International Journal of Fatigue最新文献

{"title":"Effect of temperature on fatigue behavior and deformation mechanisms of nickel-based superalloy SU-263","authors":"K. Dinesh ,&nbsp;Barun Bharadwaj Dash ,&nbsp;R. Kannan ,&nbsp;Neeta Paulose ,&nbsp;G.V. Prasad Reddy ,&nbsp;Hariharan Krishnaswamy ,&nbsp;S. Sankaran","doi":"10.1016/j.ijfatigue.2024.108721","DOIUrl":"10.1016/j.ijfatigue.2024.108721","url":null,"abstract":"<div><div>The LCF behavior of SU-263 was investigated at various temperatures (1073, 1123, and 1173 K) and strain amplitudes of ± 0.4 to 0.8% at a constant strain rate of 3 × 10^-3 s⁻¹. The alloy displayed initial hardening followed by extensive cyclic softening until failure. It is observed that the presence of dislocation networks absorbs mobile dislocation, and the shearing of γ′ precipitates were responsible for cyclic softening at 1073 and 1123 K, whereas dissolution of γ′ precipitate and dislocation annihilation were responsible for cyclic softening at 1173 K. At elevated temperatures, the LCF behavior is significantly influenced by time-dependent processes such as dynamic strain aging (DSA), and oxidation. The occurrence of DSA manifests in the form of serrated plastic flow in stress–strain hysteresis loops, reduced half-life plastic strain amplitude, and increased cyclic work hardening. The alloy exhibits linear behavior in the Coffin-Manson (C-M) plot at 1073 and 1173 K. However, the C-M plot shows bi-linear behavior at 1123 K with the corresponding shift in the deformation mechanism at ± 0.5% strain amplitude. This study focuses on understanding the effects of temperature on fatigue behavior and the associated deformation mechanisms by using characterization techniques, such as scanning and transmission electron microscopy.</div></div>","PeriodicalId":14112,"journal":{"name":"International Journal of Fatigue","volume":"192 ","pages":"Article 108721"},"PeriodicalIF":5.7,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142696614","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}

{"title":"Factors determining the torsional fatigue strength in bainitic steels with banded microstructures","authors":"Soma Yoshimura ,&nbsp;Kentaro Wada ,&nbsp;Sungcheol Park ,&nbsp;Hisao Matsunaga","doi":"10.1016/j.ijfatigue.2024.108714","DOIUrl":"10.1016/j.ijfatigue.2024.108714","url":null,"abstract":"<div><div>This study aimed to identify the microstructural factors governing the torsional fatigue strength of bainitic steels. Torsional fatigue tests were performed on two bainitic steels with banded microstructures comprised of soft and hard layers. The soft layers were coarse-grained with low Vickers hardness (<em>HV</em>), while the hard layers were fine-grained with high <em>HV</em>. Both materials possessed similar average <em>HV</em> values but differing band morphologies: a coarse band (CB) with <em>HV</em> = 329 and a fine band (FB) with <em>HV</em> = 314. Interestingly, the FB exhibited a 30 % higher fatigue strength than the CB. Through microscopic observations and finite element analysis, it was established that different fatigue strengths could be attributed to the particular width and array of the bands. The reticular band array in the FB steel raises crack initiation resistance due to the constraint of cyclic plastic deformation. In addition, the narrower spacing of hard layers can impede crack propagation when the extension mode transitions from shear mode to Mode I. In contrast, the columnar array and wider spacing of the bands in the CB steel are likely to provide weaker resistance to crack initiation and propagation, resulting in an inferior fatigue strength.</div></div>","PeriodicalId":14112,"journal":{"name":"International Journal of Fatigue","volume":"192 ","pages":"Article 108714"},"PeriodicalIF":5.7,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142696608","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}

