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

A Multi-Fidelity Modeling Framework for Predicting the Fracture Toughness of Steel in Hydrogen Environments 氢环境下钢断裂韧性预测的多保真度建模框架

IF 3.2 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2026-09-06 Epub Date: 2026-07-24 DOI: 10.1111/ffe.70385

Shiyuan Yang, Andrés Díaz, Abílio M. P. De Jesus, Debiao Meng, Roya Darabi, Shun-Peng Zhu

{"title":"A Multi-Fidelity Modeling Framework for Predicting the Fracture Toughness of Steel in Hydrogen Environments","authors":"Shiyuan Yang, Andrés Díaz, Abílio M. P. De Jesus, Debiao Meng, Roya Darabi, Shun-Peng Zhu","doi":"10.1111/ffe.70385","DOIUrl":"https://doi.org/10.1111/ffe.70385","url":null,"abstract":"<div>\u0000 \u0000 Hydrogen embrittlement is a major failure mode of steel structures in hydrogen-rich environments. Accurate and rapid assessment of material parameters, such as the fracture toughness of steels in hydrogen environments, is crucial for ensuring the safe operation of hydrogen energy infrastructure. In this study, a computational multi-fidelity modeling framework is proposed to estimate the hydrogen-assisted fracture toughness of steels within a defined phase-field parameter space. A finite element model based on the fracture phase field principle is constructed to obtain high-fidelity data. A low-fidelity analytical expression that considers hydrogen-induced fracture energy reduction and stress-driven accumulation is developed to obtain a large number of low-fidelity samples. The proposed multi-fidelity model achieves higher prediction accuracy than popular models designed for small sample sizes, namely, support vector regression, kernel ridge regression, and Gaussian process regression. Notably, the constructed multi-fidelity model maintains good predictive performance under the investigated loading-rate cases. Furthermore, the influence of modeling variables on \u0000<math>\u0000 <msub>\u0000 <mi>K</mi>\u0000 <mi>IH</mi>\u0000 </msub></math> is thoroughly discussed. In summary, the proposed multi-fidelity modeling framework provides a powerful tool for accurate, high-throughput hydrogen embrittlement performance assessment.\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"49 10","pages":"4248-4265"},"PeriodicalIF":3.2,"publicationDate":"2026-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148903856","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

Temperature-Dependent Multiaxial Ratchetting of Polyamide 12 Fabricated by Selective Laser Sintering 选择性激光烧结制备聚酰胺12的温度依赖性多轴棘轮

IF 3.2 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2026-09-06 Epub Date: 2026-07-24 DOI: 10.1111/ffe.70373

Minjun Zhao, Kaijuan Chen, Changhong Linghu, Qianhua Kan, Guozheng Kang

{"title":"Temperature-Dependent Multiaxial Ratchetting of Polyamide 12 Fabricated by Selective Laser Sintering","authors":"Minjun Zhao, Kaijuan Chen, Changhong Linghu, Qianhua Kan, Guozheng Kang","doi":"10.1111/ffe.70373","DOIUrl":"https://doi.org/10.1111/ffe.70373","url":null,"abstract":"<div>\u0000 \u0000 This study investigates the temperature-dependent multiaxial ratchetting of polyamide 12 fabricated by selective laser sintering, with particular emphasis on the roles of sintering interface and voids. The results demonstrate that both the multiaxial ratchetting strain and the associated irreversible viscoplastic deformation increase with increasing temperature. The polyamide 12 exhibits an additional softening effect under the non-proportional multiaxial loading, and the magnitude of the additional softening effect depends strongly on the shape of the multiaxial loading path. Additionally, the multiaxial ratchetting exhibits a strong dependence on the building orientation at room temperature, with the ratchetting strain increasing in the order of X0, X90, and X45 orientations (i.e., an increase of approximately 30% from the X0 to X45 orientation). However, the effect of building orientation on ratchetting diminishes at elevated temperatures. This is because the polyamide 12 is mainly in a rubbery state at elevated temperatures, where the ratchetting deformation is less affected by void defects. These findings provide guidance for the rational design and reliability evaluation of polyamide 12 components fabricated by selective laser sintering under multiaxial loading across different temperatures.\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"49 10","pages":"4216-4235"},"PeriodicalIF":3.2,"publicationDate":"2026-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148903857","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

