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Study on shear fatigue damage behavior and evolution of Fe-Pb thin walled heterogeneous welded material components under hot isostatic pressure Int. J. Fatigue (IF 5.7) Pub Date : 2025-02-07 Siyuan Ding, Jianhua Liu, Jinfang Peng, Hechang Li, Bo Li, Minhao Zhu
For the first time, 45 steel and Pb were welded to form Fe-Pb thin-walled heterogeneous welding material components, which can be used in heavy-duty and radiation resistant environments. This study conducted comparative shear fatigue tests under different alternating loads under the conditions of hot isostatic pressing (HIP) control technology. The experimental results are as follows: after HIP treatment
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Isothermal and thermomechanical fatigue of 316H stainless steel: Damage mechanism and life prediction Int. J. Fatigue (IF 5.7) Pub Date : 2025-02-07 Jingyu Yang, Yiming Zheng, Fang Wang, Kang Wang, Xi Yuan, Xu Chen, Bingbing Li
In-phase and out-of-phase thermomechanical fatigue (TMF) tests with the temperature cycling from 300 °C to 650 °C were carried out on 316H stainless steel. The isothermal fatigue (IF) tests at 650 °C were performed for comparison. A wide range of strain amplitudes from 0.185 % to 1.0 % were used. Results showed that TMF loading resulted in the more pronounced cyclic hardening than IF loading, and the
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Microstructural origins of cycle hardening behaviors and fracture mechanisms of 304L stainless steel during low-cycle fatigue Int. J. Fatigue (IF 5.7) Pub Date : 2025-02-06 Wei Jiang, Shaojia Shi, Heng Wang, Kang Wei, Yonghao Zhao
Low-cycle fatigue behaviors of 304L stainless steel were investigated under different strain amplitudes (0.25 %, 0.3 %, 0.4 %, 0.5 %) and number of cycles to establish the relationship between macro-properties and micro-mechanisms. In all cases of strain amplitude, the 304L stainless steel displays a slight degree of cycle softening subsequent to the initial hardening in the cyclic stress–strain response
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The coupling effects of oxidation and temperature on the low cycle fatigue deformation behavior of CM 247 DS LC alloy Int. J. Fatigue (IF 5.7) Pub Date : 2025-02-06 S. Chandra, N. Paulose, R.K. Rai
The role of environmental degradation, particularly oxidation, on the low cycle fatigue response of rotating blades of aero-engine operating at significantly high temperatures is extremely important as it adversely affects its performance. The present work investigates the coupling effect of prior cyclic oxidation and temperature on the low cycle fatigue (LCF) fatigue behaviour of CM 247 DS LC Ni-based
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Equivalent initial damage sizes for PBF-LB Ti-6Al-4V notched geometries Int. J. Fatigue (IF 5.7) Pub Date : 2025-02-01 Zlatan Kapidžić, Stefan B. Lindström, Johan Moverare, Thomas Lindström, Carl-Johan Thore, Daniel Leidermark, Manja Franke
We propose a fracture mechanics based method for determination of equivalent initial damage size (EIDS) distribution in as-built additively manufactured (AM) Ti-6Al-4V notched geometries. The crack growth model is shown to correctly capture the effect of the stress raisers and load ratio on the fatigue life of notched specimens. Results of constant amplitude fatigue tests on notched round bar specimens
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Influence of micro-shot peening and traditional shot peening on fatigue performance and fracture behaviors of Ti-6Al-4V alloy Int. J. Fatigue (IF 5.7) Pub Date : 2025-01-31 Dongdong Ji, Haodong Chen, Jiwang Zhang, Kaixin Su, Xingyu Chen
Ti-6Al-4V alloy is subjected to complex environmental conditions, often requiring enhanced fatigue performance in engineering applications. This study provides a comparative analysis of the effects of micro-shot peening (MSP) and traditional shot peening (TSP) on the fatigue performance of Ti-6Al-4V alloy. The results indicate that TSP specimens develop a work-hardened layer with high hardness and
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Enhanced strength but deteriorated fatigue crack propagation behaviors of an aviation Al-Li alloy sheet caused by solid-solution time extension Int. J. Fatigue (IF 5.7) Pub Date : 2025-01-31 Xu-feng Cai, Hui Xiang, Zhen-zhen Liu, Guang-jun Zeng, Tian-le Liu, Zhi-min Cai, Hua Zhou, Bao Qi, Dan-Yang Liu, Jin-feng Li
The fatigue crack propagation (FCP) property and strength in T8-aged Al-Li alloy sheets with varying solid-solution time were investigated and the influence mechanism of the secondary phase on fatigue crack initiation was revealed. The results demonstrate that both grain dimension and recrystallization texture of the alloys with different solid-solution time are similar, but the average diameter of
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Effect of tempered sorbite/bainite microstructures on fatigue crack propagation and closure in Fe-Cr-Mo-Mn steel Int. J. Fatigue (IF 5.7) Pub Date : 2025-01-31 Ning Guo, Kuantao Sun, Bingtao Tang, Fu Guo, Guangchun Xiao, Jilai Wang
