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

A Novel Physical Neural Network Based on Transformer Framework for Multiaxial Fatigue Life Prediction 基于变压器框架的多轴疲劳寿命预测物理神经网络

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-02-23 DOI: 10.1111/ffe.14618

Rui Pan, Jianxiong Gao, Yiping Yuan, Jianxing Zhou, Lingchao Meng, Haoyang Ding, Weiyi Kong

{"title":"A Novel Physical Neural Network Based on Transformer Framework for Multiaxial Fatigue Life Prediction","authors":"Rui Pan, Jianxiong Gao, Yiping Yuan, Jianxing Zhou, Lingchao Meng, Haoyang Ding, Weiyi Kong","doi":"10.1111/ffe.14618","DOIUrl":"https://doi.org/10.1111/ffe.14618","url":null,"abstract":"<div>\u0000 \u0000 <p>The stability of prediction precision under complex loading paths is one of the key challenges in the task of multiaxial fatigue life prediction. This study addresses the challenges of unstable prediction precision in machine learning models, while further improving the precision of multiaxial fatigue life prediction. A novel neural network based on a transformer framework is proposed to capture dependencies between data at multiple scales. Meanwhile, physical loss function with soft adjustments is proposed to add physical constraints to the proposed neural network. These two mechanisms assist each other in improving the accuracy and stability of fatigue life prediction. Performance validation was conducted using fatigue data from nine distinct materials. Comparative analysis was performed against six existing models to evaluate the efficacy of the proposed physical neural network. Experimental evidence supports the high predictive accuracy of the proposed physical neural network, which also demonstrates robust stability across diverse conditions.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 5","pages":"2381-2405"},"PeriodicalIF":3.1,"publicationDate":"2025-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143786897","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

Combination of Element Subdiscretization, Singular Element, and Displacement Jump Enrichment for Simulating Progressive Elastoplastic Fracture 单元亚离散化、奇异单元和位移跳跃富集相结合的渐进弹塑性裂缝模拟

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-02-20 DOI: 10.1111/ffe.14606

Zhongxiao Zhang, Chuwei Zhou, Yinxuan Zhang, Fei Yu

{"title":"Combination of Element Subdiscretization, Singular Element, and Displacement Jump Enrichment for Simulating Progressive Elastoplastic Fracture","authors":"Zhongxiao Zhang, Chuwei Zhou, Yinxuan Zhang, Fei Yu","doi":"10.1111/ffe.14606","DOIUrl":"https://doi.org/10.1111/ffe.14606","url":null,"abstract":"<div>\u0000 \u0000 <p>In this study, a strategy combining element subdiscretization, singular element, and displacement jump enrichment was developed to simulate crack propagation in elastoplastic materials. The background element mesh is independent of the crack path. The element enveloping the crack tip is subdiscretized to subtriangular quarter-point singular elements to represent the singularity there. The elements fully or partly split by the crack were enriched with the Heaviside function to reflect the displacement discontinuity across the two sides of the crack. The proposed method possesses an attractive advantage of being able to employ nearly all the available nonlinear models of finite element method (FEM) directly in crack tip region by using stress singular element instead of asymptotic singular function. Here, the Gurson–Tvergaard–Needleman (GTN) model was employed as crack growth law in elastoplastic materials. The proposed strategy was validated by several numerical simulations of crack propagation in elastoplastic materials including scenarios of mixed fracture mode and nonmonotonic loads.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 5","pages":"2241-2258"},"PeriodicalIF":3.1,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143786723","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 Trace Sc Addition on Aging Precipitation and Fatigue Crack Propagation Behavior of 7085 Alloy 微量Sc对7085合金时效析出及疲劳裂纹扩展行为的影响

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-02-20 DOI: 10.1111/ffe.14614

Qianqian Ren, Xianjing Deng, Zhiqiang Ru, Ming Liu, Zhimin Pi, Lili Wei, Hongfeng Huang, Degui Li

