International Journal of Fatigue最新文献_第6页

A new viscoelastic-continuum damage model for asphalt concrete with applications to cyclic indirect tensile fatigue tests 沥青混凝土粘弹连续损伤新模型及其在循环间接拉伸疲劳试验中的应用

IF 5.7 2区材料科学

International Journal of Fatigue Pub Date : 2025-07-03 DOI: 10.1016/j.ijfatigue.2025.109144

Hanyu Zhang , Gordon Airey , Yuqing Zhang

{"title":"A new viscoelastic-continuum damage model for asphalt concrete with applications to cyclic indirect tensile fatigue tests","authors":"Hanyu Zhang , Gordon Airey , Yuqing Zhang","doi":"10.1016/j.ijfatigue.2025.109144","DOIUrl":"10.1016/j.ijfatigue.2025.109144","url":null,"abstract":"<div><div>This paper aims to develop a new viscoelastic-continuum damage model for asphalt concrete under cyclic loading and validate its implementation in the finite element (FE) modelling for the cyclic indirect tensile (IDT) fatigue tests. The viscoelastic-continuum damage model and damage evolution law were proposed based on the continuum damage mechanics and pseudo <em>J</em>-integral Paris’ law. The model was then utilised in the experimental characterisations and implemented in the FE modelling. The long-term oven ageing, dynamic modulus, non-destructive cyclic IDT, IDT strength, and cyclic IDT fatigue tests were conducted on both field and laboratory asphalt cores to obtain the model inputs and to validate the FE model. Results show that the proposed model can accurately capture both non-destructive and destructive cycle-by-cycle strain responses of asphalt concrete via FE modelling. The mean absolute values of relative error in most cases are lower than 12% between the FE modelling and non-destructive tests. The FE modelled strain responses in the cyclic IDT fatigue tests match well with the experimental results, distinguishing different stages of strain evolutions. Besides, the present model can effectively characterise the different phases (damage initiation and propagation) of damage growth and different stages (deceleration, acceleration, and instability) of damage growth rate.</div></div>","PeriodicalId":14112,"journal":{"name":"International Journal of Fatigue","volume":"201 ","pages":"Article 109144"},"PeriodicalIF":5.7,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144563145","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 life prediction of induction-hardened S38C axle by a machine learning model integrating gradient physical information 结合梯度物理信息的机器学习模型预测感应淬火S38C轴疲劳寿命

IF 5.7 2区材料科学

International Journal of Fatigue Pub Date : 2025-07-03 DOI: 10.1016/j.ijfatigue.2025.109140

Xiaowen Deng , Yanan Hu , Ziyi Wang , Qianhua Kan , Xu Zhang , Guozheng Kang

{"title":"Fatigue life prediction of induction-hardened S38C axle by a machine learning model integrating gradient physical information","authors":"Xiaowen Deng , Yanan Hu , Ziyi Wang , Qianhua Kan , Xu Zhang , Guozheng Kang","doi":"10.1016/j.ijfatigue.2025.109140","DOIUrl":"10.1016/j.ijfatigue.2025.109140","url":null,"abstract":"<div><div>Induction-hardened S38C axle, as a critical load-bearing component in high-speed train, exhibits superior static strength. However, fatigue failure remains a significant concern for its safety service. The gradient in microstructures and associated mechanical properties induced by induction hardening pose a challenge for accurately predicting its fatigue life. To address this issue, this study proposes a machine learning model integrating gradient physical information. A dataset is constructed, which incorporates gradient-related physical quantities, including static mechanical properties and fatigue life obtained from different layers of S38C axle. The introduction of these physical quantities is demonstrated to improve the prediction accuracy of the data-driven neural network model. To address interpretability limitations of machine learning models, a symbolic regression method based on dimensional analysis is developed to derive an explicit formula for fatigue life prediction. Building on this physical insight, a layered input deep learning (LIDL) model is proposed to capture the interactions between adjacent layers. The LIDL model enables direct mapping from layer-wise static mechanical properties to the fatigue life of multi-layer aggregates, which demonstrates both high prediction accuracy and robust generalization, as well as the potential to be extended to predict the fatigue life of practical S38C axle in future.</div></div>","PeriodicalId":14112,"journal":{"name":"International Journal of Fatigue","volume":"201 ","pages":"Article 109140"},"PeriodicalIF":5.7,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144597401","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