The large-scale wind power spindles are prone to fatigue failure under cyclic loading, particularly, due to microstructure inhomogeneity of tempered large-scale forgings, it is of great significance to explore the influence of non-uniform tempered sorbite/bainite (TS/B) on fatigue crack propagation and closure effects. In this paper, the fatigue crack propagation behavior of coarse TS/B and fine TS/B
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Creep-fatigue behavior of a friction stir welding 7050-T7451 aluminum alloy: Microstructure evolution and microscopic damage mechanisms Int. J. Fatigue (IF 5.7) Pub Date : 2025-01-30 Huan Wang, Weifeng Xu, Yanfei Wang, Hongjian Lu
Creep-fatigue behavior of a friction stir welding (FSW) Al-Zn-Mg-Cu alloy at different temperatures was investigated. The results show that creep damage is much higher than fatigue damage when a holding time is introduced at the peak load. After creep-fatigue, η’ and η phases are reprecipitated in the weld nugget zone (WNZ) and coarsen with increasing temperature. When the creep-fatigue temperature
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Facet cracking mechanism of Ti-2Al-2.5Zr alloy under high-cycle fatigue loadings at room temperature and 350°C Int. J. Fatigue (IF 5.7) Pub Date : 2025-01-28 Jingtai Yu, Bingbing Li, Zuoliang Ning, Xiang Guo, Jun Wu, Gang Chen
The interesting phenomenon of facet cracking of Ti-2Al-2.5Zr alloy exposed to high-cycle fatigue (HCF) loading at the high temperature of 350 °C was reported for the first time. Moreover, the HCF tests at room temperature were also conducted for comparison. The crack nucleation mechanisms with essential differences at both room and elevated temperatures were comparatively studied based on the elaborate
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Fatigue behaviors and cellular damages of bead-welded foam of poly(ether-b-amide) under cyclic compression Int. J. Fatigue (IF 5.7) Pub Date : 2025-01-28 Ping Zhu, Johannes Meuchelböck, Chao Qiu, Quanxiao Dong, Xia Dong, Dujin Wang, Volker Altstädt, Holger Ruckdäschel
Two polymer foams with density of 0.10 and 0.13 g/cm3 (F10 and F13) respectively were fabricated by steam-welding of expanded beads, obtained from super-critical foaming of poly(ether-b-amide). The compression fatigue behaviors were first characterized by step-increase strain tests up to −60 %, with an increment of 10 %. The stress relaxation rates during every one thousand cycles of compression was
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Damage analysis of CVI SiCf/SiCm ceramic matrix composites under thermal shock Int. J. Fatigue (IF 5.7) Pub Date : 2025-01-27 Xiaopeng Hu, Qing Liu, Liang Chen, Sai Liu, Jinwei Guo, Wang Zhu
The low density, high strength, and excellent high-temperature resistance of ceramic matrix composites (CMCs) determine their significant application value in the extreme environments of advanced aero-engines. In this paper, the thermal shock performance and internal damage evolution of CMCs materials are investigated by X-ray computed tomography (XCT), infrared thermal imaging and acoustic emission
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Influence of the eutectic interface on the fatigue behaviour of friction stir spot welds of aluminum with copper Int. J. Fatigue (IF 5.7) Pub Date : 2025-01-27 E. Tognoli, K. Schricker, E. Bassoli, J.P. Bergmann
The development of hybrid bonds between copper and aluminum is being pursued for reasons of cost, functionality, and weight, particularly in the field of electromobility, to achieve near net-zero emissions. Joining aluminum to copper is a challenge, as interfacial intermetallic compounds have a negative impact on the strength, ductility, and electrical properties of the joint. The development of brittle
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Influence of sintering process on high temperature cyclic deformation behavior and fatigue creep damage mechanism of sintered silver Int. J. Fatigue (IF 5.7) Pub Date : 2025-01-26 Dao-Hang Li, Wen-Jing Xu, Tian-Yi Liu, Bowen Zhang, Yi Liu, Yun-Hui Mei
In this paper, the influence of sintering process on the high temperature cyclic deformation behavior and fatigue creep damage mechanism of sintered silver is revealed. Under cyclic shear loading at high temperatures, quasi cleavage fracture that symbolizes creep damage is induced in sintered silver, leading to a decrease in its fatigue life. With the increase of sintering temperature/time, the material
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Damage simulation and experimental verification of thermomechanical fatigue in nickel-based single crystal turbine blades considering the influence of transverse crystal orientation Int. J. Fatigue (IF 5.7) Pub Date : 2025-01-26 Bin Zhang, Xitong Jin, Yan Zhao, Xunxun Hu, Ziang Wang, Yuancao Li, Haiyan Liu, Dianyin Hu, Rongqiao Wang
