.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"49 11","pages":"4778-4795"},"PeriodicalIF":3.2,"publicationDate":"2026-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149099987","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

Interactions of Multiple Curved Cracks in an FGP Strip: Mixed Mode Analysis FGP带材中多重弯曲裂纹的相互作用：混合模态分析

IF 3.2 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2026-10-04 Epub Date: 2026-08-08 DOI: 10.1111/ffe.70346

Mojtaba Mahmoudi Monfared, Ali Khodagholi

{"title":"Interactions of Multiple Curved Cracks in an FGP Strip: Mixed Mode Analysis","authors":"Mojtaba Mahmoudi Monfared, Ali Khodagholi","doi":"10.1111/ffe.70346","DOIUrl":"https://doi.org/10.1111/ffe.70346","url":null,"abstract":"<div>\u0000 \u0000 <p>This paper investigates multiple embedded curved cracks in a functionally graded piezoelectric (FGP) strip. In order to compute Mode I/II stress intensity factors (SIFs) and electric displacement intensity factor (EDIF), distributed dislocation technique (DDT) is employed. It is assumed that the mechanical properties vary exponentially along the thickness of the strip. Through the application of Fourier transform integration, the formulation is reduced to a system of Cauchy-type singular integral equations. These equations are then solved numerically to determine the dislocation density on the crack surfaces, which serve to calculate field intensity factors. The DDT represents an effective approach for solving plane crack problems with high precision. It performs effectively even with complex crack geometries and systems comprising multiple curved cracks. Hence, the analysis developed in this study enables the consideration of an FGP strip with any number of curved cracks. The results have been validated by comparison with analytical solutions in other available papers. Numerical results focusing on the influence of the geometry of curved cracks, nonhomogeneity parameters, thickness of the strip, and interaction between cracks on field intensity factors.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"49 11","pages":"4677-4725"},"PeriodicalIF":3.2,"publicationDate":"2026-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149100284","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

The Interplay of Mean Stress and Material Anisotropy on Fatigue Mechanisms in a Simulated Recycled 6082 Al Alloy With Varying Trace Elements 平均应力和材料各向异性对含不同微量元素的6082铝合金疲劳机制的相互作用

IF 3.2 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2026-10-04 Epub Date: 2026-08-06 DOI: 10.1111/ffe.70389

Aritra Sarkar, Fredrik Nes Fredheim, Bård Nyhus, Nima Razavi

{"title":"The Interplay of Mean Stress and Material Anisotropy on Fatigue Mechanisms in a Simulated Recycled 6082 Al Alloy With Varying Trace Elements","authors":"Aritra Sarkar, Fredrik Nes Fredheim, Bård Nyhus, Nima Razavi","doi":"10.1111/ffe.70389","DOIUrl":"https://doi.org/10.1111/ffe.70389","url":null,"abstract":"<div>\u0000 \u0000 <p>This study investigates the influence of mean stress and material anisotropy (specimen orientation) on the high-cycle fatigue (HCF) behavior of a simulated recycled 6082 Al alloy designed as three variants (GA1, GA2, and GA3) with increasing trace element content (Fe, Cu, and Zn). Specimens were extracted along transverse and longitudinal directions relative to extrusion. GA3 (with the highest trace element content) exhibits inferior fatigue performance compared with GA1, with a higher mean stress sensitivity in the former case. This is attributed to the varying influence of intrinsic factors like surface roughness and slip character, along with extrinsic factors like load-level variations. For GA3, longitudinally extracted specimens show longer fatigue life and lower mean stress sensitivity than those extracted transversely. Differences in fatigue life and mean stress sensitivity between specimen orientations are found to be primarily governed by intrinsic factors, like microstructure (grain size distribution, slip character) and surface roughness, rather than changes in load levels.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"49 11","pages":"4552-4571"},"PeriodicalIF":3.2,"publicationDate":"2026-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149099837","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

Comparison of Mesoscale Crack Advance and Process Zone Element Approaches for Simulating Ductile Crack Trajectories in Steel 模拟钢中延性裂纹轨迹的中尺度裂纹推进和过程区元方法的比较

IF 3.2 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2026-10-04 Epub Date: 2026-08-14 DOI: 10.1111/ffe.70414

Andrew Ziccarelli, Amit Kanvinde, Gregory Deierlein

{"title":"Comparison of Mesoscale Crack Advance and Process Zone Element Approaches for Simulating Ductile Crack Trajectories in Steel","authors":"Andrew Ziccarelli, Amit Kanvinde, Gregory Deierlein","doi":"10.1111/ffe.70414","DOIUrl":"https://doi.org/10.1111/ffe.70414","url":null,"abstract":"<p>Rigorous application of continuum damage mechanics (CDM) models coupled with crack propagation schemes can predict crack branching or zigzag trajectories near the crack tip, even when the macroscopic crack growth is straight. This arises from oscillations in the local damage field and is consistent with experimental observations of ductile tearing; however, it complicates finite element simulations. This study investigates this behavior through two crack propagation strategies in finite element simulations. The first, termed the Mesoscale Crack Advance (MCA) approach, explicitly tracks changes in crack trajectory based on the evolving local damage field. The second, termed the Process Zone Element (PZE) approach, represents damage and crack advance in an averaged sense over a material's characteristic length. Both approaches produce similar results. Despite its simplified formulation, the PZE approach captures the essential features of ductile crack propagation and provides a computationally efficient, practical alternative for simulating ductile crack growth and brittle fracture.</p>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"49 11","pages":"4850-4862"},"PeriodicalIF":3.2,"publicationDate":"2026-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ffe.70414","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149100130","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 Investigation on Mechanical Behavior of Sandstone Containing Two Non-Coplanar Fissures Under Triaxial Monotonic and Multilevel Cyclic Loading 含两个非共面裂隙砂岩在三轴单调和多级循环加载下力学行为的试验研究

