Article
Engineering, Mechanical
Y. Murakami, M. Endo
Summary: A prediction method for S-N curves without fatigue tests is proposed in this study. The method is based on the small crack (m*) growth model and predicts S-N curves for various materials. The predicted curves are compared with experimental data, showing good agreement for conservative predictions.
ENGINEERING FAILURE ANALYSIS
(2023)
Article
Chemistry, Physical
Wenbin Cai, Wen Li, Jinze Xu
Summary: During oil production, the fatigue life of sucker rods is an important factor. The currently used Basquin model has limitations in accurately estimating the fatigue limit in the high-cycle region. A new model based on the Weibull distribution provides better fitting precision and can more accurately estimate the fatigue limit, making it more suitable for guiding the design of ultra-high strength sucker rod strings.
Article
Nuclear Science & Technology
Jae Phil Park, Junhyuk Ham, Subhasish Mohanty, Dayu Fajrul Falaakh, Ji Hyun Kim, Chi Bum Bahn
Summary: A probabilistic fatigue life model was developed for Ni-base alloys based on the Weibull distribution, using fatigue data from NUREG/CR-6909 and new data of Alloy 52M/152 and 82/182. The developed model incorporates right-censored data and quantifies improved safety based on failure probability. The Weibull model showed consistent margins for Ni-base alloy weld data compared to the current fatigue design limit model, indicating its potential for mitigating excessive safety margins.
NUCLEAR ENGINEERING AND TECHNOLOGY
(2023)
Article
Engineering, Multidisciplinary
Jianhui Liu, Feilong Hua, He Zhao, Xuemei Pan, Linjun Xie
Summary: In this study, a fatigue life prediction method considering failure probability is proposed using Weibull distribution. By introducing a modified bootstrap sampling method and an iterative procedure, the method can accurately predict the life of materials under different failure probabilities, providing a theoretical basis for solving practical engineering problems.
INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING
(2022)
Article
Engineering, Mechanical
Zachary A. Cameron, Timothy L. Krantz
Summary: The reliability of gears is crucial for various applications. Researchers collected a large number of gear surface fatigue test results and analyzed them using the Weibull distribution. The results suggest that material cleanliness plays a significant role in determining fatigue life.
INTERNATIONAL JOURNAL OF FATIGUE
(2023)
Article
Engineering, Mechanical
Sebastian Vetter, Erhard Leidich, Alexander Hasse
Summary: This paper investigates the possibility of quantifying the fatigue-strength scatter in high-cycle and very-high-cycle fatigue regimes. Experimental tests were carried out on shafts to determine the scatter and a probabilistic model was developed. The fatigue strength distribution was determined by analyzing fictitious nominal stress levels and calculated failures of randomly generated shafts.
ENGINEERING FAILURE ANALYSIS
(2023)
Article
Engineering, Mechanical
Jianxiong Gao, Rongxia Xu, Zhifeng Wu, Pengnian Zhu
Summary: This study proposes an alternative method for determining the probabilistic S-N curve of material based on its static strength data, utilizing Weibull distribution to model strength and life data, which can significantly save test time and reduce test cost.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE
(2022)
Article
Engineering, Mechanical
Bernd M. Schoenbauer, Michael Fitzka, Ulrike Karr, Herwig Mayer
Summary: The study found that 17-4PH stainless steel exhibited similar critical stress amplitudes for surface and internal failure under constant amplitude (CA) and variable amplitude (VA) loading in high cycle fatigue conditions. For VA loading, failure occurred at Miner damage sums ranging from 0.1 to 0.9 (surface failure) and 0.2 to 2.2 (internal failure). It is acceptable to omit stress amplitudes less than 60% of the maximum amplitude for VA studies in the very high cycle fatigue regime.
INTERNATIONAL JOURNAL OF FATIGUE
(2021)
Article
Construction & Building Technology
Petr Miarka, Stanislav Seitl, Vlastimil Bilek, Hector Cifuentes
Summary: This experimental study introduces a novel method to transition from the traditional Wohler's curve to the Paris' law curve. The proposed method is verified and shows satisfactory results in predicting fatigue life.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Engineering, Mechanical
Yukitaka Murakami, Toshio Takagi, Kentaro Wada, Hisao Matsunaga
Summary: This paper elucidates the essential structure of the S-N curve based on fatigue life and material limit prediction methods containing defects, and discusses the extended application of this method to step loading and variable amplitude loading. The applicability of Miner's rule is also discussed from the perspective of continuous decrease in fatigue limit with number of stress cycles and crack growth.