Due to the complexity of loads and structures, as well as the uncertainty of transverse crystal orientation, accurately predicting thermomechanical fatigue (TMF) damage in nickel-based single crystal turbine blades remains a challenge. In this paper, a slip-based damage model reflecting the coupling of creep damage and low-cycle fatigue damage was employed to describe the in-phase thermomechanical
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Withdrawal notice to “Artificial neural networks – Assisted very-high-cycle corrosion fatigue of completion string” [Int. J. Fatigue 193 (2025) 108796] Int. J. Fatigue (IF 5.7) Pub Date : 2025-01-24 Zhenyu Zhu, Hailong Kong, Yongyou Zhu, Mattias Calmunger, Guocai Chai, Qingyuan Wang, Wei Feng
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Fretting fatigue strength evaluation of scaled press-fitted railway axle containing a circumferential groove defect Int. J. Fatigue (IF 5.7) Pub Date : 2025-01-24 Yihui Dong, Dongfang Zeng, Hai Zhao, Pingbo Wu, Ye Song, Xiang Li, Liantao Lu
Fretting fatigue cracks can occur in the wheel seat of railway axles, posing a risk to safe operation. This study investigates the critical crack depth that ensures the fatigue strength of railway axles remains within acceptable limits. Fretting fatigue tests were performed on scaled press-fitted axles with circumferential groove defects of varying depths. Results showed that as the defect depth increased
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Low cycle fatigue and creep-fatigue interaction behavior of C630R ferritic/martensitic heat-resistant steel at high temperature Int. J. Fatigue (IF 5.7) Pub Date : 2025-01-23 Kailun Ding, Zhengxin Tang, Xikou He, Xitao Wang, Jinshan He
The low-cycle fatigue (LCF) and creep-fatigue interaction (CFI) characteristics of 630R ferritic/martensitic heat-resistant steel at 630 °C have been examined. The LCF tests were conducted within a strain range of 0.3 % to 1.0 %. CFI assessments were conducted using trapezoidal waveforms with varying strain amplitudes and load holding durations. The progression of cyclic stress, hysteresis curves,
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Effect of compressive residual stress and surface morphology introduced by shot peening on the improvement of fretting fatigue life of TC4 Int. J. Fatigue (IF 5.7) Pub Date : 2025-01-23 Xiyuan Zhang, Dasheng Wei, Xiang Liu, Jiayu Xiao, Shun Yang
Fretting fatigue is a common phenomenon between contacting components that significantly reduces the life of the specimen due to stress concentration and surface wear. Shot peening is a widely used surface strengthening technique that improves fatigue life by introducing surface hardening and residual stress fields. This study employed a bridge-type pad and flat specimen test setup to investigate the
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Machine learning model for predicting the influence of crystallographic orientation on thermomechanical fatigue of Ni-base superalloys Int. J. Fatigue (IF 5.7) Pub Date : 2025-01-23 Rohan Acharya, Alexander N. Caputo, Richard W. Neu
Ni-base superalloys used in gas turbine blades are often directionally-solidified (DS) or single-crystal (SX) to minimize grain boundaries and enhance creep resistance. However, their anisotropic elastic properties cause significant variability in mechanical response depending on the loading direction, particularly for components with complex geometries. Predicting thermomechanical fatigue (TMF) and
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A comprehensive analysis of fatigue in wood and wood products Int. J. Fatigue (IF 5.7) Pub Date : 2025-01-22 Changxi Yang, Mostafa Abdelrahman, Ani Khaloian-Sarnaghi, Jan-Willem van de Kuilen
Fatigue failures pose significant challenges across various engineering disciplines. Wood, due to its low carbon emissions and high strength-to-weight ratio, has been gaining attention in engineering applications. The fatigue behavior of wood is complex due to its heterogeneous, anisotropic, and viscoelastic nature. This research explores essential insights into the fatigue behavior of wood, with a
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Mechanisms of fatigue crack growth in 7050-T6 aluminium alloy Int. J. Fatigue (IF 5.7) Pub Date : 2025-01-21 L.P. Borrego, J.S. Jesus, R. Branco, J.A.M. Ferreira, F.V. Antunes, D.M. Neto, E.R. Sérgio
Fatigue crack growth (FCG) is usually associated with cyclic plastic deformation at the crack tip. However, this damage mechanism loses dominance for relatively low stress intensity factor ranges (ΔK), and a lower boundary must be considered in numerical modelling. So far, the definition of this lower boundary and its variation with the stress ratio remain unclear This paper studies FCG in CT specimens
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Multiaxial fatigue model describing crack growth behavior and its application in welded structures of railway frames Int. J. Fatigue (IF 5.7) Pub Date : 2025-01-20 Zhe Zhang, Bing Yang, Feng Feng, Shiqi Zhou, Long Yang, Shoune Xiao, Guangwu Yang