Understanding the Effect of Aerospace Atmospheric Environments Containing Salts on Fatigue Crack Growth of AA7085 航空航天含盐大气环境对AA7085疲劳裂纹扩展影响的研究

IF 3.2 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2026-09-06 Epub Date: 2026-07-26 DOI: 10.1111/ffe.70390

Brandon T. Free, Olivia J. Underhill, Gabriella A. Marino, Gabriella C. Montiel, Sarah E. Galyon Dorman, Jenifer S. (Warner) Locke

{"title":"Understanding the Effect of Aerospace Atmospheric Environments Containing Salts on Fatigue Crack Growth of AA7085","authors":"Brandon T. Free, Olivia J. Underhill, Gabriella A. Marino, Gabriella C. Montiel, Sarah E. Galyon Dorman, Jenifer S. (Warner) Locke","doi":"10.1111/ffe.70390","DOIUrl":"https://doi.org/10.1111/ffe.70390","url":null,"abstract":"<div>\u0000 \u0000 Fatigue crack growth is accelerated as a function of salt load density in atmospheric environments producing surface electrolyte droplets, suggesting that conventional testing environments may not accurately predict da/dN particularly at high loading frequencies (f). Crack growth rates (da/dN) were determined for samples with NaCl deposited on the surface at densities between 10 and 1000 μg/cm2 exposed to 80% RH air. Results showed the largest acceleration in da/dN occurred for salt loads between 100 and 1000 μg/cm2. For frequencies above 1 Hz, 100 μg/cm2 yielded higher da/dN than both air and full immersion environments. A salt load of 10 g/cm2 showed da/dN similar to air without surface salts. For 50 μg/cm2, results were mixed with one sample showing accelerated da/dN and the second showing a lower da/dN. It is clear from this study that understanding the effects of surface salts on da/dN is critical to preserve structural integrity.\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"49 10","pages":"4285-4297"},"PeriodicalIF":3.2,"publicationDate":"2026-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148904310","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

Application of the Multiaxial Fatigue Life Prediction Model Suitable to the Key Components of Aeroengine Considering the Effect of Non-Proportionality 考虑非比例影响的航空发动机关键部件多轴疲劳寿命预测模型的应用

IF 3.2 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2026-09-06 Epub Date: 2026-07-09 DOI: 10.1111/ffe.70354

Junqi Feng, Dasheng Wei, Tonghui Wang, Xiyuan Zhang, Shun Yang

引用次数: 0

Analysis of Mixed-Mode Fracture Characteristics of Cracked Concrete Based on the Extended Maximum Tangential Strain Criterion 基于扩展最大切向应变准则的开裂混凝土混合模式断裂特征分析

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.70368

Tao Li, Huilan Ren, Jianguo Ning

引用次数: 0

Surface Effects on the Elastic Stress Field at Blunt Crack-Tip in Mode I ⅰ型钝裂纹尖端弹性应力场的表面效应

IF 3.2 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2026-09-06 Epub Date: 2026-07-23 DOI: 10.1111/ffe.70370

Yassine Belhaoui, Hocine Bechir

{"title":"Surface Effects on the Elastic Stress Field at Blunt Crack-Tip in Mode I","authors":"Yassine Belhaoui, Hocine Bechir","doi":"10.1111/ffe.70370","DOIUrl":"https://doi.org/10.1111/ffe.70370","url":null,"abstract":"<div>\u0000 \u0000 This study revisits the criteria of linear elastic fracture mechanics (LEFM), such as S-criterion, within the framework of surface elasticity theory. The main objective is to establish the counterpart of stress intensity factor (SIF) \u0000<math>\u0000 <msub>\u0000 <mrow>\u0000 <mi>K</mi>\u0000 </mrow>\u0000 <mrow>\u0000 <mi>I</mi>\u0000 </mrow>\u0000 </msub></math> of LEFM at micrometer or even nanometer scale, thereby extending fracture mechanics concepts within the framework of surface elasticity theory. To achieve this, a calibration methodology is proposed for determining a large set of real constants of Cauchy stress field that has been established in the literature. The stress field is transformed into a linear algebraic system. Next, the surface elasticity theory is implemented in COMSOL finite element code. The accuracy of the simulation results is validated against benchmark data from the literature. The calibrated Cauchy stress field should then be employed to revisit S-criterion at the micrometer or nanometer scale. Finally, fracture toughness is analyzed within the framework of surface elasticity theory.\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"49 10","pages":"4179-4196"},"PeriodicalIF":3.2,"publicationDate":"2026-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148904351","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

