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Fatigue & Fracture of Engineering Materials & Structures最新文献

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The fatigue responses of 3D-printed polylactic acid (PLA) parts with varying raster angles and printing speeds 不同光栅角度和打印速度下 3D 打印聚乳酸（PLA）部件的疲劳响应
IF 3.1 2区 材料科学
Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2024-08-01 DOI: 10.1111/ffe.14406
Murat Horasan, Ismail Sarac
{"title":"The fatigue responses of 3D-printed polylactic acid (PLA) parts with varying raster angles and printing speeds","authors":"Murat Horasan,&nbsp;Ismail Sarac","doi":"10.1111/ffe.14406","DOIUrl":"https://doi.org/10.1111/ffe.14406","url":null,"abstract":"<p>In this study, the fatigue behavior of FDM-3D printed polylactic acid (PLA) materials was investigated by rotary bending fatigue tests and finite element studies with varying printing speed and raster angle parameters. Fatigue test specimens were manufactured at five different raster angles (0°, 30°, 45°, 60°, and 90°) and two different printing speeds (20 and 80 mm/s). The effect of printing speed was evaluated at high print speed variation range (20 and 80 mm/s print speeds). It was noticed that the change in raster angle affects the fatigue life very significantly. The highest fatigue life was obtained at 30° raster angle, while the lowest fatigue life was found at 90° raster angle. Increasing the printing speed from 20 to 80 mm/s decreased the fatigue life of all specimens. The derived results from the finite element analyses were consistent with the experimental results.</p>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"47 10","pages":"3693-3706"},"PeriodicalIF":3.1,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ffe.14406","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142158589","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
Fatigue-induced stress redistribution in prestressed concrete beams modeled using the constitutive hypothesis of inter-aggregate degradation 利用集料间降解构成假设模拟预应力混凝土梁的疲劳诱导应力再分布
IF 3.1 2区 材料科学
Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2024-07-31 DOI: 10.1111/ffe.14388
Abedulgader Baktheer, Soheil Esfandiari, Mario Aguilar, Henrik Becks, Martin Classen, Rostislav Chudoba
{"title":"Fatigue-induced stress redistribution in prestressed concrete beams modeled using the constitutive hypothesis of inter-aggregate degradation","authors":"Abedulgader Baktheer,&nbsp;Soheil Esfandiari,&nbsp;Mario Aguilar,&nbsp;Henrik Becks,&nbsp;Martin Classen,&nbsp;Rostislav Chudoba","doi":"10.1111/ffe.14388","DOIUrl":"https://doi.org/10.1111/ffe.14388","url":null,"abstract":"<p>Despite of intensive research on concrete fatigue, the transfer of fatigue characteristics determined at the material level to the structural level remains a challenging issue. In this paper, the propagation of fatigue-induced damage through the concrete structure is analyzed using a microplane fatigue model for concrete recently developed by the authors. To this end, our recent experimental study in which the fatigue propagation was monitored at the structural level represented by prestressed concrete beams is used to derive a general interpretation of the stress redistribution process using of the developed model. The numerical studies show that the developed microplane fatigue model provides a powerful computational tool for in-depth analysis of the correspondence between the fatigue behavior at the material and structural scales in a wide range of load configurations. In addition, the thermodynamically based constitutive model allows for the quantification of the energy dissipation during the process, revealing the possibility of deriving material-specific energetic characteristics that can further help to make the predictions of fatigue life more accurate.</p>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"47 10","pages":"3673-3692"},"PeriodicalIF":3.1,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ffe.14388","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142158675","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
Fracture behavior analysis and fatigue assessment of the spring clip in heavy-haul railway 重载铁路弹簧夹的断裂行为分析和疲劳评估
IF 3.1 2区 材料科学
Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2024-07-30 DOI: 10.1111/ffe.14401
Yu-Xuan Wang, Wen-Jun Xiao, Zhi-Feng Wang, Yong Liu, Er-Bo Wang, Hong-Tao Chang