Welded joints are typically key regions for crack initiation and propagation, making it especially important to study their fatigue behavior under different loading conditions. This study extends the classic mode I Christopher-James-Patterson (CJP) model and proposes a multiaxial CJP model tailored for welded structures. The study incorporates parameters that drive and resist crack propagation, defining
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Assessment of binder test methods for detecting cracking susceptibility in asphalt mixtures Int. J. Fatigue (IF 5.7) Pub Date : 2025-01-20 Hui Chen, Dheeraj Adwani, Namuundari Zorigtbaatar, Fujie Zhou, Pravat Karki
Asphalt binders are crucial in roadway construction, significantly influencing the performance and durability of asphalt mixtures. Even with identical mix designs, the performance of these mixtures can vary depending on the Performance Grade (PG) of the binder used. This study aims to identify and evaluate test methods for assessing binder quality, specifically in terms of cracking resistance. Twenty
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Controllable kilohertz impact fatigue loading functioned by cyclic stress wave of Hopkinson tension bar and its application for TC4 titanium alloy Int. J. Fatigue (IF 5.7) Pub Date : 2025-01-19 Jianping Yin, Chenxu Zhang, Ruoheng Sun, Yilun Hu, Yinggang Miao, Yulong Li
Engineering materials are occasionally subjected to high-frequency impact fatigue in service. However, there are still gaps in the loading techniques that hinder the acquisition of sufficient experimental data. In this work, we developed a novel loading methodology based on stress wave guidance to achieve controllable impact fatigue of ∼ 1 kHz frequency. Hopkinson tension bar was modified first by
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Microstructure and fatigue life prediction of centrifugal investment casting IN713C alloy supercharger turbine Int. J. Fatigue (IF 5.7) Pub Date : 2025-01-19 Yanyun Sun, Huarui Zhang, Fuwei Wang, Shoubin Zhang, Rui Zhang, Junpin Lin, Ying Cheng, Hu Zhang
This study quantified the relationship between the microstructural characteristics and the fatigue life of the IN713C alloy turbocharger turbines prepared using centrifugal investment casting. The samples were obtained directly from the components for fatigue testing experiments to reveal the fatigue fracture mechanisms of different microstructures. The results showed that fatigue cracks at the root
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A TCD-based statistical method to assess the impact of surface roughness and pores on the fatigue strength of LPBF Inconel 718 specimens Int. J. Fatigue (IF 5.7) Pub Date : 2025-01-18 Lorenzo Romanelli, Ciro Santus, Giuseppe Macoretta, Michele Barsanti, Bernardo Disma Monelli, Ivan Senegaglia, Adrian Hugh Alexander Lutey, Hossein Rajaei, Cinzia Menapace, Matteo Benedetti
The aim of this study is to model the impact of surface roughness and pores on the fatigue strength of plain and V-notched specimens made of Inconel 718 under as-built and machined conditions and produced by laser powder bed fusion (LPBF). Combining fractographic analyses with the Gumbel and the exponential distribution functions, the statistical analyses of the diameters of the pores and of their
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High-R Notched HCF performance of macrozones in Ti-6Al-4V Int. J. Fatigue (IF 5.7) Pub Date : 2025-01-18 Yan Gao, Nigel Martin, Jamie Moschini, David Dye
The hypothesis is examined that the macrozones that can occur in large Ti-6Al-4V forgings, in combination with the effects of stressed volume and sustained loads, can result in a debit in high cycle fatigue (HCF) performance, which would be of concern in jet engine applications. Here, the effect of placing a notch root in hard vs. soft oriented macrozones, i.e. {0002} parallel or perpendicular to the
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Correction of erroneous normal stress calculation for critical plane based fatigue criteria Int. J. Fatigue (IF 5.7) Pub Date : 2025-01-18 Jana Christine Faes, Tien Dung Dinh, Nicolas Lammens, Wim Van Paepegem
Fatigue criteria for nonproportional loading often rely on the premise that damage initiates on the plane with the highest shear stress range. Due to the reciprocity of shear stress, at least two equivalent planes in 3D space can be found. Among these, the most critical plane is determined by its normal stress, as tensile stress on the crack surface facilitates damage formation. Many loading scenarios
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Retarded fatigue crack growth in Fe–15Mn–10Cr–8Ni–4Si via reversible γ ↔ ε transformation Int. J. Fatigue (IF 5.7) Pub Date : 2025-01-18 Fumiyoshi Yoshinaka, Takahiro Sawaguchi, Susumu Takamori, Satoshi Emura, Digvijay Singh
Crack growth and closure behavior in Fe–15Mn–10Cr–8Ni–4Si steel were investigated. The steel showed slower crack growth compared with SUS316. This was mainly due to the pronounced effect of crack closure. The gradual cyclic hardening in the Fe–15Mn–10Cr–8Ni–4Si steel have enhanced the effect of plasticity-induced crack closure compared with that in SUS316. Additionally, the rough fracture surface consisting