{"title":"Effect of Trace Sc Addition on Aging Precipitation and Fatigue Crack Propagation Behavior of 7085 Alloy","authors":"Qianqian Ren, Xianjing Deng, Zhiqiang Ru, Ming Liu, Zhimin Pi, Lili Wei, Hongfeng Huang, Degui Li","doi":"10.1111/ffe.14614","DOIUrl":"https://doi.org/10.1111/ffe.14614","url":null,"abstract":"<div>\u0000 \u0000 <p>In this work, the effects of Sc-alloying and aging treatments, including T6 peak-aging and retrogression with reaging (RRA) on the fatigue crack propagation (FCP) behavior of 7085 alloy, were investigated. The results show that the RRA-treated alloy exhibits high volume fraction of larger sharable <i>η</i>′ phases, wider precipitate free zone (PFZ), and high Schmid factor. These microstructures contribute to frequent transgranular propagation, increasement of <i>ΔK</i><sub><i>th</i></sub>, and higher FCP resistance than T6-treated alloy. Sc alloying can significantly refine grain structure, inhibit recrystallization, and accelerate the nucleation of <i>η</i>′ strengthening phase, thus improving the mechanical properties of 7085 alloy. However, Sc alloying also tends to induce the occurrence of intergranular propagation due to presence of microscale AlZnMgCuSc phase and fine grain structure with high grain boundary volume fraction. Therefore, Sc alloying plays a negative role in improving the FCP resistance of 7085 alloy.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 5","pages":"2221-2240"},"PeriodicalIF":3.1,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143786722","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

Corrosion and Fatigue Behavior of Boeing Space, Intelligence, and Weapons Systems Laser Powder Fusion Built Scalmalloy® in 5% NaCl 波音航天、智能和武器系统激光粉末融合制造Scalmalloy®在5% NaCl中的腐蚀和疲劳行为

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-02-19 DOI: 10.1111/ffe.14601

Andrew Ang, Richard Aston, Hannah King, Shareen S. L. Chan, Nicole D. Schoenborn, Daren Peng, Rhys Jones

{"title":"Corrosion and Fatigue Behavior of Boeing Space, Intelligence, and Weapons Systems Laser Powder Fusion Built Scalmalloy® in 5% NaCl","authors":"Andrew Ang, Richard Aston, Hannah King, Shareen S. L. Chan, Nicole D. Schoenborn, Daren Peng, Rhys Jones","doi":"10.1111/ffe.14601","DOIUrl":"https://doi.org/10.1111/ffe.14601","url":null,"abstract":"<p>This paper presents the results of a preliminary investigation into the corrosion resistance of laser powder bed fusion (LPBF)-produced Scalmalloy® specimens built by Boeing Space, Intelligence, and Weapons Systems (BSI&WS). The specimens were first exposed to a 5% NaCl salt fog test at 35°C, and a comparison was made with prior tests on the aluminum alloy AA7050-T7451. The AA7050-T7451 alloy was chosen since it is widely used in fixed-wing aircraft, rotary-wing aircraft, and in space structures. This preliminary study reveals that BSI&WS LPBF-built Scalmalloy® is significantly more resistant to corrosion pitting than AA7050-T7451. These prior exposed (Scalmalloy®) specimens were then fatigued tested, and it was shown that exposure for 28 days to a 5% salt spray fog environment at 35°C did not reduce the durability of the specimens. As such, this study, when taken in conjunction with the authors' previous report on the exceptional damage tolerance of Scalmalloy®, reveals that the BIS&WS LPBF Scalmalloy® is particularly attractive for use on a range of both fixed- and rotary-wing military aircraft. It also reinforces the potential for BSI&WS LPBF Scalmalloy® to be used in building parts for attritable aircraft/drones.</p>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 5","pages":"2206-2220"},"PeriodicalIF":3.1,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ffe.14601","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143787338","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

Mixed-Mode Timoshenko-Based Peridynamics for Dynamic Crack Propagation in Functionally Graded Materials 基于混合模timoshenko的功能梯度材料动态裂纹扩展周动力学

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-02-18 DOI: 10.1111/ffe.14610

Victor Bautista, Behnam Shahbazian, Mirmilad Mirsayar

{"title":"Mixed-Mode Timoshenko-Based Peridynamics for Dynamic Crack Propagation in Functionally Graded Materials","authors":"Victor Bautista, Behnam Shahbazian, Mirmilad Mirsayar","doi":"10.1111/ffe.14610","DOIUrl":"https://doi.org/10.1111/ffe.14610","url":null,"abstract":"<div>\u0000 \u0000 <p>A recently developed Timoshenko-based peridynamic model with a variable micropolar shear influence factor is extended to study the behavior of dynamic crack propagation in functionally graded materials (FGMs). To this end, first, the proposed model is validated against two experimental three-point bending benchmark problems with different material functions as well as varying loading rates and durations. Then, numerous additional cases with different boundary conditions and material distribution are studied to predict crack initiation and propagation in such mediums. The examples consist of three-point bending and Kalthoff–Winkler specimens with various material functions under dynamic loads. Finally, the effects of material anisotropy induced by functionally varying material properties on crack propagation path are addressed. It is shown that this new model is advantageous because of its capability to account for shear deformation effects in the bonds previously ignored by the original bond-based peridynamic models. Moreover, comparing the proposed modified bond-based model to more complex methods, such as state-based peridynamics, reveals that the simplicity of the current approach results in lower computational costs while still achieving comparable results.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 5","pages":"2191-2205"},"PeriodicalIF":3.1,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143787285","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