Crystal plasticity modeling of uniaxial tensile and fatigue failure behaviors of laser shock peened aluminum alloy 激光冲击强化铝合金单轴拉伸疲劳破坏行为的晶体塑性建模

IF 5.7 2区材料科学

International Journal of Fatigue Pub Date : 2025-07-03 DOI: 10.1016/j.ijfatigue.2025.109145

Shijie Song , Zhenghao Wu , Jianfeng Zhao , Liucheng Zhou , Shuangquan Guo , Qianhua Kan , Xianmin Chen , Xu Zhang

{"title":"Crystal plasticity modeling of uniaxial tensile and fatigue failure behaviors of laser shock peened aluminum alloy","authors":"Shijie Song , Zhenghao Wu , Jianfeng Zhao , Liucheng Zhou , Shuangquan Guo , Qianhua Kan , Xianmin Chen , Xu Zhang","doi":"10.1016/j.ijfatigue.2025.109145","DOIUrl":"10.1016/j.ijfatigue.2025.109145","url":null,"abstract":"<div><div>Laser Shock Peening (LSP) has emerged as an advanced surface treatment technique for improving the mechanical properties and fatigue resistance of metallic materials, particularly in 7075 aluminum alloy. This study investigates the effects of LSP on the mechanical behaviors of 7075-T7351 aluminum alloy through microstructural characterization, uniaxial tensile tests, fatigue tests, and Crystal Plasticity Finite Element Modeling (CPFEM). Results indicate that LSP introduces a maximum residual compressive stress of 193 MPa and a dislocation density of 5.88 × 10<sup>15</sup> m<sup>-2</sup> at the sample surface. LSP enhances the ultimate strength (from 470 MPa to 480 MPa), together with significant improvements in fatigue limit (from 150 MPa to 160 MPa) and fatigue life. A dislocation-based crystal plasticity model incorporating multiple deformation mechanisms has been developed, which quantitatively captures the material’s tensile and cyclic deformation behavior. Moreover, the integration of CPFEM with the fatigue indicator parameters method enables accurate prediction of high-cycle fatigue life in aluminum alloys. These findings offer mechanistic insights into the role of residual stress and gradient microstructure in fatigue enhancement, which may inform future optimization of LSP treatment strategies for aluminum alloys.</div></div>","PeriodicalId":14112,"journal":{"name":"International Journal of Fatigue","volume":"201 ","pages":"Article 109145"},"PeriodicalIF":5.7,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144589211","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

Compression fatigue behavior of gyroid porous titanium scaffolds manufactured by laser powder bed fusion for bone-implant applications 激光粉末床融合制备的旋转多孔钛骨支架的压缩疲劳性能

IF 5.7 2区材料科学

International Journal of Fatigue Pub Date : 2025-07-01 DOI: 10.1016/j.ijfatigue.2025.109136

Bo Deng , Xuyou Tang , Dechuang Zhang , Yilong Dai , Jianguo Lin , Xian Tong , Yuncang Li , Jixing Lin , Cuie Wen

{"title":"Compression fatigue behavior of gyroid porous titanium scaffolds manufactured by laser powder bed fusion for bone-implant applications","authors":"Bo Deng , Xuyou Tang , Dechuang Zhang , Yilong Dai , Jianguo Lin , Xian Tong , Yuncang Li , Jixing Lin , Cuie Wen","doi":"10.1016/j.ijfatigue.2025.109136","DOIUrl":"10.1016/j.ijfatigue.2025.109136","url":null,"abstract":"<div><div>Additively manufactured porous metals involving Triply Periodic Minimal Surfaces (TPMS) are being paid great attention due to their noteworthy osteogenic potential and ability to eliminate the stress concentrations caused by strut curvatures and nodal points of unit cells in other porous structures. In this study, gyroid porous commercially pure titanium (CP-Ti) scaffolds with porosities of approximately 83, 74, 64, and 54 % and corresponding pore sizes of about 0.89, 0.73, 0.56, and 0.42 mm, respectively referred to as GN8, GN7, GN6, and GN5, were fabricated via selective laser melting using laser powder bed fusion. The quasi-static compressive and compression fatigue behaviors of the scaffolds were systematically investigated. Both their elastic modulus (E) and yield strength (σ<sub>y</sub>) were observed to increase with decreasing porosity, with E increasing from 1.032 to 4.264 GPa and σ<sub>y</sub> increasing from 20.46 to 98.13 MPa. The scaffolds exhibited normalized fatigue strength values ranging over 0.49 to 0.78 at 10<sup>6</sup> cycles and their normalized fatigue strength and fatigue life demonstrated a power-law relationship. Further, both the porosity and the pore size influenced the fatigue performance of the scaffolds; in particular, the normalized fatigue strength and porosity correlated with a power-law relationship at a high confidence level (≥ 0.92). In early cyclic compression, ratcheting drove plastic deformation, while in later stages, fatigue crack initiation and propagation dominated, leading to scaffold fracture. The GN5 showed the highest cell viability of 113 % and the GN8 showed the lowest cell viability of 95 %; the cell viability is believed to have been affected by both the porosity and the pore size of the scaffolds.</div></div>","PeriodicalId":14112,"journal":{"name":"International Journal of Fatigue","volume":"201 ","pages":"Article 109136"},"PeriodicalIF":5.7,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144549351","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