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Residual stress relaxation of railway gradient S38C steel during fatigue crack growth by neutron imaging and diffraction Int. J. Fatigue (IF 5.7) Pub Date : 2025-01-17 Feifei Hu, Tianyu Qin, Yuhua Su, Lunhua He, Ni Ao, Joseph Don Parker, Takenao Shinohara, Shengchuan Wu
The S38C steel axles show excellent fatigue resistance due to large-depth compressive residual stress (CRS) along the axial direction. However, residual stress (RS) relaxation may occur in case of a fatigue crack, which results in a reduced damage tolerance and a shortened service lifetime. Destructive methods cannot retain the residual stress and associated retardation effect of cracks. To tackle
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Fatigue crack propagation in functionally graded bi-material steel obtained through wire-arc additive manufacturing Int. J. Fatigue (IF 5.7) Pub Date : 2025-01-16 J.L. Galán Argumedo, A. Suresh, Z. Ding, V. Bertolo, T.E. Reinton, A.C. Riemslag, M.J.M. Hermans, V.A. Popovich
This study concentrates on the fatigue crack propagation behaviour of a high-strength low-alloy (HSLA) steel and austenitic stainless (AS) steel bi-material part, as obtained by wire arc additive manufacturing (WAAM). Due to partial mixing in the weld pool, the first layer of AS steel laid onto the previously deposited HSLA steel results in a diluted interface layer of distinct chemical and microstructural
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Orientation-related fatigue crack initiation behavior at twin boundary of Inconel 718 in vacuum environment of 650 ℃ Int. J. Fatigue (IF 5.7) Pub Date : 2025-01-16 Lanzhou Liu, Yifei Gao, Xin Chen, Zhanbin Liu, Xuan Ren, Mingliang Zhu
Complicated interaction of twin boundary with dislocation plays a pivotal role in mechanical properties. In this study, the effect of TB on the fatigue crack initiation of Inconel 718 superalloy was investigated in vacuum environment of 650 ℃. A three-point bending fatigue test with preprocessed plate specimen was applied to trigger multi-source crack initiation. Plenty of slip band patterns and crystallographic
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Accelerating phase transformation in a non-equiatomic CoCrNi alloy under low-cycle fatigue deformation Int. J. Fatigue (IF 5.7) Pub Date : 2025-01-16 Z.Y. Li, H.Q. Liu, Z.Y. Ni, S.Y. Peng, Y.Z. Tian
Stacking fault energy (SFE) plays a key role in the deformation mechanisms and mechanical behavior of metallic materials. However, the low-cycle fatigue (LCF) behavior of low SFE materials remains unclear. This work presents the monotonic tensile and LCF behaviors of Co35Cr42Ni23 alloy with very low SFE. In contrast to the dislocation-dominated deformation mechanism in equiatomic CoCrNi alloy, planar
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Heat build-up and thermo-mechanical fatigue life optimization of aircraft tire using deformation index concept Int. J. Fatigue (IF 5.7) Pub Date : 2025-01-14 Zixu Shen, Qian Wang, Peng Li, Xiaolin Li, Fanzhu Li
Aircraft tires are a critical component for the takeoff, landing, and taxiing of an aircraft. Under high-speed and heavy-load conditions, aircraft tires are subjected to huge stresses and remarkable heat build-up. Improving tire safety and service life is crucial. The deformation index can be used to judge the control modes of different components of the tire, such as strain control, stress control
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Corrigendum to “High cycle fatigue performance and corresponding fracture behaviors of GH4169 studs formed by thread warm rolling process” [Int. J. Fatigue 193 (2025) 108808] Int. J. Fatigue (IF 5.7) Pub Date : 2025-01-13 Yanli Lu, Liyuan Hu, Ting Li, Gang Ran, Xiaowei Yi, Yukun Sun, Zhenyang Kong, Kuangshi Yan, Rui Hu, Hong Wang
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Experimental study on long-term fatigue behavior of piezoelectric energy harvesters under high and low-frequency vibration excitation Int. J. Fatigue (IF 5.7) Pub Date : 2025-01-12 Ping Yang, Ahmad Zhafran Ahmad Mazlan
The strain distribution along the cantilever piezoelectric energy harvester (PEH) beam is nonuniform, which would induce fatigue damage at the root of the cantilever in the long run, and cause failure in the piezoelectric material. In this study, fatigue vibration experiments are repeated to determine and analyse fatigue characteristics and output performance changes of the improved structures under
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Predicting fatigue slip and fatigue life of FRP rebar-concrete bonds using tree-based and theory-informed learning models Int. J. Fatigue (IF 5.7) Pub Date : 2025-01-12 Yiliyaer Tuerxunmaimaiti, Xiao-Ling Zhao, Daxu Zhang, Qi Zhao, Pei-Fu Zhang, Xuan Zhao, Mudassir Iqbal
Bond fatigue failure correlates with the increase in fatigue slip, influenced by the interfacial bonding properties of fibre-reinforced polymer (FRP) rebar and concrete under fatigue loading. Fatigue slip is a crucial indicator for estimating fatigue bond life. In this study, a comprehensive fatigue-slip dataset comprising 1,140 test results from published literatures was collected to develop predictive