{"title":"Rapid fatigue limit estimation of smart polymer-matrix composite under self-heating bending tests using an innovative automatic approach: Knee method","authors":"L. Dolbachian,&nbsp;W. Harizi,&nbsp;I. Gnaba,&nbsp;Z. Aboura","doi":"10.1016/j.ijfatigue.2024.108684","DOIUrl":"10.1016/j.ijfatigue.2024.108684","url":null,"abstract":"<div><div>In recent years, Polymer-Matrix Composites (PMCs) have gained increasing attention across various sectors. With this growing interest and usage, accurately determining their mechanical properties, including the fatigue properties, has become crucial. Traditional methods for these evaluations are both time-consuming and costly, prompting the development of easier and more cost-effective methods for rapidly estimating the fatigue limits of materials. Among these methods, the self-heating test has emerged as notable. The first innovation of this study lies in determining the fatigue limit through the capacitance measurements of in-situ piezoceramic transducers during the four-point self-heating bending test. This determination was validated using the classical temperature measurement methods. Additionally, a novel method called the “knee method” was developped and employed, representing the second originality of this study, and it has shown very promising results.</div></div>","PeriodicalId":14112,"journal":{"name":"International Journal of Fatigue","volume":"192 ","pages":"Article 108684"},"PeriodicalIF":5.7,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142696610","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}

{"title":"Plasticity-induced crack closure identification during fatigue crack growth in AA2024-T3 by using high-resolution digital image correlation","authors":"Florian Paysan,&nbsp;David Melching,&nbsp;Eric Breitbarth","doi":"10.1016/j.ijfatigue.2024.108703","DOIUrl":"10.1016/j.ijfatigue.2024.108703","url":null,"abstract":"<div><div>Fatigue crack growth in ductile materials is primarily driven by the interaction between damaging and shielding mechanisms. In the Paris regime, the predominant mechanism for retardation is plasticity-induced crack closure (PICC). However, some of the mechanisms behind this phenomenon are still unclear. Identifying and separating the three-dimensional aspect from other shielding aspects during experiments is extremely complex. In this paper, we analyze the crack opening kinematics based on local crack opening displacement measurements in both 2D high-resolution digital image correlation data and 3D finite element simulations. The results confirm that the crack opening stress intensity factor <span><math><msub><mrow><mi>K</mi></mrow><mrow><mi>op</mi></mrow></msub></math></span> differs along the crack path. we present a new method to determine <span><math><msub><mrow><mi>K</mi></mrow><mrow><mi>op</mi></mrow></msub></math></span> at the crack front allowing to identify PICC as the predominant shielding mechanism in fatigue crack growth experiments. Furthermore, this work contributes to the discussion on the damage-reducing effect of PICC, since we find that the influence on fatigue damage in the plastic zone remains negligible when the crack is closed and crack surface contact is directed towards the surface.</div></div>","PeriodicalId":14112,"journal":{"name":"International Journal of Fatigue","volume":"192 ","pages":"Article 108703"},"PeriodicalIF":5.7,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142696609","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}

{"title":"Corrosion fatigue behavior of cast iron in simulated combustion product solutions of ammonia and methanol fuels","authors":"Yong Cai ,&nbsp;Ziming Wang ,&nbsp;Yihu Tang ,&nbsp;Congcong Xu ,&nbsp;Yingwei Song ,&nbsp;Kaihui Dong ,&nbsp;En-Hou Han","doi":"10.1016/j.ijfatigue.2024.108715","DOIUrl":"10.1016/j.ijfatigue.2024.108715","url":null,"abstract":"<div><div>The clean fuels of ammonia and methanol are used to replace diesel in shipbuilding industry, but there exists corrosion risk for the engine parts in combustion products. The corrosion fatigue behavior of cylinder liners cast iron in simulated combustion product solutions of ammonia, methanol and diesel fuels were investigated. The corrosion rate and corrosion fatigue sensitivity in the three simulated solutions are ammonia fuel &lt; diesel fuel &lt; methanol fuel. The type B graphite causes more severe matrix corrosion than type A flake graphite, and the ternary phosphorus eutectic has no significant effect on corrosion. For ammonia fuel, fatigue damage is dominated by stress concentration induced by flake graphite and phosphorous eutectic. For methanol and diesel, fatigue damage is mainly dominated by corrosion process induced by flake graphite.</div></div>","PeriodicalId":14112,"journal":{"name":"International Journal of Fatigue","volume":"191 ","pages":"Article 108715"},"PeriodicalIF":5.7,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142663098","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}

