Fatigue & Fracture of Engineering Materials & Structures最新文献_第6页

Notch and Fracture Mechanics-Based Assessment of Multiaxial Fatigue Thresholds of Defects and Sharp Notches in Metallic Materials 基于缺口和断裂力学的金属材料缺陷和尖锐缺口多轴疲劳阈值评估

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-01-15 DOI: 10.1111/ffe.14478

Francesco Collini, Daniele Rigon, Giovanni Meneghetti

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Effect of Strain Gradients on Fatigue Life of C-Mn Steel Notched Tubes Under Axial and Torsion Loads: Tests and Analyses 应变梯度对轴向和扭转载荷下C-Mn钢缺口管疲劳寿命的影响：试验与分析

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-01-15 DOI: 10.1111/ffe.14570

Shreebanta Kumar Jena, Punit Arora, Suneel K. Gupta, J. Chattopadhyay

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Quasistatic Tensile and Fatigue Performances of Titanium Alloy Open Hole Structures Strengthened by Different Cold Expansion Mandrel Front Cone Angles 不同冷膨胀芯轴前锥角强化钛合金开孔结构的准静态拉伸疲劳性能

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-01-14 DOI: 10.1111/ffe.14559

Junpeng Chen, Yingxiang Ma, Yingxin Chen, Yangjie Zuo

{"title":"Quasistatic Tensile and Fatigue Performances of Titanium Alloy Open Hole Structures Strengthened by Different Cold Expansion Mandrel Front Cone Angles","authors":"Junpeng Chen, Yingxiang Ma, Yingxin Chen, Yangjie Zuo","doi":"10.1111/ffe.14559","DOIUrl":"https://doi.org/10.1111/ffe.14559","url":null,"abstract":"<div>\u0000 \u0000 <p>In this paper, the cold expansion test of titanium alloy open hole structures was conducted, and the fatigue performance was also assessed. A parametric study of the mandrel front cone angle revealed a correlation with the strengthening quality and fatigue performance evolution, providing valuable insight for optimization of open hole structure designs. The results showed that the strengthening resistance decreased and then increased with the increase of the front cone angle. The microhardness of the hole edge increased and exhibited obvious sensitivity to the mandrel front cone angle. As expected, the fatigue life of specimens increased after strengthening. The best fatigue life strengthening front cone angle was 15°. Although the front cone angle exhibited little influence on the location of the fatigue crack initiation zone and crack propagating direction, the crack extension rate and the stiffness degradation rate could be reduced by the proper mandrel front cone angle.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 4","pages":"1574-1588"},"PeriodicalIF":3.1,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143581704","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}

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Experimental Investigation of Low-Cycle Corrosion Fatigue Behavior of AA5059 Aluminum Alloy in Air and 3.5% NaCl Solution Environments AA5059铝合金在空气和3.5% NaCl溶液环境中的低周腐蚀疲劳行为试验研究

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-01-14 DOI: 10.1111/ffe.14558

