Results 11 to 20 of about 500,116 (309)

Probability Prediction Approach of Fatigue Failure for the Subsea Wellhead Using Bayesian Regularization Artificial Neural Network

open access: yesJournal of Marine Science and Engineering, 2022
The subsea wellhead (SW) system is a crucial connection between blowout preventors (BOPs) and subsea oil and gas wells. Excited by cyclical fatigue dynamic loadings, the SW is prone to fatigue failure, which would lead to the loss of well integrity and ...
Jiayi Li   +7 more
doaj   +1 more source

Fatigue damage model of woven glass-epoxy fabric composite materials

open access: yesJournal of Materials Research and Technology, 2020
Based on the Stiffness degradation rule of woven glass fiber composite under fatigue loading, a phenomenological fatigue damage model containing two material parameters in which first is directly proportional to the fatigue life and second is inversely ...
Indra Narayan Yadav, Kamal Bahadur Thapa
doaj   +1 more source

Subrupture tendon fatigue damage [PDF]

open access: yesJournal of Orthopaedic Research, 2008
AbstractThe mechanical and microstructural bases of tendon fatigue, by which damage accumulates and contributes to degradation, are poorly understood. To investigate the tendon fatigue process, rat flexor digitorum longus tendons were cyclically loaded (1–16 N) until reaching one of three levels of fatigue damage, defined as peak clamp‐to‐clamp strain ...
David T, Fung   +7 more
openaire   +2 more sources

Fatigue damage quantitative evaluation of carbon fiber composites at different stress ratios based on nonlinear ultrasonic

open access: yesResults in Physics, 2023
In order to investigate the fatigue behavior of carbon fiber composites and the influence of different stress levels on their fatigue damage characteristics, the fatigue experiments of carbon fiber composites under different stress ratios are carried out.
Silong Quan, Yuhua Zhang, Peishan Lin
doaj   +1 more source

Fatigue life prediction of z-fibre pinned composite laminate under mode I loading [PDF]

open access: yes, 2019
A hybrid method is presented combining linear elastic fracture mechanics with nonlinear damage mechanics that can predict the fatigue crack growth rate in z-fibre pinned composites under mode I loading.
Ayre, David   +3 more
core   +2 more sources

A VIBRATIONAL DAMAGE MODEL FOR PEARS BASED ON FATIGUE ACCUMULATIVE DAMAGE THEORY [PDF]

open access: yesEngenharia Agrícola
Fatigue vibration is a primary cause of fruit damage during transportation. Drawing on the Palmgren–Miner fatigue accumulation damage theory and the correlation between fruit vibration damage characteristics and external vibration excitation, this paper ...
Chenxu Zhao   +3 more
doaj   +1 more source

Fatigue crack growth in thin notched woven glass composites under tensile loading. Part II: modelling [PDF]

open access: yes, 2011
Fatigue propagation of a through-the-thickness crack in thin woven glass laminates is difficult to model when using homogeneous material assumption. Crack growth depends on both the fatigue behaviour of the fibres and of the matrix, these two phenomena ...
Barrau, Jean-Jacques   +3 more
core   +3 more sources

Bump extraction algorithm for variable amplitude fatigue loading [PDF]

open access: yes, 2006
This paper presents the development of a fatigue mission synthesis algorithm, called Wavelet Bump Extraction (WBE), for summarising long records of fatigue road load data.
Abdullah, S   +3 more
core   +1 more source

Correlation regimes in fluctuations of fatigue crack growth [PDF]

open access: yes, 2005
This paper investigates correlation properties of fluctuations in fatigue crack growth of polycrystalline materials, such as ductile alloys, that are commonly encountered in structures and machinery components of complex electromechanical systems.
Anderson   +44 more
core   +1 more source

Creep–Fatigue Life Estimation of Gr.91 Steel and Its Welded Joints

open access: yesMetals, 2023
A series of creep–fatigue tests of Gr.91 steel were performed at 600 °C. Fatigue life was reduced by tensile strain holding. The minimum life reduction factor was approximately 0.3.
Isamu Nonaka
doaj   +1 more source

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