IF 3.2 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2026-10-04 Epub Date: 2026-08-18 DOI: 10.1111/ffe.70392

Wang-Xing Hong, Sheng-Qi Yang, De-An Zheng

{"title":"Experimental Investigation on Mechanical Behavior of Sandstone Containing Two Non-Coplanar Fissures Under Triaxial Monotonic and Multilevel Cyclic Loading","authors":"Wang-Xing Hong, Sheng-Qi Yang, De-An Zheng","doi":"10.1111/ffe.70392","DOIUrl":"https://doi.org/10.1111/ffe.70392","url":null,"abstract":"<div>\u0000 \u0000 <p>Natural rock masses with complex fissures are frequently subjected to multilevel cyclic loading during underground engineering construction. The effect of fissure layout patterns and confining pressure on the fatigue mechanical behavior of fissured rocks remains poorly understood. Therefore, triaxial multilevel cyclic loading tests were performed on sandstone specimens containing two non-coplanar fissures with four layout patterns. The results indicated that: (1) Fissure layout patterns dominated the characteristics of stress–strain curves and the degree of mechanical deterioration of specimens. (2) Multilevel cyclic loading altered the inherent stress fluctuation features on the stress–strain curves of fissured specimens. (3) Multilevel cyclic loading generally reduced peak strength compared with monotonic loading, while gentle–gentle type specimens exhibited strength enhancement. (4) Multilevel cyclic loading and confining pressure both promoted the transition from tensile-dominated crack coalescence to shear-dominated crack coalescence. These findings could provide a reference for the stability assessment of flawed rock masses under cyclic engineering disturbance.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"49 11","pages":"4880-4906"},"PeriodicalIF":3.2,"publicationDate":"2026-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149100187","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

Investigating Fracture Behavior of Lattice Structures Using the XFEM and Equivalent Solid Material Model Techniques 用XFEM和等效固体材料模型技术研究点阵结构的断裂行为

IF 3.2 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2026-10-04 Epub Date: 2026-08-06 DOI: 10.1111/ffe.70393

Bahman Paygozar, Recep M. Gorguluarslan

{"title":"Investigating Fracture Behavior of Lattice Structures Using the XFEM and Equivalent Solid Material Model Techniques","authors":"Bahman Paygozar, Recep M. Gorguluarslan","doi":"10.1111/ffe.70393","DOIUrl":"https://doi.org/10.1111/ffe.70393","url":null,"abstract":"<p>This study aims to numerically investigate the mode I, II, and III fracture behaviors of additively manufactured degradable, bioplastic polylactic acid (PLA) lattice specimens. Numerical simulations were performed using the eXtended Finite Element Method (XFEM) based on the extracted PLA's mechanical and fracture material properties. The maximum principal stress and fracture energy power-law criteria were utilized to simulate damage initiation and evolution in three-dimensional (3D) numerical analyses. To consider the effects of build orientation, the transversely isotropic elasticity model (TIEM) was implemented. To facilitate the XFEM analyses, the equivalent solid material model (ESMM) technique was also utilized. The experimental load-displacement responses of single-edge notched bending specimens under the symmetric and asymmetric four-point bending and mode III transverse shear cracked plate tests were conducted for comparison with the XFEM analyses in mode I, II, and III fracture, respectively. A common calibration factor, as well as the simultaneous utilization of the TIEM model, as well as the XFEM and ESMM techniques, reflected numerical results of acceptable accuracy compared to the experimental results; 5.3% (3.4%), 4.4% (5.8%), and 9.6% (5.4%) differences for the stiffness (peak load) of mode I, II, and III specimens, respectively.</p>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"49 11","pages":"4572-4585"},"PeriodicalIF":3.2,"publicationDate":"2026-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ffe.70393","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149099838","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

Train-Induced Concrete Fatigue Damage of CRTS III Slab Ballastless Track CRTS III型平板无砟轨道列车混凝土疲劳损伤研究

IF 3.2 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2026-10-04 Epub Date: 2026-08-15 DOI: 10.1111/ffe.70409

Daobin Yan, Yude Xu

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Fatigue Life Estimation of Cold Expanded and Bolt Clamped Al-Alloy Plates in Double Shear Lap Joints Using Different Plasticity Models 基于不同塑性模型的双剪切搭接节点冷胀与螺栓夹紧铝合金板疲劳寿命估算

IF 3.2 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2026-10-04 Epub Date: 2026-08-05 DOI: 10.1111/ffe.70405