{"title":"Fracture behavior analysis and fatigue assessment of the spring clip in heavy-haul railway","authors":"Yu-Xuan Wang,&nbsp;Wen-Jun Xiao,&nbsp;Zhi-Feng Wang,&nbsp;Yong Liu,&nbsp;Er-Bo Wang,&nbsp;Hong-Tao Chang","doi":"10.1111/ffe.14401","DOIUrl":"https://doi.org/10.1111/ffe.14401","url":null,"abstract":"<p>This paper proposes a novel method based on a numerical simulation approach and fatigue fracture theory to analyze the fracture behavior and assess the fatigue life of spring clips. To this end, the finite element (FE) model of the vehicle-track-foundation system was developed including the key parts of the type II fastening system. Meanwhile, the spring clip FE model was validated through the natural vibration characteristics. Subsequently, the numerical simulations were performed under various working conditions to obtain the fatigue characteristics of the spring clips. The fatigue crack initiation life and damage were analyzed using FE results for the spring clips with <i>ε-N</i> curve and Brown-Miller criterion. Moreover, based on the initial crack geometry of the spring clips, the maximum circumferential stress criterion with the Paris equation was employed to analyze the crack extension behavior and assess the fatigue crack extension life.</p>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"47 10","pages":"3658-3672"},"PeriodicalIF":3.1,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142158673","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
Creep damage evolution by cavity nucleation and growth considering the cavity closure under cyclic loading conditions 考虑到循环加载条件下的空腔闭合，空腔成核和生长引起的蠕变损伤演变
IF 3.1 2区 材料科学
Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2024-07-29 DOI: 10.1111/ffe.14389
Le Xu, Lv-Yi Cheng, Kai-Shang Li, Ken Suzuki, Hideo Miura, Run-Zi Wang
{"title":"Creep damage evolution by cavity nucleation and growth considering the cavity closure under cyclic loading conditions","authors":"Le Xu,&nbsp;Lv-Yi Cheng,&nbsp;Kai-Shang Li,&nbsp;Ken Suzuki,&nbsp;Hideo Miura,&nbsp;Run-Zi Wang","doi":"10.1111/ffe.14389","DOIUrl":"https://doi.org/10.1111/ffe.14389","url":null,"abstract":"<p>Creep damage assessment is crucial for ensuring the long-term reliability of key components operating at high temperatures. However, the existing studies on creep damage are mainly focused on constant loading conditions, while the effect of cyclic loading, which is a common loading mode in practice, remains unclear. In this paper, a series of stress-controlled cyclic creep tests on the Inconel 718 superalloy were performed to investigate the influence of cyclic loading on creep damage evolution. The ex-situ microstructural analyses, including fracture surface observations and EBSD measurements, were conducted to reveal the damage mechanisms under cyclic creep conditions. Furthermore, a cavity nucleation and growth model that accounts for the additional cavity closure was developed for the healing effect of cyclic creep damage evolution. The prediction results were consistent with the experimental data of cavity nucleation life and experimental life within a factor of 2.</p>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"47 10","pages":"3945-3960"},"PeriodicalIF":3.1,"publicationDate":"2024-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ffe.14389","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142158674","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
Fatigue performance of bonding-assisted fillet weld roots by inserting adhesive material 插入粘合材料的粘合辅助角焊缝根部的疲劳性能
IF 3.1 2区 材料科学
Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2024-07-25 DOI: 10.1111/ffe.14400
Mao Jiahao, Hirohata Mikihito, Xu Yifei, Chang Kyong-Ho
{"title":"Fatigue performance of bonding-assisted fillet weld roots by inserting adhesive material","authors":"Mao Jiahao,&nbsp;Hirohata Mikihito,&nbsp;Xu Yifei,&nbsp;Chang Kyong-Ho","doi":"10.1111/ffe.14400","DOIUrl":"10.1111/ffe.14400","url":null,"abstract":"<p>This study proposes a novel method to prevent fatigue cracks at the root of fillet welds in steel bridge supports by inserting epoxy resin as an adhesive material. A total of 36 specimens, categorized into welded-only and bonding-assisted types, were subjected to a series of four-point bending fatigue tests to simulate cyclic tensile stress conditions. Additionally, finite element analysis was employed to investigate the impact of epoxy insertion on stress distribution near the weld root. The results demonstrated that bonding-assisted specimens exhibited significantly improved fatigue life compared to welded-only specimens, with a notable reduction in tensile stress at the weld root. Furthermore, a displacement-based method was employed to evaluate weld root fatigue performance, yielding consistent results. These findings highlight the potential of integrating adhesive bonding in fillet welds to improve the durability and service life of steel bridge structures by effectively mitigating fatigue-related issues.</p>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"47 10","pages":"3646-3657"},"PeriodicalIF":3.1,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ffe.14400","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141805539","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