Cyclic Mechanical Behavior, Damage-Coupled Constitutive Model, and Remaining Life Prediction Model of QCr0.8 at High Temperature QCr0.8高温循环力学行为、损伤耦合本构模型及剩余寿命预测模型

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-02-17 DOI: 10.1111/ffe.14611

Jundong Wang, Jiaheng Yu, Zhixun Wen, Xiangqian Xu, Yanqi Shi, Zhufeng Yue

引用次数: 0

Comparability of Fatigue Strength and Life Estimation of a CF-PEKK Composite Under Low and Ultrasonic Frequencies Using Time-Temperature-Based Approaches 基于时间-温度方法的低频和超声下CF-PEKK复合材料疲劳强度和寿命估算的可比性

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-02-16 DOI: 10.1111/ffe.14608

Aravind Premanand, Hanna Schimmelpfeng, Frank Balle

{"title":"Comparability of Fatigue Strength and Life Estimation of a CF-PEKK Composite Under Low and Ultrasonic Frequencies Using Time-Temperature-Based Approaches","authors":"Aravind Premanand, Hanna Schimmelpfeng, Frank Balle","doi":"10.1111/ffe.14608","DOIUrl":"https://doi.org/10.1111/ffe.14608","url":null,"abstract":"<p>Predicting very high cycle fatigue (VHCF) life in composites is challenging due to the lengthy testing times required by traditional methods. Ensuring compatibility between VHCF and high cycle fatigue (HCF) data presents an additional challenge. This investigation examines CF-PEKK fatigue behavior under low and ultrasonic cyclic frequencies using a thermographic approach and the fracture fatigue entropy (FFE) concept. Constant-amplitude fatigue (CAF) and increasing-amplitude fatigue (IAF) tests were conducted, with self-heating behavior analyzed for different loading conditions. Heat dissipation rates from IAF experiments and fatigue data from three CAF experiments at 40 Hz and three at 20 kHz were used to calculate FFE values. Results showed that the self-heating response of CF-PEKK specimens helps achieve comparable fatigue data across frequencies, with consistent FFE ranges identified between HCF and VHCF regimes. This consistency highlights that FFE can provide reliable fatigue life estimation for composites.</p>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 5","pages":"2363-2380"},"PeriodicalIF":3.1,"publicationDate":"2025-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ffe.14608","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143787001","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

An Experimental Study on the Fatigue Response of Hybrid Additively Manufactured 1.2343 Hot Work Steel - MARAGING Steel MS1 复合增材制造1.2343热加工钢-马氏体时效钢MS1疲劳响应试验研究

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-02-16 DOI: 10.1111/ffe.14602

Dario Croccolo, Snežana Ćirić-Kostić, Massimiliano De Agostinis, Stefano Fini, Mattia Mele, Nebojša Bogojević, Vladimir Sinđelić, Giorgio Olmi

{"title":"An Experimental Study on the Fatigue Response of Hybrid Additively Manufactured 1.2343 Hot Work Steel - MARAGING Steel MS1","authors":"Dario Croccolo, Snežana Ćirić-Kostić, Massimiliano De Agostinis, Stefano Fini, Mattia Mele, Nebojša Bogojević, Vladimir Sinđelić, Giorgio Olmi","doi":"10.1111/ffe.14602","DOIUrl":"https://doi.org/10.1111/ffe.14602","url":null,"abstract":"<p>Hybrid additive manufacturing consists of upgrading wrought material by an additive process, adding stacked layers through the melting and sintering of a different material powder. A literature survey indicates that fatigue data for hybrid additively manufactured parts are currently missing. This paper is focused on the fatigue response of 1.2343 hot work steel, upgraded by a maraging steel MS1 powder processed by laser powder bed fusion, and finally heat-treated complying with the specifications from the powder supplier. Results, supported by microscopy SEM analyses, indicate the fatigue response is significantly reduced if compared to that of plain additively manufactured MS1. This is due to the joint between the two materials acting as a weak point, where the porosity of MS1 is incremented with respect to specifications. Moreover, due to the unavailability of a heat treatment that is suitable for both the involved materials, the hot work steel side exhibits poor hardness.</p>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 5","pages":"2162-2175"},"PeriodicalIF":3.1,"publicationDate":"2025-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ffe.14602","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143787003","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