INTERNATIONAL JOURNAL OF FATIGUE
(2021)
Article
Engineering, Mechanical
O. Savin, J. Baroth, C. Badina, S. Charbonnier, C. Berenguer
Summary: This study presents a strategy to estimate the extra cost due to start-up and shut-down of hydro turbines under high-cycle fatigue by comparing cumulated damages from different sequences. Rainflow cycle-counting and fatigue design curves are used in combination with a probabilistic approach and the Palmgren-Miner rule to estimate the damage ratio, allowing assessment of the extra costs of start and stop events. The approach is applied to Francis and Pelton runners, with different results discussed in terms of damage distributions and extra costs of start and stops.
INTERNATIONAL JOURNAL OF FATIGUE
(2021)
Article
Chemistry, Multidisciplinary
Jesus M. Barraza-Contreras, Manuel R. R. Pina-Monarrez, Roberto C. C. Torres-Villasenor
Summary: This paper presents a formulation for incorporating the vibration profile, stress, mass, and resonance frequency into reliability prediction. The two-parameter Weibull distribution is used with vibration output data to predict reliability indices. The method incorporates stress as acceleration response (A(res)) using a dynamic stress factor (s(dyn)). We demonstrate the effectiveness of the fitted Weibull distribution in predicting reliability indices and provide guidelines for applying the proposed method in vibration fatigue analysis.
APPLIED SCIENCES-BASEL
(2023)
Article
Engineering, Mechanical
Andreas Trausmuth, Michael Stoschka, Florian Grun
Summary: FZG tests are widely used to determine fatigue lifetime and operational parameters in gear applications. The transferability of results between FZG and twin disc tests has been assessed in this study, providing insights for future test configurations.
Article
Materials Science, Multidisciplinary
A. Mahmoudi, M. M. Khonsari
Summary: This research proposes a simple and efficient method for extracting the fatigue curve of materials within the framework of thermodynamics. By measuring the temperature rise, the fatigue life of the material can be predicted and the S-N curve can be created successfully.
EXPERIMENTAL MECHANICS
(2023)
Article
Engineering, Mechanical
Lu Ke, Furui Zhu, Zheng Chen, Zheng Feng, Jiale Zhou, Youlin Li
Summary: Fatigue tests were conducted on CFRP-steel double lap shear joints to investigate the fatigue failure mechanisms. Probabilistic S-N curves based on four statistical models were used to discuss the scatter characteristics of fatigue life. The results showed that the fatigue life decreased with the increase of load level, and interface debonding was the primary failure mode. The two-parameter Weibull model was recommended for fatigue life design due to its good fit and reliability.
INTERNATIONAL JOURNAL OF FATIGUE
(2023)
Article
Engineering, Mechanical
Przemyslaw Strzelecki
FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES
(2020)
Article
Mechanics
Przemyslaw Strzelecki
JOURNAL OF THEORETICAL AND APPLIED MECHANICS
(2019)
Article
Chemistry, Physical
Przemyslaw Strzelecki, Adam Mazurkiewicz, Janusz Musial, Tomasz Tomaszewski, Malgorzata Slomion
Article
Chemistry, Physical
Tomasz Tomaszewski, Przemyslaw Strzelecki, Adam Mazurkiewicz, Janusz Musia
Article
Materials Science, Multidisciplinary
Przemyslaw Strzelecki, Marcin Wachowski
Summary: The paper presents the fracture surfaces of an aluminium alloy material under a rotating bending load, and analyzes the ratio between the area of the final fracture zone and the total cross-sectional area for different stress concentration factors. The study reveals a relationship that can be used to estimate the stress concentration factor and proposes a method to determine it.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Engineering, Multidisciplinary
T. Tomaszewski, P. Strzelecki, M. Wachowski, M. Stopel
BULLETIN OF THE POLISH ACADEMY OF SCIENCES-TECHNICAL SCIENCES
(2020)
Proceedings Paper
Mechanics
Przemyslaw Strzelecki, Tomasz Tomaszewski
SCIENTIFIC SESSION ON APPLIED MECHANICS X
(2019)
Proceedings Paper
Mechanics
Przemyslaw Strzelecki, Tomasz Tomaszewski
FATIGUE FAILURE AND FRACTURE MECHANICS XXVII