Deep Learning–Assisted Ultrahigh-Cycle Bending Fatigue of Precorroded Completion Strings 深度学习辅助下预腐蚀完井管柱的超高周弯曲疲劳

IF 3.2 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2026-09-06 Epub Date: 2026-07-14 DOI: 10.1111/ffe.70342

Zhenyu Zhu, Hailong Kong, Guocai Chai, Mattias Calmunger, Yun Wu, Qingyuan Wang, Wei Feng

{"title":"Deep Learning–Assisted Ultrahigh-Cycle Bending Fatigue of Precorroded Completion Strings","authors":"Zhenyu Zhu, Hailong Kong, Guocai Chai, Mattias Calmunger, Yun Wu, Qingyuan Wang, Wei Feng","doi":"10.1111/ffe.70342","DOIUrl":"https://doi.org/10.1111/ffe.70342","url":null,"abstract":"<div>\u0000 \u0000 This study examines ultrahigh-cycle bending fatigue behavior of BG2532 after H2S precorrosion. At lower stress amplitudes (< 680 MPa), precorrosion has a pronounced effect, leading to increased uncertainty in fatigue life. Fatigue cracks preferentially initiate at the upper and lower edges of the bending section, where H2S-induced surface degradation produces numerous micro fatigue sources. Additionally, H2S penetration corrodes the subsurface microstructure, causing localized stress concentration and promoting crack propagation. To describe this behavior, a grouped convolutional neural network was employed, leveraging its capability to model nonlinear relationships efficiently. Only the following four inputs were required: corrosion state, stress amplitude, and two fatigue-fracture-related features representing crack initiation and propagation mechanisms. The proposed model achieved accurate prediction of bending fatigue life after precorrosion, with results largely within a factor of two error band.\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"49 10","pages":"4011-4023"},"PeriodicalIF":3.2,"publicationDate":"2026-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148904021","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 Shakedown-Constrained Critical-Plane Model for Multiaxial Fatigue-Life Prediction Under Tension–Torsion Loading With Independent Walker Factors 具有独立Walker因子的拉扭载荷下多轴疲劳寿命预测的振动约束临界平面模型

IF 3.2 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2026-09-06 Epub Date: 2026-07-23 DOI: 10.1111/ffe.70380

Donglin Zhai, Zongyuan Zou, Jianliang Hu, Lei Chen, Miao Jin

{"title":"A Shakedown-Constrained Critical-Plane Model for Multiaxial Fatigue-Life Prediction Under Tension–Torsion Loading With Independent Walker Factors","authors":"Donglin Zhai, Zongyuan Zou, Jianliang Hu, Lei Chen, Miao Jin","doi":"10.1111/ffe.70380","DOIUrl":"https://doi.org/10.1111/ffe.70380","url":null,"abstract":"<div>\u0000 \u0000 Accurate fatigue-life prediction under multiaxial tension–torsion loading remains challenging when mean normal stress, mean shear stress, and nonproportional loading act simultaneously. This study proposes a shakedown-constrained critical-plane model in which the admissible stress-based regime is defined by an elastic shakedown boundary, whereas the fatigue damage parameter is formulated on the maximum-shear critical plane. Independent Walker factors are introduced for the normal and shear components to describe their direction-specific mean-stress sensitivities. The model is calibrated using baseline loading paths and validated against multiaxial fatigue-limit and finite-life datasets covering 20 metallic material conditions under proportional and nonproportional loading, with bootstrap-based sensitivity analysis characterizing parameter identifiability. Compared with established criteria, the proposed model reduces prediction scatter for the evaluated datasets, particularly for loading paths involving complex mean–stress interactions, whereas its validity is explicitly restricted to smooth cylindrical specimens under tension–torsion loading within the elastic shakedown regime.\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"49 10","pages":"4197-4215"},"PeriodicalIF":3.2,"publicationDate":"2026-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148904350","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