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Ausformed high-strength low-alloy steel exhibits exceptional resistance to fatigue crack-growth in high-pressure hydrogen environments Int. J. Fatigue (IF 5.7) Pub Date : 2025-01-10 Timothee Redarce, Keiichiro Iwata, Yuhei Ogawa, Kaneaki Tsuzaki, Akinobu Shibata, Hisao Matsunaga
Ausformed specimens of the chromium-molybdenum steel JIS-SCM440 were subjected to fatigue tests in both air and 90 MPa hydrogen gas. The results were compared with those of non-ausformed specimens of the same material with similar tensile strengths (≈ 950 MPa and ≈ 1050 MPa). The ausformed materials demonstrated excellent resistance to hydrogen-induced acceleration of fatigue crack-growth (FCG), effectively
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Effect of ultrasonic peening treatment on the crack initiation behavior of extruded Mg-Gd-Zn-Zr alloys under very high cycle regime Int. J. Fatigue (IF 5.7) Pub Date : 2025-01-09 Min Zhan, Xue Li, Hai Xiong, Xinglin Yang, Yao Chen, Yongjie Liu, Chong Wang, Lang Li, Bing Xue, Yongbo Li, Qingyuan Wang, Chao He
This study examines the impact of ultrasonic peening treatment (UPT) on the very high cycle fatigue resistance of extruded Mg-Gd-Zn-Zr alloy. The findings reveal a significant alteration in crack initiation sites following UPT. The plastic deformation of the surface layer, residual stress, and the vacuum environment induced by the inward movement of the initiation site collectively contribute to an
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Enhancing fatigue performance of laser powder bed fused metals through controlling contour parameters and structures Int. J. Fatigue (IF 5.7) Pub Date : 2025-01-09 Hongzhuang Zhang, Changyou Li, Shujie Cao, Ivan Sergeichev, Guian Qian
Side surface quality is a critical concern in the fatigue performance of laser powder bed fused (PBF-LB) components. Increasing contour passes with customized parameters along sample edge can tune side surface/subsurface quality and thereby enhance fatigue resistance. This study critically evaluates the surface and subsurface characteristics resulting from varying contour parameters and their impact
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Isothermal low-cycle fatigue and fatigue-creep behaviour of boron-added 9% Cr martensitic stainless steel at 600°C Int. J. Fatigue (IF 5.7) Pub Date : 2025-01-06 Michal Bartošák, Vladimír Mára, Eliška Galčíková, Michal Slaný, Miroslav Španiel, Ladislav Poczklán, Ivo Šulák
In this article, strain-controlled Low-Cycle Fatigue (LCF) and fatigue-creep tests were conducted on COST FB2, a boron-added 9% Cr martensitic stainless steel, at 600°C. LCF tests were performed with a mechanical strain rate of 1×10−3/s, while the fatigue-creep tests involved either tensile or compressive strain dwells lasting 600 s. Both the LCF and fatigue-creep tests revealed cyclic softening behaviour
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Crack growth in laser powder bed fusion fabricated alloy 718 at 650 °C under static and cyclic loading Int. J. Fatigue (IF 5.7) Pub Date : 2025-01-04 Halsey E. Ostergaard, Joshua D. Pribe, M. Tarik Hasib, Thomas Siegmund, Jamie J. Kruzic
The role of microstructure in influencing 650 °C crack growth behavior for laser powder bed fusion (LPBF) fabricated nickel alloy 718 was examined by applying two post-build heat treatments and comparing to wrought material. The first heat treatment (solution and ageing) retained the elongated grain structure along the build direction. The second used hot isostatic pressing (HIP) prior to the solution
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Effect of undercooled austenite cooling rate on the low cycle fatigue properties of an austempering bainitic steel Int. J. Fatigue (IF 5.7) Pub Date : 2025-01-04 Yingnan Li, Yu Zhang, Xiaoyan Long, Ranran Zhu, Wanshuai Wang, Yanguo Li, Zeliang Liu
Carbide-free bainitic microstructures with different morphologies were obtained by designing different cooling rates in medium-carbon bainitic steel, and the effect of undercooled austenite cooling rate on the low cycle fatigue (LCF) properties of austempering bainitic steels was systematically investigated. The results show that with the reduction of the cooling rate, the bainitic ferrite laths are
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High cycle fatigue performance and corresponding fracture behaviors of GH4169 studs formed by thread warm rolling process Int. J. Fatigue (IF 5.7) Pub Date : 2025-01-04 Yanli Lu, Liyuan Hu, Ting Li, Gang Ran, Xiaowei Yi, Yukun Sun, Zhenyang Kong, Kuangshi Yan, Rui Hu, Hong Wang
Threaded components like bolts and studs, are prone to fatigue failures due to high stress concentration. GH4169 superalloy widely used in the aerospace field has excellent mechanical properties in high temperature environment and is ideal for high strength thread fasteners. In this study, the thread warm rolling process is developed to prepare GH4169 studs samples with enhanced fatigue performance