{"title":"A novel implementation of the cohesive zone model for the fatigue propagation of delamination in composites using a sequential static fatigue algorithm","authors":"S. Safaei,&nbsp;A. Bernasconi,&nbsp;M. Carboni,&nbsp;L. Martulli","doi":"10.1016/j.ijfatigue.2024.108712","DOIUrl":"10.1016/j.ijfatigue.2024.108712","url":null,"abstract":"<div><div>Composite materials are particularly exposed to delamination under fatigue loading conditions, which can significantly compromise their structural integrity. The ability to accurately and efficiently estimate the progression of delamination under fatigue is crucial for enhancing the safety and reliability of lightweight composite structures. The aim of this paper is to implement the cohesive elements formulation in a Sequential Static Fatigue (SSF) algorithm named C-SSF. The C-SSF algorithm simulates delamination propagation under fatigue loading by conducting a series of sequential static simulations. The accuracy of the C-SSF method is validated by comparing its results with experimental data from two published case studies. The results demonstrate that this approach can effectively simulate delamination growth under fatigue loading. Compared to a similar approach based on the Virtual Crack Closure Technique (VCCT), the C-SSF algorithm provided superior accuracy, especially when large and curved delamination fronts were involved. The C-SSF method proved its capability to simulate propagation of delamination in composite structures, making it a valuable tool for modelling the fatigue behaviour of other similar structures.</div></div>","PeriodicalId":14112,"journal":{"name":"International Journal of Fatigue","volume":"192 ","pages":"Article 108712"},"PeriodicalIF":5.7,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142702108","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}

{"title":"Experimental evaluation of multiaxial test-tailored specifications based on Fatigue Damage multi-Spectra","authors":"M. Aimé ,&nbsp;A. Banvillet ,&nbsp;L. Khalij ,&nbsp;E. Pagnacco ,&nbsp;E. Chatelet ,&nbsp;R. Dufour","doi":"10.1016/j.ijfatigue.2024.108702","DOIUrl":"10.1016/j.ijfatigue.2024.108702","url":null,"abstract":"<div><div>In the industrial sector, laboratory tests are frequently performed to evaluate the durability of structures under mechanical loads. These tests typically involve sequentially applied uniaxial loads, even though operational conditions are often multiaxial. To address this inconsistency, a new frequency-domain approach has been developed to generate test-tailored specifications for multiaxial vibration based on the Fatigue Damage multi-Spectrum (FDmS). This paper analyzes this procedure through experimental trials, showing the accuracy of the generated multiaxial test-tailored specifications, as well as its ability to synthesize and generate cross-correlations.</div></div>","PeriodicalId":14112,"journal":{"name":"International Journal of Fatigue","volume":"191 ","pages":"Article 108702"},"PeriodicalIF":5.7,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142696613","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}

{"title":"A new nonlinear fatigue cumulative damage model based on load interaction and strength degradation","authors":"Qian Xiao,&nbsp;Xilin Wang,&nbsp;Daoyun Chen,&nbsp;Xinjian Zhou,&nbsp;Xinlong Liu,&nbsp;Wenbin Yang","doi":"10.1016/j.ijfatigue.2024.108709","DOIUrl":"10.1016/j.ijfatigue.2024.108709","url":null,"abstract":"<div><div>A new nonlinear fatigue cumulative damage model is proposed to address the challenge of insufficient accuracy in calculations stemming from nonlinear cumulative damage models that fail to account for strength degradation effects and interactions among multi-level loads. This model, an enhancement of the Aeran fatigue damage model, incorporates stress ratios to capture load interactions and includes a logarithmic residual strength degradation model extended to multi-level stress states. Comparative analysis of this model against the Miner model and two other models across various material fatigue datasets shows superior predictive accuracy. Specifically, the new model demonstrates a 74.43% improvement over the Aeran model under six-level loading conditions. Its straightforward mathematical formulation makes it practical for engineering applications in fatigue life prediction.</div></div>","PeriodicalId":14112,"journal":{"name":"International Journal of Fatigue","volume":"191 ","pages":"Article 108709"},"PeriodicalIF":5.7,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142663097","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}