Microstructure-based modelling of steady-state fatigue crack propagation in an Al-Cu-Li alloy 基于显微组织的Al-Cu-Li合金稳态疲劳裂纹扩展模型

IF 5.7 2区材料科学

International Journal of Fatigue Pub Date : 2025-07-01 DOI: 10.1016/j.ijfatigue.2025.109138

Xianghui Zhu , Xusheng Yang , Weijiu Huang , Siwen Wang , Shaodong Zheng , Xin Wang , Mengdi Li

{"title":"Microstructure-based modelling of steady-state fatigue crack propagation in an Al-Cu-Li alloy","authors":"Xianghui Zhu , Xusheng Yang , Weijiu Huang , Siwen Wang , Shaodong Zheng , Xin Wang , Mengdi Li","doi":"10.1016/j.ijfatigue.2025.109138","DOIUrl":"10.1016/j.ijfatigue.2025.109138","url":null,"abstract":"<div><div>This study presents a modified Navarro-de los Rios (NR) model for predicting the steady-state fatigue crack propagation (FCP) rates of an Al-Cu-Li alloy. Incorporating key microstructure-related parameters like cyclic yield strength, crack deflection, and slip reversibility, the model captures the dominant microstructural influences on FCP behavior. The model is composed of loading-condition-related parameters (<span><math><mrow><msub><mi>K</mi><mrow><mi>max</mi></mrow></msub></mrow></math></span> and Δ<span><math><mrow><mi>K</mi></mrow></math></span>) and microstructure-related parameters, enabling it to describe the stress-ratio effect without relying on the controversial crack closure effect. By applying the model, the predicted steady-state FCP rates show high consistency with experimental data at a stress ratio of 0.7. The model further demonstrates that the reduced FCP rates in under-aged specimens result primarily from alternative mechanisms, rather than the conventionally presumed high slip reversibility. Overall, this model offers a framework for understanding and predicting FCP in precipitation-hardened Al alloys, providing insights for material development and optimization strategies in aerospace engineering.</div></div>","PeriodicalId":14112,"journal":{"name":"International Journal of Fatigue","volume":"201 ","pages":"Article 109138"},"PeriodicalIF":5.7,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144549352","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

In-situ characterization of fatigue crack closure and propagation behavior in 1Cr18Ni9Ti steel under a single tensile overload 单次拉伸过载下1Cr18Ni9Ti钢疲劳裂纹闭合和扩展行为的原位表征

IF 5.7 2区材料科学

International Journal of Fatigue Pub Date : 2025-07-01 DOI: 10.1016/j.ijfatigue.2025.109120

Ce Xiao , Yichen Han , Jinke Zhang , Zhuang Ma , Jinxin Liu , Hang Guo , Yanjin Lu , Junfu Chen , Jean-Yves Buffière