Dharani Kumar Selvan, Karthick Ganesan, V. Manoj Mohan Prasath

{"title":"Experimental Investigation of Low-Cycle Corrosion Fatigue Behavior of AA5059 Aluminum Alloy in Air and 3.5% NaCl Solution Environments","authors":"Dharani Kumar Selvan, Karthick Ganesan, V. Manoj Mohan Prasath","doi":"10.1111/ffe.14558","DOIUrl":"https://doi.org/10.1111/ffe.14558","url":null,"abstract":"<div>\u0000 \u0000 <p>The shipbuilding industry is increasingly adopting aluminum alloys like AA5059 over traditional steel alloys to achieve lighter structures, enhanced environmental protection, and improved energy efficiency. Ship structures are frequently subjected to fatigue loading from combined wave-induced stresses and corrosive effects. This study investigates the low-cycle fatigue (LCF) behavior of AA5059 aluminum alloy in both air and a 3.5% NaCl solution to assess the impact of corrosion on fatigue life. LCF tests were conducted at strain amplitudes of Δ<i>ε</i><sub>T</sub>/2 = 0.3%–0.7%. The findings indicate a marked reduction in fatigue life in the NaCl solution compared with air, regardless of strain amplitude. Back (<i>σ</i><sub>b</sub>), effective (<i>σ</i><sub>eff</sub>) stresses were assessed using Dickson's approach, showing reduced back stress and increased effective stress in 3.5% NaCl, indicating diminished hardening and enhanced plastic deformation. Corrosion was observed to enhance plastic strain energy density (PSED), with specimens exhibiting massing behavior in air and non-massing behavior in the corrosive environment. Fractographic analysis revealed corrosion pits, oxide formations, and secondary cracks in the crack initiation (CI), crack propagation (CP), and final fracture (FF) regions in NaCl. These findings on the low-cycle corrosion fatigue performance of AA5059 provide valuable guidance for its application in shipbuilding, particularly in corrosive marine environments.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 4","pages":"1542-1558"},"PeriodicalIF":3.1,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143581702","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}

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Reusable Turbine Material GH4586: Stochastic Analysis and Reliability Assessment of Low-Cycle Fatigue Life Parameters at Multiple Temperatures 可重复使用涡轮材料GH4586：多温度下低周疲劳寿命参数的随机分析与可靠性评估

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-01-14 DOI: 10.1111/ffe.14568

Yixin Ma, Bingyang Liu, Wei Wang, Guobiao Cai, Ping Jin

{"title":"Reusable Turbine Material GH4586: Stochastic Analysis and Reliability Assessment of Low-Cycle Fatigue Life Parameters at Multiple Temperatures","authors":"Yixin Ma, Bingyang Liu, Wei Wang, Guobiao Cai, Ping Jin","doi":"10.1111/ffe.14568","DOIUrl":"https://doi.org/10.1111/ffe.14568","url":null,"abstract":"<div>\u0000 \u0000 <p>Turbines, crucial in reusable rocket engines, benefit significantly from precise fatigue life forecasting in their force-thermal cyclic loading conditions. Further, low-cycle fatigue life predictions can be random due to uncertainties in material properties. This study aims to analyze the probabilistic low-cycle fatigue life of GH4586 under different temperature. Mechanical and thermal tests were carried out for the temperatures between 87 K and 1173 K. Random distributions of low-cycle fatigue parameters were obtained using various methods. The cyclic life reliability of a reusable rocket engine turbine rotor blisk was analyzed using stochastic low-cycle fatigue parameters. Mitchell's method had a higher prediction accuracy when the reliability was greater than 0.8. Sensitivity analysis shows the significant impact of GH4586 fatigue parameters on cyclic life reliability. Sensitivity coefficients of strength coefficient and ductility coefficient are 32.73% and 27.06%, respectively. These findings provide valuable insights that inform the design of turbines and enhance their reliability.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 4","pages":"1559-1573"},"PeriodicalIF":3.1,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143581703","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}

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Assessing the Very High Cycle Fatigue Behavior and Frequency Effect of Structural Steel Welds 结构钢焊缝的甚高周疲劳性能及频率效应评估

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-01-14 DOI: 10.1111/ffe.14569

Andrew England, Yevgen Gorash, Athanasios Toumpis

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Mode-I Moving Semi-Infinite Crack in an Infinitely Long Orthotropic Strip in the Presence of Electromagnetic Field 电磁场作用下无限长正交各向异性带材中的i型运动半无限裂纹

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-01-09 DOI: 10.1111/ffe.14564