Effect of Microstructural Evolution on Ultra-High-Cycle-Fatigue Behavior of Two-Phase Titanium Alloy Suitable for Ultrasonic Scalpel Applications 显微组织演化对超声手术刀用两相钛合金超高周疲劳性能的影响

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-02-16 DOI: 10.1111/ffe.14578

Zheyu He, Junxiao Xu, Fuhua Cao, Yi Cheng, Hao He, Yimin Li, Jianchun Qin

{"title":"Effect of Microstructural Evolution on Ultra-High-Cycle-Fatigue Behavior of Two-Phase Titanium Alloy Suitable for Ultrasonic Scalpel Applications","authors":"Zheyu He, Junxiao Xu, Fuhua Cao, Yi Cheng, Hao He, Yimin Li, Jianchun Qin","doi":"10.1111/ffe.14578","DOIUrl":"https://doi.org/10.1111/ffe.14578","url":null,"abstract":"<div>\u0000 \u0000 <p>Two-phase titanium alloy, pivotal in ultrasonic scalpels, exhibits working dynamics similar to fatigue behavior under axial vibration loading (<i>R</i> = −1) exceeding 20 kHz, with its ultra-high-cycle fatigue (UHCF) performance being crucial for clinical applications. This study investigates the UHCF properties of the Ti6Al4V alloy by evaluating microstructure variations and provides insights into the mechanism of nanograin formation and expansion in the internal crack initiation sites. Key findings indicate that a partially recrystallized microstructure (annealed at 650°C) exhibits the highest fatigue life, with enhanced resistance to crack initiation attributed to elongated α grains, moderate texture intensity, and optimal basal slip activation. Internal small-scale inclusions, which precede deformed α grains, can also serve as initiation sites for cracks in the UHCF regime. The formation of nanograins at crack initiation sites is primarily driven by the slip of basal <a> dislocations, with their subsequent growth influenced by the type of surrounding grain boundaries. This study provides a profound understanding of the relationship between dislocation motion and internal crack initiation in Ti6Al4V alloy, offering valuable insights for optimizing the microstructural design of ultrasonic scalpels to enhance clinical durability.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 5","pages":"2149-2161"},"PeriodicalIF":3.1,"publicationDate":"2025-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143787002","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 Up to Very High Cycle Regime of Laser Beam Welded Ti60 Joints 激光焊接Ti60接头的高周长疲劳行为

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-02-13 DOI: 10.1111/ffe.14597

Lisha Ren, Yao Chen, Guangpei Xu, Fei Li, Qiaoling Wang, Jie Zhou

{"title":"Fatigue Behavior Up to Very High Cycle Regime of Laser Beam Welded Ti60 Joints","authors":"Lisha Ren, Yao Chen, Guangpei Xu, Fei Li, Qiaoling Wang, Jie Zhou","doi":"10.1111/ffe.14597","DOIUrl":"https://doi.org/10.1111/ffe.14597","url":null,"abstract":"<div>\u0000 \u0000 <p>Ti60 titanium alloy laser beam welding (LBW) joint exhibits significant microstructural heterogeneity, with the base metal (BM) having equiaxed <i>α</i> and intergranular <i>β</i> phases, the heat-affected zone (HAZ) containing acicular <i>α</i>′ martensite and retained <i>α</i> phase, and the fusion zone (FZ) composed of acicular <i>α</i>′ martensite. This leads to uneven nanohardness and microhardness distributions, with the highest in the FZ. The fatigue strength of the welded joints is significantly lower than the BM up to a very high cycle regime, at 180 MPa, with failure modes including surface welded depression, welded pores in the FZ, and facet cleavage fracture in the BM. Dislocation distribution analysis reveals a mismatch between the soft and hard phases of <i>α</i> and <i>β</i>, with stress concentration around welded pores inducing dislocation nucleation and entanglement, ultimately leading to martensite laths breaking and recrystallizing into nanograins under fatigue loading.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 5","pages":"2132-2148"},"PeriodicalIF":3.1,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143787335","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