A dislocation-based damage-coupled constitutive model for single crystal superalloy: Unveiling the effect of secondary orientation on creep life of circular hole

Z Guo, Z Song, H Liu, D Hu, D Huang, X Yan… - International Journal of …, 2024 - Elsevier
Circular holes in single crystal (SX) turbine blades are susceptible to creep failure at high
temperatures, due to the stress concentrations near the holes. In this study, a dislocation …

Investigation of low cycle fatigue crack propagation behavior of 316H steel at 550℃ based on cyclic response and damage accumulation: experiment and modelling

C Hu, L Xu, L Zhao, Y Han, K Song, X Luo… - International Journal of …, 2023 - Elsevier
In the framework of the unified elastic-plastic constitutive theory, the cyclic response and
damage evolution of 316H steel in the low cycle fatigue (LCF) regime was analyzed and …

Fatigue life prediction for LPBF-fabricated Ti-6Al-4V up to very-high-cycle regime based on continuum damage mechanics incorporating effect of defects

C Ling, Y Jia, R Fu, L Zheng, Z Zhong… - International Journal of …, 2024 - Elsevier
Defects and microstructural inhomogeneity have been recognized to have a significant
impact on the fatigue performance of titanium alloys fabricated by laser powder bed fusion …

A multiaxial probabilistic fatigue life prediction method for nickel‐based single crystal turbine blade considering mean stress correction

X Zhang, HZ Huang, X Zhang… - Quality and Reliability …, 2023 - Wiley Online Library
Gas turbine blades normally operate under high‐temperatures, extreme pressure, and high‐
speed conditions, which leads to complex failure mechanisms and difficulties in fatigue life …

Study on creep-fatigue interaction mechanism and life prediction of aero-engine turbine blade

D Sun, G Ma, Z Wan, J Gao - Engineering Failure Analysis, 2023 - Elsevier
Aiming at the creep-fatigue interaction damage failure problem of turbine blades in
aeronautical engineering, firstly, based on the modified Kachanov-Rabotnov-Chaboche …

Meso-mechanics-based microstructural modelling approach to predict low cycle fatigue properties in additively manufactured alloys

Y Hu, Y Wang, J Xi, A Chen, K Nikbin - Engineering Failure Analysis, 2023 - Elsevier
Grain, grain boundaries, voids, alloying elements and other anomalies have an important
impact on the stress distribution at the sub-grain meso level which consequently affect the …

A dual-threshold modelling approach for fatigue life prediction under combined high and low cycle fatigue

S Qiu, H Cui, H Zhang, W Wen, J Guo - International Journal of Fatigue, 2022 - Elsevier
This paper develops a dual-threshold modelling approach to characterize fatigue
performance and predict the fatigue life of turbine blades and their alloys under combined …

Effect of crystal orientation on elastic stresses and vibration characteristics of nickel-based single crystal turbine blade

L Li, Y Zeng, J Li, Y Zhao, T Yuan, Z Yue - Materials Today …, 2023 - Elsevier
The impact of crystal orientation on the elastic stress and vibration properties of nickel-based
single-crystal turbine blades is complex and can affect their performance. By defining and …

Damage-Coupled Cyclic Plasticity Model for Prediction of Ratcheting–Fatigue Behavior under Strain and Stress Controlled Ratcheting for Two Different Nuclear …

P Das, N Khutia, PP Dey, P Arora, SK Gupta - Journal of Materials …, 2023 - Springer
In this present work, a damage-coupled cyclic plasticity model has been developed for more
accurate ratcheting–fatigue life estimation under strain and stress controlled ratcheting …

Distributed-collaborative surrogate modeling approach for creep-fatigue reliability assessment of turbine blades considering multi-source uncertainty

HF Gao, YH Wang, Y Li, E Zio - Reliability Engineering & System Safety, 2024 - Elsevier
This paper proposes a substructure-based distributed-collaborative surrogate modeling
approach for improving the accuracy and efficiency in the estimation of the creep-fatigue …