Samim Alam, Subhas Chandra Mandal

{"title":"Mode-I Moving Semi-Infinite Crack in an Infinitely Long Orthotropic Strip in the Presence of Electromagnetic Field","authors":"Samim Alam, Subhas Chandra Mandal","doi":"10.1111/ffe.14564","DOIUrl":"https://doi.org/10.1111/ffe.14564","url":null,"abstract":"<div>\u0000 \u0000 <p>This research examines the propagation of a mode-I semi-infinite crack with constant velocity in a magnetoelastic orthotropic strip with shear-free boundaries. The novelty of this work lies in addressing the unexplored plane-strain problem of crack propagation in a magnetoelastic orthotropic medium, specifically in the presence of electromagnetic field and shear-free boundary conditions. The mixed boundary value problem is reduced to a Wiener-Hopf equation by employing the Fourier integral transform method to the convenient boundary conditions. The Wiener-Hopf equation is then solved for asymptotic cases to obtain the expressions of the stress intensity factor (SIF) and the crack opening displacement (COD) at the vicinity of the crack. The obtained results are demonstrated graphically. The key finding of this research is that the magnetoelastic coupling coefficient plays a critical role in influencing the behavior of dynamic fractures, as illustrated by graphical results. The accuracy and novelty of the findings are validated by comparison with previously published works, highlighting the added value of this research in understanding magnetoelastic effects on crack propagation.</p>\u0000 </div>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 4","pages":"1479-1495"},"PeriodicalIF":3.1,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143581846","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}

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Fatigue Behavior and Inclusion-Based Lifetime Prediction of 42CrMo4 Steel 42CrMo4钢疲劳行为及基于夹杂物的寿命预测

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-01-09 DOI: 10.1111/ffe.14521

Thomas Kirste, Alexander Schmiedel, Roman Morgenstern, Anja Weidner, Horst Biermann

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Additively Manufactured Scalmalloy via Laser Powder Bed Fusion (L-PBF): Temperature-Dependent Tensile and Fatigue Behaviors 激光粉末床熔合增材制造的鳞状合金：温度相关的拉伸和疲劳行为

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-01-09 DOI: 10.1111/ffe.14549

Md Faysal Khan, Reza Ghiaasiaan, Paul R. Gradl, Shuai Shao, Nima Shamsaei

{"title":"Additively Manufactured Scalmalloy via Laser Powder Bed Fusion (L-PBF): Temperature-Dependent Tensile and Fatigue Behaviors","authors":"Md Faysal Khan, Reza Ghiaasiaan, Paul R. Gradl, Shuai Shao, Nima Shamsaei","doi":"10.1111/ffe.14549","DOIUrl":"https://doi.org/10.1111/ffe.14549","url":null,"abstract":"<p>This study characterized the micro-/defect-structure of laser powder bed fused (L-PBF) Scalmalloy and investigated its mechanical behavior across a wide temperature range. Hot isostatic pressing effectively reduced defect content while maintaining similar microstructure and room temperature tensile properties to stress relief condition; thus, it was applied to all specimens. Tensile and strain-controlled fatigue (fully reversed at 0.005, 0.003, 0.002, and 0.001 mm/mm amplitudes) tests were conducted from cryogenic (−195°C) to elevated temperatures (up to 400°C for tensile and 200°C for fatigue). Tensile strength decreased gradually until 100°C and then sharply at 200°C due to excessive grain boundary sliding. Fatigue resistance was consistent across temperatures at the highest strain amplitude (0.005 mm/mm) but reduced significantly at 200°C and intermediate amplitudes of 0.003 and 0.002 mm/mm. At the lowest amplitude (0.001 mm/mm), fatigue life depended more on crack-initiating defect size than temperature.</p>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"48 4","pages":"1496-1513"},"PeriodicalIF":3.1,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ffe.14549","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143581843","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}

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Adhesively Bonded Composite Patch Repair in Load-Bearing Applications for the Aviation Industry: Manufacturing, Design, and Simulation 航空业承重应用中的粘合剂粘接复合材料补丁修复：制造、设计和模拟

IF 3.1 2区材料科学

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-01-08 DOI: 10.1111/ffe.14552

P. H. E. Fernandes, M. Baumert, S. Dieckhoff, C. Nagel, V. C. Beber

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