Article
Engineering, Mechanical
Pengshuai Liu, Xiaowei Wang, Qin Shen, Hui Guo, Yansong Wang, Yujuan Sun
Summary: Combined high and low cycle fatigue tests were conducted on GH4169 nickel-based alloy. A nonlinear cumulative damage model considering the interaction between high and low cycle fatigue loading was proposed and validated, showing superior performance compared to Miner's rule and the Trufyakov-Kovalchuk model.
INTERNATIONAL JOURNAL OF FATIGUE
(2023)
Article
Materials Science, Multidisciplinary
Changjie Jiang, Xintian Liu, Minghui Zhang, Xu Wang, Yansong Wang
Summary: A model for strength degradation of metal materials was proposed and verified, leading to the derivation of a nonlinear fatigue cumulative damage model. This model was successfully applied to estimate fatigue life under different loading sequences, showcasing its accuracy in predicting fatigue life under various loading conditions.
INTERNATIONAL JOURNAL OF DAMAGE MECHANICS
(2021)
Article
Chemistry, Physical
Nikolaos D. Batsoulas, Georgios I. Giannopoulos
Summary: This paper suggests a method to predict the fatigue life of composite laminates under varying loads. It introduces a new theory of cumulative fatigue damage based on Continuum Damage Mechanics, where the damage rate is linked to cyclic loading through the damage function. The proposed model is demonstrated to have benefits and reliability through comparison with other techniques and validation with independent fatigue data.
Article
Engineering, Mechanical
Sheng Yu, Jinping Ou
Summary: A novel fatigue damage regression analysis model and a new fatigue reliability assessment method based on the nonlinear fatigue model were developed to predict the fatigue life of details in orthotropic steel decks. The study considered the impact of long-term moving vehicle loads and asphalt concrete pavement temperatures on fatigue life, and developed a limit equation that takes into account traffic conditions and pavement temperature for fatigue life prediction.
ENGINEERING FAILURE ANALYSIS
(2021)
Article
Engineering, Mechanical
Hao Chen, Fan Yang, Zhen Wu, Bowen Yang, Junzhou Huo
Summary: This paper proposes a nonlinear fatigue damage accumulation model under variable amplitude loading considering the loading sequence effect. The model is validated and compared through experimental data, and it is found that the prediction accuracy of the proposed model is significantly higher than the other two models, while the difficulty of using the proposed model is lower than that of similar models.
INTERNATIONAL JOURNAL OF FATIGUE
(2023)
Article
Engineering, Mechanical
Bowen Wang, Qiwen Xue
Summary: Two new nonlinear accumulation damage models are proposed in this paper, based on the material damage state. The key parameter delta is modified by introducing the load cycle ratio and the amount of material memory degradation in order to express the damage state. The proposed models show good predictive ability and reliability for fatigue life prediction in practical engineering problems.
JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY
(2021)
Article
Chemistry, Physical
Zhengshun Ni, Tao Xiong, Jie Lei, Liuping Wang, Tong Gao, Jianwu Yu, Chengji Mi
Summary: This paper explores the fatigue life estimation approach for welded joints with precracks under coupled impact and fatigue loading, and presents a lifetime assessment model based on the continuum damage mechanics. The estimated results are consistent with the experimental ones.
Article
Engineering, Mechanical
Aodi Yu, Hong-Zhong Huang, Yan-Feng Li, Wenxian Yang, Zhiming Deng
Summary: This paper proposes a modified nonlinear fatigue damage accumulation model to predict the fatigue life of rolling bearings under variable loading conditions. The results show that the proposed model can more accurately predict the damage accumulation and life compared to existing models.
FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES
(2022)
Review
Materials Science, Multidisciplinary
Kris Hectors, Wim De Waele
Summary: Fatigue design of engineering structures is often done based on cumulative damage law, with Miner's linear damage rule being the standard despite known deficiencies. Nonlinear cumulative damage models and life prediction models have been developed to address these deficiencies, but have not been widely accepted.
Article
Engineering, Aerospace
Zhenhua Zhao, Kainan Lu, Lingfeng Wang, Lulu Liu, Wei Chen
Summary: The study conducted fatigue tests on TC11 titanium alloy and found that the CCF life varies with the high-low cycle stress frequency ratio m. The linear cumulative damage model has higher accuracy when m <= 500, while the nonlinear model has higher accuracy when m >= 500.
CHINESE JOURNAL OF AERONAUTICS
(2021)
Article
Engineering, Mechanical
Nader Zirak, Abbas Tcharkhtchi
Summary: This study focuses on predicting the fatigue life of amorphous glassy polymers by alternating different parameters based on experimental results. The mechanism of fatigue failure was investigated using scanning electron microscopy, leading to the observation of different fracture regions consisting of thermal and mechanical zones under different temperature conditions. The proposed model is based on the cumulative evolution of micro-defects until rupture, with constant parameters varying depending on the material, temperature, and frequency. The results show that the model has a good ability to predict the fatigue life of polymers.
INTERNATIONAL JOURNAL OF FATIGUE
(2023)
Article
Engineering, Mechanical
Kris Hectors, Tanja Van Hecke, Wim De Waele
Summary: This study finds that the current practice of verifying fatigue damage accumulation models is too limited, allowing cherry-picking of verification datasets to improve perceived performance. Future research should rigorously verify new fatigue damage accumulation models to both readily available and new experimental datasets.
FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES
(2022)
Article
Materials Science, Multidisciplinary
Run-Zi Wang, Xian-Cheng Zhang, Hang-Hang Gu, Kai -Shang Li, Jian-Feng Wen, Hideo Miura, Ken Suzuki, Shan -Tung Tu
Summary: The objective of this study is to develop numerical procedures for predicting creep-fatigue-oxidation life and assessing damage based on an engineering damage approach. The study focuses on supporting low-carbon and new-energy technologies and their high-reliability and long-life design requirements. The research explores the creep-fatigue behavior of IN 718 at 650 degrees C under various loading conditions and incorporates oxidation damage into the prediction. The results show improvements in the prediction accuracy and probability density function by considering oxidation damage. The study also demonstrates the cycle-dependent roles in multi-damage evolutions through radar graphs.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Engineering, Mechanical
Tianyu Zhang, Xiaowei Wang, Xianxi Xia, Yong Jiang, Xiancheng Zhang, Liguo Zhao, Anish Roy, Jianming Gong, Shantung Tu
Summary: This paper develops a robust creep-fatigue interaction (CFI) life prediction model, which considers the effect of creep strain and demonstrates its broad applicability for various materials and loading conditions.
INTERNATIONAL JOURNAL OF FATIGUE
(2023)
Article
Engineering, Mechanical
Lu Feng, Xudong Chen, Jinhua Zhang, Jiayi Yuan, Wen Dong
Summary: The study reveals that the fatigue damage of SCC under constant amplitude and incremental amplitude loading has different stages, with the critical SIF being the boundary point for fatigue damage development, and the damage model based on CDM is more sensitive in predicting fatigue life.
INTERNATIONAL JOURNAL OF FATIGUE
(2021)