The effect of residual stress on high-cycle fatigue properties and its evaluation method of Ti-6Al-4V alloy 残余应力对 Ti-6Al-4V 合金高循环疲劳性能的影响及其评估方法
IF 3.1 2区 材料科学
Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2024-07-24 DOI: 10.1111/ffe.14397
Shuai Chang, Kun Zhang, Jianping Tan, Shantung Tu
{"title":"The effect of residual stress on high-cycle fatigue properties and its evaluation method of Ti-6Al-4V alloy","authors":"Shuai Chang,&nbsp;Kun Zhang,&nbsp;Jianping Tan,&nbsp;Shantung Tu","doi":"10.1111/ffe.14397","DOIUrl":"10.1111/ffe.14397","url":null,"abstract":"<p>To assess the contribution of residual stress to the improvement of high-cycle fatigue (HCF) properties, HCF tests are performed on Ti-6Al-4V specimens with different residual stress levels but no other evident surface state modification induced by machining. Results indicate that compressive residual stress induced by machining significantly improves the HCF performance of Ti-6Al-4V specimens. Of all the specimens, the fatigue strength of specimens with a surface residual stress level of −400 MPa is increased by approximately 16.4%. Furthermore, to accurately predict the fatigue life based on three mean stress correction equations (e.g., Walker, Goodman, and Smith–Watson–Topper), the method of reducing surface residual stress by a reduction factor and then adding to the mean stress is proposed. A reduction factor of 0.55 is found to be appropriate for the alloy under the test condition, with majority of the predicted data falling within a factor of three scatter band.</p>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"47 10","pages":"3633-3645"},"PeriodicalIF":3.1,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141808309","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
Analytical assessment of low- and high-cycle fatigue behavior of welded components considering the linear hardening model 考虑线性硬化模型的焊接部件低周期和高周期疲劳行为分析评估
IF 3.1 2区 材料科学
Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2024-07-22 DOI: 10.1111/ffe.14393
Shaoqing Liu, Linshen Lei, Tang Gu, Tian Lan, Chengqi Wang, Yangxuan Su, Lingjun Wang, Xiaochao Liu
{"title":"Analytical assessment of low- and high-cycle fatigue behavior of welded components considering the linear hardening model","authors":"Shaoqing Liu,&nbsp;Linshen Lei,&nbsp;Tang Gu,&nbsp;Tian Lan,&nbsp;Chengqi Wang,&nbsp;Yangxuan Su,&nbsp;Lingjun Wang,&nbsp;Xiaochao Liu","doi":"10.1111/ffe.14393","DOIUrl":"10.1111/ffe.14393","url":null,"abstract":"<p>Welded components are highly vulnerable to fatigue failures due to stress concentrations and material imperfections. This study develops an analytical framework that predicts both high-cycle (HCF) and low-cycle (LCF) fatigue lives of welded joints using a structural strain parameter. By employing a linear hardening model, the method effectively translates structural stress into structural strain, providing a reliable metric for assessing fatigue life, especially in LCF conditions. Validated against experimental data from 62 longitudinal gusset joints, the approach proves both reliable and practical. This simplified method facilitates easier fatigue assessments, encouraging its wider use and potential standardization in engineering, thus improving the predictability of welded structures' performance.</p>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"47 10","pages":"3601-3618"},"PeriodicalIF":3.1,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141816962","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
Effects of random meso-defects on fatigue behavior of welded joints: Damage evolution and lifetime prediction 随机中间缺陷对焊接接头疲劳行为的影响：损伤演变和寿命预测
IF 3.1 2区 材料科学
Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2024-07-22 DOI: 10.1111/ffe.14390
Mengyue Xu, Xin Huang, Shaolin Li, Hongyu Qi, Xiaoguang Yang, Duoqi Shi