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Investigation of fatigue behavior in prestressed CFRP reinforced RC beams exposed to natural subtropical environment Int. J. Fatigue (IF 5.7) Pub Date : 2025-01-03 Yilin Wang, Ruonan Zhang, Wen Li, Peiyan Huang, Hangyue Cui, Pengyu Wei, Roman Wan-Wendner, Xinyan Guo
This study explores the fatigue behavior of prestressed CFRP-reinforced concrete (RC) beams in subtropical environments, addressing the gap in understanding their long-term performance under natural exposure. Five specimens were subjected to one year of natural exposure under sustained load conditions before fatigue testing. During the exposure period, the strain on the CFRP laminate was monitored
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Transition of fatigue-crack extension mechanism on a hot rolled steel with an inclined notch under cyclic tension–compression and plane strain conditions Int. J. Fatigue (IF 5.7) Pub Date : 2025-01-02 Bowen Chen, Shigeru Hamada, Takanori Kato, Taizo Makino, Hiroshi Noguchi
The fatigue characteristics of a strain-localized material specimen with an inclined notch, subjected to cyclic tension–compression under plane strain conditions, have not been fully elucidated. An unloading elastic compliance test and electron backscattering diffraction analyses were conducted near a fatigue crack tip on inclined notched specimens of JIS-SM490YB hot-rolled steel. Crack extension caused
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Prediction of sub-critical fatigue crack growth rate in a high-carbon tempered martensitic steel at varying R ratio: Experimental investigation and machine learning based modelling Int. J. Fatigue (IF 5.7) Pub Date : 2025-01-02 Sudharm Rathore, Avanish Kumar, Anurag Kumar, Kushal Mishra, Aparna Singh
The accurate prediction of fatigue crack growth is essential for evaluating the service life of critical machine components and for conducting failure analysis. Traditional models often struggle to accurately capture the complex, non-linear relationships between the fatigue crack growth rate (da/dN) and the stress intensity factor range (ΔK), especially within the Paris regime. Additionally, the influence
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Thermo-mechanical fatigue behavior and damage mechanisms under different mechanical strain amplitudes in H13 steel Int. J. Fatigue (IF 5.7) Pub Date : 2025-01-02 Hailing Chen, Shengci Li, Yupeng Ren, Yang Li, Tingting Dong, Yuzhen Li
This work assessed and discussed the thermo-mechanical fatigue (TMF) behavior and microstructural damage mechanism of H13 hot work die steel. The results showed that the TMF life decreased and cycle softening became more pronounced with increasing mechanical strain amplitude. Surface oxidation accelerated crack initiation and the texture components changed to a {112} < 111 > copper texture at 1.1 %
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Life degradation and damage mechanism of ZL114A aluminum alloy under pre-corrosion fatigue in simulated tropical marine atmospheric environment Int. J. Fatigue (IF 5.7) Pub Date : 2025-01-02 Changkai Wang, Yuting He, Teng Zhang, Tianyu Zhang, Jinhui Fu
This paper investigated the corrosion damage and fatigue fracture mechanisms of ZL114A cast aluminum alloy through laboratory pre-corrosion fatigue test conducted under simulated tropical marine humid-hot atmosphere. Additionally, based on the analysis results of surface casting defect equivalence and material damage mechanism, three types of fatigue life degradation models for this cast aluminum alloy
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Fatigue strength assessment of arc-welded aluminum joints by local approaches Int. J. Fatigue (IF 5.7) Pub Date : 2024-12-31 Juho Havia, Antti Ahola, Mariia Kozlova, Jörg Baumgartner, Timo Björk
This study investigates the applicability and reliability of the two stress-based local fatigue assessment approaches, namely the effective notch stress (ENS) and 4R approach, for welded aluminum joints. Statistical analyses were performed using a substantial number of experimental fatigue data from literature, limited to various arc-welded joints, manufactured from 5xxx and 6xxx alloys, and tested
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A path-dependent adaptive physics-informed neural network for multiaxial fatigue life prediction Int. J. Fatigue (IF 5.7) Pub Date : 2024-12-30 Huiya Liao, Jun Pan, Xihui Su, Xingyue Sun, Xu Chen
In this work, a path-dependent adaptive physics-informed neural network (PINN) is proposed for multiaxial fatigue life prediction. Several critical plane models are incorporated into the loss function, with weights optimized through a genetic algorithm and meta-learning framework which considers path-dependent non-proportional information. With training and transfer learning in 316LN, 316L, and 304
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Fatigue of polyacrylonitrile (PAN) carbon fiber monofilaments Int. J. Fatigue (IF 5.7) Pub Date : 2024-12-29 Peipei Yan, Hongyun Luo, Shuang Zhao, Lin Li, Zihua Zhao
