Results 41 to 50 of about 95,930 (215)

An Approach to Predicting Fatigue Crack Growth Under Mixed-Mode Loading Based on Improved Gaussian Process

open access: yesIEEE Access, 2021
This paper proposes an approach to predicting fatigue crack growth under mixed-mode loading based on improved Gaussian process. In terms of analyzing the theoretical background for fatigue crack growth, a corresponding finite element model is built to ...
Honghui Wang   +6 more
doaj   +1 more source

STUDY ON INFLUENCE OF LOW TEMPERATURE ENVIRONMENT ON FATIGUE CRACK GROWTH PERFORMANCE OF HIGH-SPEED RAILWAY BRAKE DISC MATEREIAL

open access: yesJixie qiangdu, 2022
In order to study the effect of low temperature environment on the fatigue crack growth performance of high-speed train brake disc materials, the tensile and fatigue crack growth rate tests of special cast steel materials of high-speed railway brake disc
DING SiYuan   +4 more
doaj  

Finite element analyses of fatigue crack growth under small scale yielding conditions modelled with a cyclic cohesive zone approach [PDF]

open access: yes, 2013
Mode I fatigue crack growth is modelled and investigated with a cohesive zone approach. A 2D finite element boundary layer model under plane strain and small scale yielding conditions is used to generate fatigue crack growth rate curves ...
Kuna, Meinhard, Roth, Stephan
core  

Research on Fatigue Crack Growth Test and Numerical Simulation of 20CrMnTi Gear Steel

open access: yesJixie chuandong, 2021
In order to study the problem of fatigue crack growth of 20CrMnTi gear steel,the material 20CrMnTi is made into compact tensile specimens,and the fatigue crack growth test with load ratio R=0.3 is carried out on the fatigue tensile testing machine.
Junbei Ma, Qinhao Zhang
doaj  

Thresholds of time dependent intergranular crack growth in a nickel disc alloy Alloy 720Li

open access: yesMATEC Web of Conferences, 2014
At high temperatures in air, introducing a dwell period at the peak stress of fatigue cycles promotes time dependent intergranular crack growth which can increase crack growth rates by upto a few orders of magnitude from the rates of transgranular ...
Li Hangyue   +4 more
doaj   +1 more source

Stochastic filter-based fatigue crack growth prediction for pipelines considering unknown model parameters and measurement uncertainty

open access: yesJournal of Pipeline Science and Engineering, 2022
In this study a methodology is developed and implemented in Python for fatigue crack growth prediction in pipelines, by leveraging measurement data and fatigue growth model predictions.
Durlabh Bartaula, Samer Adeeb, Yong Li
doaj   +1 more source

Low Temperature Fatigue Crack Growth Test and Life Estimation of 7475-T7351 Al-ally by ANN [PDF]

open access: yes, 2016
In the present wok fatigue crack growth tests have been performed under interspersed mode-I overload on 7475-T7351 Al-alloy. The overloads with an overload ratio of 2 were given at 0C, ndash;30C, ndash;45C, ndash;60C, and ndash;75C at a loading rate of 7
Mohanty, J. R. (J)
core   +1 more source

STATISTICAL ANALYSIS OF FATIGUE CRACK GROWTH TEST DATA FOR 2024-T62 ALUMINUM ALLOY

open access: yesJixie qiangdu, 2019
The fatigue crack growth tests for 2024-T62 aluminum alloy were conducted under three stress levels, the dispersion of fatigue crack growth were analyzed by using experimental data based on mathematical statistics.
WANG XuHu   +3 more
doaj  

Simulation of Near-Tip Crack Behaviour and Its Correlation to Fatigue Crack Growth with a Modified Strip-Yield Model [PDF]

open access: yes, 2008
A modified strip-yield model has been developed to simulate the plasticity-induced crack closure under the constant amplitude (CA) and a single overload loading conditions.
Chen, Y.K., Tiu, W., Wang, L., Xu, Y.
core   +1 more source

A fatigue crack initiation model incorporating discrete dislocation plasticity and surface roughness [PDF]

open access: yes, 2007
Although a thorough understanding of fatigue crack initiation is lacking, experiments have shown that the evolution of distinct dislocation distributions and surface roughness are key ingredients.
Brinckmann, Steffen   +1 more
core   +4 more sources

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