Nihayat Hussein Ameen, T. N. Chakherlou, Mohammad Reza Khoshravan Azar

{"title":"Fatigue Life Estimation of Cold Expanded and Bolt Clamped Al-Alloy Plates in Double Shear Lap Joints Using Different Plasticity Models","authors":"Nihayat Hussein Ameen, T. N. Chakherlou, Mohammad Reza Khoshravan Azar","doi":"10.1111/ffe.70405","DOIUrl":"https://doi.org/10.1111/ffe.70405","url":null,"abstract":"<div>\u0000 \u0000 <p>Finite element method was used to analyze cold expansion levels (1.5% and 4.7%) under a bolt torque of 4 N.m to estimate fatigue life of 2024-T3 aluminum in double-shear lap joints. To model the material response, three different plasticity hardening approaches were employed to predict the resulting stress and strain fields in the joint under the influence of cold expansion and bolt preload. The multi-linear isotropic and multi-linear kinematic hardening models were calibrated using monotonic tensile test data, whereas the nonlinear combined hardening model was developed based on cyclic tests. The fatigue crack initiation life was estimated using Kandil–Brown–Miller, Fatemi–Socie, and Glinka criteria. The AFGROW software was adopted for estimating fatigue crack propagation life. The overall fatigue life was determined by summing the crack initiation and propagation stages and was compared against previously published experimental fatigue results. The nonlinear model provided the most accurate fatigue life estimations across all three fatigue assessment criteria.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"49 11","pages":"4607-4627"},"PeriodicalIF":3.2,"publicationDate":"2026-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149099482","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 Unified Multiaxial Fatigue Life Prediction Method Based on Transformer Sequence-to-Sequence Translation 基于变压器序列间转换的多轴疲劳寿命统一预测方法

IF 3.2 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2026-10-04 Epub Date: 2026-08-13 DOI: 10.1111/ffe.70417

Shuling Xian, Xiaowei Wang, Yu Fang, Zhenkun Guo, Xintian Liu, Qin Shen

{"title":"A Unified Multiaxial Fatigue Life Prediction Method Based on Transformer Sequence-to-Sequence Translation","authors":"Shuling Xian, Xiaowei Wang, Yu Fang, Zhenkun Guo, Xintian Liu, Qin Shen","doi":"10.1111/ffe.70417","DOIUrl":"https://doi.org/10.1111/ffe.70417","url":null,"abstract":"<div>\u0000 \u0000 <p>This paper proposes a transformer-based multiaxial fatigue life prediction method, innovatively formulating the task as a sequence-to-sequence transformation problem. The model takes fused features (comprising strain histories and material properties) as input, and employs a multi-head self-attention mechanism in the encoder to capture the synergistic effect of loading sequences and material properties on fatigue life. The decoder performs stepwise prediction by combining the modeled fatigue life increment sequence with a masked self-attention mechanism and an autoregressive mechanism. The approach automatically learns long-range dependencies and cross-channel contextual features within loading histories, eliminating reliance on manual feature engineering or empirical cycle counting methods. Experiments on three representative cases (multiaxial fatigue for multiple materials under multiple loading paths, thermo-mechanical fatigue and variable-amplitude fatigue) demonstrate that the proposed model consistently outperforms traditional LSTM-MLP models in both prediction accuracy and generalization capability under current test conditions.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"49 11","pages":"4808-4831"},"PeriodicalIF":3.2,"publicationDate":"2026-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149100052","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

Stochastic Fracture Simulation and Size Effect for Notched Concrete Beams 缺口混凝土梁的随机断裂模拟及尺寸效应

IF 3.2 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2026-09-06 Epub Date: 2026-07-16 DOI: 10.1111/ffe.70360

Ao Feng, Chengming Lan, Wensong Zhou, Jianjun Wang, Caiping Liu

{"title":"Stochastic Fracture Simulation and Size Effect for Notched Concrete Beams","authors":"Ao Feng, Chengming Lan, Wensong Zhou, Jianjun Wang, Caiping Liu","doi":"10.1111/ffe.70360","DOIUrl":"https://doi.org/10.1111/ffe.70360","url":null,"abstract":"<div>\u0000 \u0000 <p>This paper proposes a stochastic fracture simulation method based on the phase field model, incorporating variability in the critical energy release rate and tensile strength. Experimental data from notched concrete beams are used to validate the proposed method. The simulated crack propagation paths, load versus crack mouth opening displacement curves, and nominal strengths demonstrate the anticipated variability. Furthermore, an asymptotic weakest-link Weibull model is proposed to characterize the nominal strength. The weakest-link effect gradually becomes dominant, resulting in a decrease in nominal strength as the normalized beam depth increases. The threshold normalized beam depth can be determined when the proposed model asymptotically approaches the weakest-link model. The results indicate that the proposed model fits two sets of nominal strength data reported in the literature quite well. The size effect on nominal strength depends on the notch-to-depth ratio and becomes more pronounced as the variability in nominal strength increases.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"49 10","pages":"4056-4070"},"PeriodicalIF":3.2,"publicationDate":"2026-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148904214","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