(2018)
Proceedings Paper
Engineering, Mechanical
Przemyslaw Strzelecki
ECF22 - LOADING AND ENVIRONMENTAL EFFECTS ON STRUCTURAL INTEGRITY
(2018)
Proceedings Paper
Construction & Building Technology
Przemyslaw Strzelecki, Tomasz Tomaszewski
2ND INTERNATIONAL CONFERENCE ON STRUCTURAL INTEGRITY, ICSI 2017
(2017)
Proceedings Paper
Construction & Building Technology
Tomasz Tomaszewski, Przemyslaw Strzelecki
2ND INTERNATIONAL CONFERENCE ON STRUCTURAL INTEGRITY, ICSI 2017
(2017)
Article
Engineering, Marine
Przemyslaw Strzelecki, Janusz Sempruch
POLISH MARITIME RESEARCH
(2016)
Proceedings Paper
Engineering, Multidisciplinary
T. Tomaszewski, P. Strzelecki, J. Sempruch
ENGINEERING MECHANICS 2016
(2016)
Article
Mechanics
Przemyslaw Strzelecki, Janusz Sempruch
JOURNAL OF THEORETICAL AND APPLIED MECHANICS
(2016)
Article
Engineering, Mechanical
Miloslav Kepka, Miloslav Kepka Jr, Radovan Minich
Summary: This paper focuses on the fatigue life evaluation of the bodywork of a new articulated electric (battery) bus. The findings resulted in recommendations to improve the operational reliability of a particular vehicle and provided challenges for future research.
INTERNATIONAL JOURNAL OF FATIGUE
(2024)
Article
Engineering, Mechanical
T. Dusautoir, B. Berthel, S. Fouvry, P. Matzen, K-D. Meck
Summary: This study investigates the impact of post-processing treatments on the fatigue limit of additive manufactured Ti-6Al-4V under stress gradients, with a focus on surface integrity.
INTERNATIONAL JOURNAL OF FATIGUE
(2024)
Article
Engineering, Mechanical
Zhuofan Xia, Di Wu, Xiaochen Zhang, Jianqiu Wang, En -Hou Han
Summary: The study reveals the surface-initiated rolling contact fatigue (RCF) failure mechanism under heavy load and initial high roughness surface. The results indicate that precursor of collapsed morphology and nanocrystalline layer are the main factors causing lower RCF life with high roughness compared to low roughness surfaces. The spalling failure initiating from low roughness surface under heavy load is strongly dependent on surface plastic deformation.
INTERNATIONAL JOURNAL OF FATIGUE
(2024)
Article
Engineering, Mechanical
Daniel Gren, Knut Andreas Meyer
Summary: Rolling contact loading can cause plastic deformation and fatigue cracks. Current rail standards do not consider the effect of plasticity on mechanical behavior. This study proposes a new method for evaluating the fatigue life of deformed material and finds that superimposed compressive axial loads can increase fatigue life.
INTERNATIONAL JOURNAL OF FATIGUE
(2024)
Article
Engineering, Mechanical
R. Kumar, S. Sanyal, J. Bhagyaraj, E. Hari Krishna, S. Mukherjee, K. Prasad, S. Mandal
Summary: This study investigates the thermomechanical fatigue (TMF) behavior of Timetal 834 alloy under different loading conditions. The results show that the alloy exhibits different cyclic hardening and softening responses at different strain amplitudes. The strain amplitude and phase angle have significant effects on the TMF life.
INTERNATIONAL JOURNAL OF FATIGUE
(2024)
Article
Engineering, Mechanical
Kai Donnerbauer, Tobias Bill, Peter Starke, Ruth Acosta, Bharath Yerrapa, Christian Boller, Klaus Heckmann, Frank Walther
Summary: Given the aging of nuclear power plants, it is important to develop methods for evaluating the integrity of components and structures in nuclear engineering. Suitable nondestructive testing methods can detect material degradation and determine its fatigue life. This study utilized various NDT parameters and scanning electron microscopic methods to explore the relationship between microstructure evolution and NDT data.
INTERNATIONAL JOURNAL OF FATIGUE
(2024)
Article
Engineering, Mechanical
Liuyong He, Jiang Zheng, Tianjiao Li, Houkun Zhou, Lihong Xia, Bin Jiang
Summary: This study quantitatively analyzed the effects of precipitates on the deformation mode, cracking mode, and mechanical behavior of WE54 magnesium alloy during low-cycle fatigue. It was found that precipitates promoted the activation of dislocation slip and suppressed the activation of twinning, affecting the cracking mode and mechanical behavior.