As a high-strength and high-modulus fiber, carbon fiber is widely used in the reinforcement of advanced composite materials, which will suffer fatigue when subjected to cyclic loading with stress lower than tensile strength. However, the testing of the fatigue properties of monofilament carbon fibers presents a significant challenge due to the lack of effective testing methods for such micron-scale
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Numerical and experimental study on the multiscale failure mechanism of pre-creep fatigue for gradient nanostructured 316L steel at 650 ℃ Int. J. Fatigue (IF 5.7) Pub Date : 2024-12-28 Jianfeng Mao, Jinchen Cai, Zhongyu Piao, Yingjie Xu, Peng Sun, Mingya Chen, Zhenyu Ding, Jie Ge
Gradient nanostructured (GNS) 316L steel exhibits excellent anti-fatigue performance at room temperature, however, there is very little research on the creep fatigue mechanism of GNS 316L so far. This paper investigates the multiscale fatigue failure mechanism of GNS 316L with pre-creep at 650 ℃ and conducts fatigue tests under different strain amplitudes at 650 ℃. The damage evolution was simulated
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Comparison of resonance and hydraulic testing on large scale fatigue tests of welded tubular joints for offshore wind turbine foundations Int. J. Fatigue (IF 5.7) Pub Date : 2024-12-27 Philippe Thibaux, Marc Thiele, Jeroen Van Wittenberghe, Matthias Baessler
Jackets structures are efficient solutions as foundations for offshore wind energy converters but require the welding of a large number of joints. The design of the structure is typically driven by fatigue, and consequently the fatigue strength of the joints is a primary parameter for an optimized design. This paper investigates if tubular joints produced by manual welding using the current techniques
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WITHDRAWN: Artificial neural networks −Assisted very-high-cycle corrosion fatigue of completion string Int. J. Fatigue (IF 5.7) Pub Date : 2024-12-27 Zhenyu Zhu, Hailong Kong, Yongyou Zhu, Mattias Calmunger, Guocai Chai, Qingyuan Wang, Wei Feng
This article has been withdrawn: please see Elsevier Policy on Article Withdrawal (https://www.elsevier.com/about/policies/article-withdrawal).
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The mechanical performance of the automotive Fe-Al dissimilar spot impact weld: In comparison to the self pierced riveted joint Int. J. Fatigue (IF 5.7) Pub Date : 2024-12-26 Deepak Kumar, Hong-geun Park, Jungyu Choi, Dong Hyuck Kam, Mokyoung Lee, Taeseon Lee
Joining technologies play a crucial role in the development of robust multi-material structures, where overcoming disparities in material properties is key. Ensuring tensile and fatigue performance is essential for Al-Fe joints, especially to maintain structural integrity and durability against cyclic stresses from vibrations. Advanced joining techniques like Vaporising Foil Actuator Welding (VFAW)
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Effect of dwell time and stress intensity factor on crack deflection at elevated temperature of nickel-based superalloy GH4169 with forming induced δ-phase clusters Int. J. Fatigue (IF 5.7) Pub Date : 2024-12-26 Rong Yang, Songsong Lu, Qiuyi Wang, Binchao Liu, Rui Bao
To achieve more accurate crack propagation analysis of GH4169 with forming induced δ-phase clusters, which often experiences load-related crack deflection, a crack deflection criterion is necessary. This paper develops such a criterion based on experimental studies of critical load conditions and mechanisms that induce crack deflection. Crack propagation tests were performed at 650 °C using a novel
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Deleterious effects of low-cycle fatigue on static mechanical properties of an aircraft aluminum alloy and damage characterization based on macroscopic CDM method/microscopic GTN model Int. J. Fatigue (IF 5.7) Pub Date : 2024-12-26 Duyi Ye
Fatigue loading results in the deterioration of material properties which seriously affects the service safety of operational engineering components. In order to investigate the deleterious effects of low-cycle fatigue on the stiffness, strength, ductility and toughness of aircraft aluminum alloy AA2124-T851, a series of experiments including constant amplitude low-cycle fatigue tests, post-fatigue
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Phase-field modeling for predicting three-dimensional fatigue crack initiation and growth under laser shock peening induced residual stress Int. J. Fatigue (IF 5.7) Pub Date : 2024-12-26 Wei Tang, Shaopu Su, Shen Sun, Shijie Liu, Min Yi
Laser shock peening (LSP) has emerged as a promising technique for retarding fatigue cracks and improving fatigue performance in metallic structures by introducing residual stress. To numerically investigate fatigue fracture behavior in LSPed metals, herein a three-dimensional (3D) phase-field model incorporating LSP-induced residual stress is utilized, with the model parameters readily determined