{"title":"In-situ characterization of fatigue crack closure and propagation behavior in 1Cr18Ni9Ti steel under a single tensile overload","authors":"Ce Xiao , Yichen Han , Jinke Zhang , Zhuang Ma , Jinxin Liu , Hang Guo , Yanjin Lu , Junfu Chen , Jean-Yves Buffière","doi":"10.1016/j.ijfatigue.2025.109120","DOIUrl":"10.1016/j.ijfatigue.2025.109120","url":null,"abstract":"<div><div>The fatigue crack closure and propagation behavior of 1Cr18Ni9Ti stainless steel under cyclic loading with single tensile overloads at different crack growth stages were investigated using in-situ digital image correlation. The evolution of the crack tip opening displacement and stress intensity factors was analyzed by extracting displacement fields from high-resolution optical microscopy images. The results indicate that under constant amplitude loading, crack closure intensifies with crack growth, with the crack opening stress intensity factor (<span><math><msub><mrow><mi>K</mi></mrow><mrow><mi>o</mi><mi>p</mi></mrow></msub></math></span>) increasing from 9.36 MPa<span><math><msqrt><mrow><mi>m</mi></mrow></msqrt></math></span> at a crack propagation length of 0.3 mm to 28.83 MPa<span><math><msqrt><mrow><mi>m</mi></mrow></msqrt></math></span> at 1.3 mm. The application of a single overload caused significant crack tip blunting, temporarily eliminating crack closure and leading to a sharp reduction in the effective stress intensity factor. Overload retardation is more pronounced in the short crack stage, leading to a 70% reduction in crack propagation rate and requiring approximately 25,000 cycles for recovery, whereas in the long crack stage, recovery occurs within 8,000 cycles. SEM fracture surface analysis confirmed that crack tip blunting played a key role in post-overload retardation, with crack re-initiation occurring at the blunted tip, governing delayed propagation. These findings provide new insights into the fatigue behavior of 1Cr18Ni9Ti steel under variable amplitude loading, contributing to improved fatigue life predictions for aerospace structures.</div></div>","PeriodicalId":14112,"journal":{"name":"International Journal of Fatigue","volume":"201 ","pages":"Article 109120"},"PeriodicalIF":5.7,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144535628","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

Experimental analysis and modelling of fatigue crack initiation in glass/epoxy laminates with stress concentrations 应力集中下玻璃/环氧树脂层合板疲劳裂纹萌生的实验分析与建模

IF 5.7 2区材料科学

International Journal of Fatigue Pub Date : 2025-07-01 DOI: 10.1016/j.ijfatigue.2025.109135

Marino Quaresimin, Paolo Andrea Carraro, Lucio Maragoni, Mirko Simonetto

引用次数: 0

A thermo-chemo-mechanical fatigue phase-field model of thermal barrier coatings under cyclic high-temperature gas exposure 高温气体循环作用下热障涂层热-化学-机械疲劳相场模型

IF 5.7 2区材料科学

International Journal of Fatigue Pub Date : 2025-06-30 DOI: 10.1016/j.ijfatigue.2025.109134

Weidong Wang , Biao Li , Baishun Yang , Yazhi Li

{"title":"A thermo-chemo-mechanical fatigue phase-field model of thermal barrier coatings under cyclic high-temperature gas exposure","authors":"Weidong Wang , Biao Li , Baishun Yang , Yazhi Li","doi":"10.1016/j.ijfatigue.2025.109134","DOIUrl":"10.1016/j.ijfatigue.2025.109134","url":null,"abstract":"<div><div>This study develops a fully coupled thermo-chemo-mechanical phase-field (PF) model that integrates fatigue-induced deterioration mechanisms into the phase-field theoretical framework, enabling simulation of thermal barrier coatings (TBC) failure processes under multiphysics coupling in cyclic high-temperature combustion environments. By integrating computational fluid dynamics (CFD) temperature field analysis with finite element (FE) cyclic loading simulations, we established a phase-field-based FE computational framework. This framework leverages the intrinsic correlation between thermo-chemo-mechanical constitutive equations and fatigue phase-field variables to elucidate the interactive processes of crack evolution and fatigue damage accumulation under synergistic multiphysics interactions. The proposed model reproduces characteristic layered and segmented crack morphologies near the thermally grown oxide (TGO) interface, demonstrating its capability to capture fatigue crack pattern evolution under multiphysics coupling. Compared to conventional models, the proposed framework predicts substantially earlier crack initiation and accelerated progression at higher fatigue damage accumulation rates, confirming the critical role of fatigue degradation in failure processes. The coupled effects of thermal strain and cyclic loading not only accelerate crack nucleation but also induce pronounced segmented crack propagation, revealing the synergistic mechanism of thermo-chemo-mechanical coupling and fatigue damage in TBC failure.</div></div>","PeriodicalId":14112,"journal":{"name":"International Journal of Fatigue","volume":"201 ","pages":"Article 109134"},"PeriodicalIF":5.7,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144565906","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 effect of rafting on the fatigue strength of single crystal superalloy: Experimental investigation and failure mechanism 漂流对单晶高温合金疲劳强度的影响：实验研究及失效机理