INTERNATIONAL JOURNAL OF FATIGUE
(2024)
Article
Engineering, Mechanical
Xiangkang Zeng, Conghui Zhang, Wenguang Zhu, Mingliang Zhu, Tongguang Zhai, Xiaomei He, Kangkai Song, Zhuohang Xie
Summary: The cyclic deformation behaviors and damage mechanisms of pure Zr were investigated. The cyclic stress response was mainly influenced by substructure evolutions. Prismatic < a > dislocation slip was identified as the dominant deformation mechanism. Fatigue damage was not only influenced by the initial texture, but also other factors.
INTERNATIONAL JOURNAL OF FATIGUE
(2024)
Article
Engineering, Mechanical
Jingyu Yang, Bingbing Li, Yiming Zheng, Gang Chen, Xu Chen
Summary: Heat treatment is used to improve the low-cycle fatigue performance of additive manufactured 316LN stainless steel. The heat-treated material demonstrates initially cyclic hardening followed by softening behavior, and shows a stronger resistance to crack propagation compared to the as-built material, resulting in a longer fatigue life.
INTERNATIONAL JOURNAL OF FATIGUE
(2024)
Article
Engineering, Mechanical
Lang Zou, Dongfang Zeng, Xiong Chen, Jun Li, Hai Zhao, Liantao Lu
Summary: This study investigates the competitive relationship between fretting fatigue and plain fatigue in press-fitted railway axles. By changing the depth of the stress relief groove, the plain fatigue limit and fretting fatigue strength were tested. Detailed information was gathered, and an evaluation methodology integrating finite element simulation and the Modified Wohler Curve Method was established. The study concludes that the optimal groove depth, which balances the anti-fatigue capabilities, depends on the number of test cycles.
INTERNATIONAL JOURNAL OF FATIGUE
(2024)
Article
Engineering, Mechanical
Davide Leonetti, Koji Kinoshita, Yukina Takai, Alain Nussbaumer
Summary: This paper investigates the fatigue behavior of non-load-carrying transverse welded steel attachments, including fatigue crack monitoring and fracture surface analysis under constant and variable amplitude loading. A procedure is proposed to obtain a Markov transition matrix based on the measured strain signal and to randomly resample the stress history for variable amplitude fatigue tests.
INTERNATIONAL JOURNAL OF FATIGUE
(2024)
Article
Engineering, Mechanical
Zhe Zhang, Bing Yang, Yuedong Wang, Shoune Xiao
Summary: This paper presents a method for designing fatigue life prediction models with small sample sizes by handling limited sample data. The method integrates the equivalent structural stress method with the maximum likelihood estimation method and adds reliability verification, resulting in enhanced goodness of fit, stability, and optimized sample quantity.
INTERNATIONAL JOURNAL OF FATIGUE
(2024)
Article
Engineering, Mechanical
Cooper K. Hansen, Gary F. Whelan, Jacob D. Hochhalter
Summary: This paper presents a method to address the computational demand issue of computing FIPs using CPFEM by developing an interpretable machine learning model. Genetic programming is used to evolve interpretable expressions of FIPs from microstructure features, and these models can serve as efficient substitutes for CPFEM and be easily integrated into engineering workflows.
INTERNATIONAL JOURNAL OF FATIGUE
(2024)
Article
Engineering, Mechanical
Luca Susmel
Summary: This paper discusses the problem of estimating notch fatigue limits using machine learning. The results show that machine learning is a promising approach for designing notched components against fatigue. The accuracy in estimating the fatigue limit can be increased by increasing the size and quality of the calibration dataset, as well as including additional input features.
INTERNATIONAL JOURNAL OF FATIGUE
(2024)
Article
Engineering, Mechanical
Kefeng Gao, Guoqi Tan, Yanyan Liu, Qiang Wang, Qian Tang, Xuegang Wang, Qiqiang Duan, Zengqian Liu, Zhe Yi, Zhefeng Zhang
Summary: Bioinspired architectures have significant effects on material enhancement. This study investigates the fatigue properties of bioinspired ceramic-polymer composites and natural nacre, revealing the close relationship between architectural types, orientations, fatigue performance, and damage mechanisms.
INTERNATIONAL JOURNAL OF FATIGUE
(2024)