{"title":"Effects of random meso-defects on fatigue behavior of welded joints: Damage evolution and lifetime prediction","authors":"Mengyue Xu,&nbsp;Xin Huang,&nbsp;Shaolin Li,&nbsp;Hongyu Qi,&nbsp;Xiaoguang Yang,&nbsp;Duoqi Shi","doi":"10.1111/ffe.14390","DOIUrl":"10.1111/ffe.14390","url":null,"abstract":"<p>Random meso-scale defects within welded joints can affect the structural damage process and cause dispersion in the fatigue lifetime of welded joints. In this paper, a meso-scale stochastic damage approach is used to investigate the effect of random, meso-scale defects on the fatigue damage lifetime of welded joints under different loads. First, we established an elastic–plastic fatigue damage model considering meso-defects in the weld metal. Secondly, the fatigue lifetimes for gas tungsten arc welding and gas metal arc welding welded joints were predicted, with most of the predictions within the twofold dispersion factor. Thirdly, the Monte Carlo simulation method was used to investigate the influence of meso-defect size on the fatigue lifetime dispersion degree, and the fatigue lifetime distribution under different loads was statistically analyzed.</p>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"47 10","pages":"3619-3632"},"PeriodicalIF":3.1,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141814483","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 under variable amplitude loadings in AlSi10Mg alloy components produced by laser powder bed fusion 激光粉末床熔融技术生产的 AlSi10Mg 合金部件在变幅载荷作用下的疲劳行为
IF 3.1 2区 材料科学
Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2024-07-19 DOI: 10.1111/ffe.14396
Rui Filipe Fernandes, Joel de Jesus, Luis Pires Borrego, José António Ferreira, Ricardo Branco, José Domingos Costa
{"title":"Fatigue behavior under variable amplitude loadings in AlSi10Mg alloy components produced by laser powder bed fusion","authors":"Rui Filipe Fernandes,&nbsp;Joel de Jesus,&nbsp;Luis Pires Borrego,&nbsp;José António Ferreira,&nbsp;Ricardo Branco,&nbsp;José Domingos Costa","doi":"10.1111/ffe.14396","DOIUrl":"10.1111/ffe.14396","url":null,"abstract":"<p>This study investigates the fatigue behavior of AlSi10Mg alloy manufactured via laser powder bed fusion under variable amplitude loading conditions. Two material conditions were examined: as-built and stress relief, with the later involving a lower temperature compared to the conventional heat treatments, aimed at preventing the Al-Si network rupture. Fatigue tests were conducted using two distinct loading spectra: block loading and random loading. While the stress relief reduced the monotonic properties of the material, it resulted in increased fatigue performance due to the homogenization of residual stress throughout the depth. Fracture surface analysis revealed initiation points on subsurface defects, with both block and random loading cases exhibiting overload markings from loading transitions. The predictive model incorporating crack initiation and propagation periods yielded good results, with the equivalent stress range approach providing higher quality estimation compared to the real stress range approach.</p>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"47 10","pages":"3930-3944"},"PeriodicalIF":3.1,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141822563","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 physics-informed neural network for creep life prediction of austenitic stainless steels in air and liquid sodium 用于预测奥氏体不锈钢在空气和液态钠中蠕变寿命的物理信息神经网络
IF 3.1 2区 材料科学
Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2024-07-19 DOI: 10.1111/ffe.14395
Huian Mei, Lingfeng Pan, Cheng Gong, Xiaotao Zheng
{"title":"A physics-informed neural network for creep life prediction of austenitic stainless steels in air and liquid sodium","authors":"Huian Mei,&nbsp;Lingfeng Pan,&nbsp;Cheng Gong,&nbsp;Xiaotao Zheng","doi":"10.1111/ffe.14395","DOIUrl":"10.1111/ffe.14395","url":null,"abstract":"<p>Creep life prediction of component materials exposed to air and liquid sodium environments is critical to ensure the safe operation and structural integrity of a sodium-cooled fast reactor. In this paper, a method for predicting the creep life of a wide range of austenitic stainless steels in air and liquid sodium was proposed based on a physics-informed neural network. Based on the established datasets for sodium corrosion rates and creep life in air and liquid sodium, the predictive performance of physical equations, conventional machine learning models, and the proposed model were assessed. Subsequently, a data-driven creep life assessment framework was established, providing insight into the engineering application of machine learning methods in high-temperature structure assessment. The results show that the creep fracture of austenitic stainless steel is accelerated by liquid sodium corrosion. The proposed physics-informed neural network exhibits enhanced suitability and accuracy for predicting the sodium corrosion rate and creep life than physical equations and conventional machine learning methods.</p>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"47 10","pages":"3584-3600"},"PeriodicalIF":3.1,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141823278","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
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