{"title":"Effect of three-stage heat treatment on the composite waveform and variable amplitude fatigue properties of TC4 titanium alloy pulsed laser-arc hybrid welded joints","authors":"Rui Su ,&nbsp;Qianli Liu ,&nbsp;Haizhou Li ,&nbsp;Dirui Wang ,&nbsp;Jinquan Guo ,&nbsp;Shengbo Li ,&nbsp;Wantong Wang ,&nbsp;Aixin Feng ,&nbsp;Zhongtao Sun ,&nbsp;Hui Chen","doi":"10.1016/j.ijfatigue.2024.108673","DOIUrl":"10.1016/j.ijfatigue.2024.108673","url":null,"abstract":"<div><div>Titanium alloy welded structures are often subjected to cyclic loading with composite waveform and variable amplitude during actual service, exacerbating the damage to the joints and leading to low fatigue life. Therefore, a three-stage heat treatment was adopted in this work to enhance the fatigue life of TC4 titanium alloy pulsed laser-arc hybrid welded joints, and its microstructure evolution and fracture mechanism were investigated. The results show that the high-density phase boundary formed by the finely dispersed secondary α phase precipitated after heat treatment was the main reason for the increase of life by 3 times. The crack initiation was mainly due to the accumulation of Pyramidal &lt; c + a &gt; dislocations and base &lt; a &gt; dislocations. The difference was that, combined with molecular dynamics calculations and characterization by TEM and EBSD, it was found that the heat-treated cracks underwent dislocation accumulation, deformation twinning, and low-angle grain boundaries before the initiation of the lamellar α-concave position.</div></div>","PeriodicalId":14112,"journal":{"name":"International Journal of Fatigue","volume":"191 ","pages":"Article 108673"},"PeriodicalIF":5.7,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142663222","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}

{"title":"Enhancing fatigue resistance of Cr-Mn-Fe-Co-Ni multi-principal element alloys by varying stacking fault energy and sigma (σ)-phase assisted grain-size reduction","authors":"Shubham Sisodia ,&nbsp;Guillaume Laplanche ,&nbsp;Maik Rajkowski ,&nbsp;Ankur Chauhan","doi":"10.1016/j.ijfatigue.2024.108704","DOIUrl":"10.1016/j.ijfatigue.2024.108704","url":null,"abstract":"<div><div>This study investigates two key aspects of the low cycle fatigue (LCF) behavior of alloys from the Cr-Mn-Fe-Co-Ni system at room temperature: (1) the influence of stacking fault energy (SFE) in single-phase face-centered cubic (FCC) alloys and (2) a grain size reduction triggered by the precipitation of a small amount of σ-phase. The first effect is investigated using model alloys (Cr₂₆Mn₂₀Fe₂₀Co₂₀Ni₁₄ and Cr₁₄Mn₂₀Fe₂₀Co₂₀Ni₂₆ in at.%, grain size: ∼60 µm), which have distinct SFEs at room temperature. A reduction in SFE from 69 to 23 mJ/m² results in a 10 to 20 % increase in tensile/compressive peak stresses, i.e., cyclic strength, across all examined strain amplitudes (±0.3 %, ±0.5 %, and ±0.7 %) while maintaining comparable fatigue lives. Despite its higher cyclic strength, the low-SFE alloy exhibits delayed, and less evolved dislocation substructures than the other alloy. In both single-phase alloys, fatigue cracks originated from the surface reliefs, surface-exposed coherent annealing twin boundaries, and occasionally from high-angle grain boundaries. However, the crack propagation rate was slower in the low-SFE alloy, contributing to its superior fatigue resistance. By aging the low-SFE Cr₂₆Mn₂₀Fe₂₀Co₂₀Ni₁₄ alloy differently, we could induce the precipitation of ∼5 % σ-phase during recrystallization, which strongly reduced the FCC grain size to ∼5 µm. With this microstructure, the cyclic strength increased by 50–65 % and remained more stable during fatigue testing while maintaining a comparable life. The σ-precipitates were found to deflect and arrest fatigue cracks, while extensive deformation twinning around cracks complements slip activity and reduces crack propagation rate. Overall, the σ-phase-assisted grain size reduction is 3 to 5 times more effective in improving cyclic strength than SFE reduction.</div></div>","PeriodicalId":14112,"journal":{"name":"International Journal of Fatigue","volume":"191 ","pages":"Article 108704"},"PeriodicalIF":5.7,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142696680","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}