High-Cycle Fatigue Behavior of Duplex Stainless Steel Microstructures Obtained by Laser Beam Powder Bed Fusion Process 激光粉末床熔合制备双相不锈钢组织的高周疲劳行为

IF 3.2 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2026-08-12 Epub Date: 2026-06-23 DOI: 10.1111/ffe.70343

Maxime Piras, Anis Hor, Eric Charkaluk

{"title":"High-Cycle Fatigue Behavior of Duplex Stainless Steel Microstructures Obtained by Laser Beam Powder Bed Fusion Process","authors":"Maxime Piras, Anis Hor, Eric Charkaluk","doi":"10.1111/ffe.70343","DOIUrl":"https://doi.org/10.1111/ffe.70343","url":null,"abstract":"<div>\u0000 \u0000 Conventionally fabricated duplex stainless steels (DSSs) are well-known for their good fatigue, corrosion, and combined fatigue/corrosion performance. In laser beam powder bed fusion (PBF-LB/M), their fabricability and tensile behavior are increasingly studied, though literature highlights process-induced defects and the need for heat treatment to transform the fully ferritic as-built microstructure into a duplex (ferrite/austenite) state. Heat treatment can tailor grain size and reduce defects. This work investigates the interplay between microstructure and defects in tensile and torsional high-cycle fatigue of PBF-LB/M DSS. Three microstructures are examined: fully ferritic, fine-grained 50/50 duplex, and coarse-grained 50/50 duplex, with comparison to a hot-isostatically pressed condition to assess defect effects. The austenite-free microstructure is highly defects-sensitive, whereas duplex structures show reduced sensitivity, particularly under torsion. Fine grains enhance fatigue strength in both loading modes. These findings demonstrate how additive manufacturing-enabled microstructural design mitigates defect-sensitivity and inform heat treatment strategies for improved fatigue performance.\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"49 9","pages":"3701-3719"},"PeriodicalIF":3.2,"publicationDate":"2026-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148710468","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 Crack Modeling of Railheads Using a Nonlinear Cohesive Zone Model 基于非线性内聚区模型的铁路道头疲劳裂纹建模

IF 3.2 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2026-08-12 Epub Date: 2026-06-28 DOI: 10.1111/ffe.70352

Santosh Reddy Kommidi, Hesam Mortazavi, Yong-Rak Kim, David H. Allen

{"title":"Fatigue Crack Modeling of Railheads Using a Nonlinear Cohesive Zone Model","authors":"Santosh Reddy Kommidi, Hesam Mortazavi, Yong-Rak Kim, David H. Allen","doi":"10.1111/ffe.70352","DOIUrl":"https://doi.org/10.1111/ffe.70352","url":null,"abstract":"Subsurface fatigue crack growth within railheads can be deleterious leading to catastrophic failures in rails. This study aims to model the fatigue crack growth originating at the subsurface level within railheads. Towards that end, a finite element modeling approach is utilized wherein complex crack growth is explicitly modeled using a nonlinear cohesive zone (NCZ) model for the first time. The modeling demonstrates the capability to effectively simulate fatigue crack growth in rails. The parametric analysis conducted within this study indicates that the key NCZ parameters are effective indicators of rail fatigue life. It can lead to appropriate fracture characterization for predicting the fatigue crack growth rate and fatigue life of railheads found to contain pre-existing flaws. Model validation against experimental fatigue data of a rail specimen up to 200,000 cycles demonstrated that the NCZ model can reasonably capture crack growth in railheads, supporting its potential as a robust fatigue life prediction model. The simulated model results obtained herein indicate the feasibility of the NCZ for effectively predicting complex fatigue crack growth in rails induced by subsurface flaws in railheads, thereby potentially leading to an advanced mechanistic tool for predicting the service life of rail sections with properly detected subsurface flaws.","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"49 9","pages":"3738-3750"},"PeriodicalIF":3.2,"publicationDate":"2026-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ffe.70352","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148710410","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