IF 5.7 2区材料科学

International Journal of Fatigue Pub Date : 2025-06-29 DOI: 10.1016/j.ijfatigue.2025.109133

Duoqi Shi, Jiangbo Fan, Peng Lin, Yuheng Yun, Xiaoguang Yang

{"title":"The effect of rafting on the fatigue strength of single crystal superalloy: Experimental investigation and failure mechanism","authors":"Duoqi Shi, Jiangbo Fan, Peng Lin, Yuheng Yun, Xiaoguang Yang","doi":"10.1016/j.ijfatigue.2025.109133","DOIUrl":"10.1016/j.ijfatigue.2025.109133","url":null,"abstract":"<div><div>The fatigue strength of single crystal superalloys influenced by γ/γ′ rafting was experimentally investigated and the HCF failure mechanism was revealed. The step-loading method was employed to test the fatigue strengths at 10<sup>7</sup>, 10<sup>6</sup>, and 10<sup>5</sup> after pre-rafting treatment. The effect of rafting states on fatigue strength was quantified using the dimensionless rafting factor. Scanning electron microscope (SEM) and transmission electron microscope (TEM) were utilized to observe the fracture morphology, crack propagation, and dislocation configuration. The results showed that the residual fatigue strengths decreased to 82.2 % of the standard value when the dimensionless rafting factor exceeded 0.43. Pre-rafting would induce crack initiation from γ phase and promote mixed mode fracture of mode-I opening along γ/γ′ interfaces and crystallographic shearing. Moreover, more slip systems were activated with the increase of rafting states, especially the {111} <112> slip system. TEM results illustrated that the decrease in γ/γ′ interface coherence, dislocation climbing and cross slip mechanism would reduce the fatigue strength of rafting specimens.</div></div>","PeriodicalId":14112,"journal":{"name":"International Journal of Fatigue","volume":"201 ","pages":"Article 109133"},"PeriodicalIF":5.7,"publicationDate":"2025-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144515642","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 Lüders band on low cycle fatigue properties of a medium-Mn high strength steel l<s:1> ders带对中mn高强度钢低周疲劳性能的影响

IF 5.7 2区材料科学

International Journal of Fatigue Pub Date : 2025-06-29 DOI: 10.1016/j.ijfatigue.2025.109132

Xiangbo Hu, Xiaogang Wang, Shihui He, Chenghuan Liu, Xiangyun Long, Chao Jiang

{"title":"Effect of Lüders band on low cycle fatigue properties of a medium-Mn high strength steel","authors":"Xiangbo Hu, Xiaogang Wang, Shihui He, Chenghuan Liu, Xiangyun Long, Chao Jiang","doi":"10.1016/j.ijfatigue.2025.109132","DOIUrl":"10.1016/j.ijfatigue.2025.109132","url":null,"abstract":"<div><div>This study focuses on the effect of Lüders band on the low cycle fatigue properties of a medium-Mn high strength steel with pronounced Lüders band phenomenon. Firstly, a Lüders band formation criterion is proposed based on macro-mechanics. This criterion adopts the near-field stress gradient as the key indicator to determine whether a Lüders band can be formed near the notch, and it is well validated using notched specimens with variable radius of curvature. Then, in order to decouple the stress concentration effect brought by the notch itself, a low cycle fatigue criterion based on the local plastic strain amplitude is employed to evaluate the influence of the Lüders band on the fatigue life of the notched specimen. The experimental results show that the Lüders band has a negative effect on the fatigue life of the medium-Mn steel studied. The fatigue crack initiation resistance of the material can be markedly reduced due to the formation of Lüders band. This finding may provide a valuable reference for other high strength steels with plastic instability that are expected to be used in fatigue-critical components.</div></div>","PeriodicalId":14112,"journal":{"name":"International Journal of Fatigue","volume":"200 ","pages":"Article 109132"},"PeriodicalIF":5.7,"publicationDate":"2025-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144518257","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