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Damage accumulation of bovine bone under variable amplitude loads [PDF]

open access: yesBone Reports, 2016
Stress fractures, a painful injury, are caused by excessive fatigue in bone. This study on damage accumulation in bone sought to determine if the Palmgren-Miner rule (PMR), a well-known linear damage accumulation hypothesis, is predictive of fatigue ...
Abbey M. Campbell   +3 more
doaj   +2 more sources

Very High Cycle Fatigue Damage of TC21 Titanium Alloy under High/Low Two-Step Stress Loading

open access: yesCrystals, 2023
Very high cycle fatigue (VHCF) tests were carried out under variable amplitude loading for TC21 titanium alloy. The first level of high amplitude loading was set as 950 MPa close to yield strength, and the second level of low amplitude loading was ...
Baohua Nie   +7 more
doaj   +1 more source

Mean Stress Effect in High-Frequency Mechanical Impact (HFMI)-Treated Steel Road Bridges

open access: yesBuildings, 2022
High-frequency mechanical impact (HFMI) is a post-weld treatment method which substantially enhances the fatigue strength of steel weldments. As such, the method enables a more efficient design of bridges, where fatigue is often the governing limit state.
Hassan Al-Karawi   +2 more
doaj   +1 more source

Critical plane approach to multiaxial variable amplitude fatigue loading [PDF]

open access: yesFracture and Structural Integrity, 2015
A new critical plane approach based on the modified Manson-Coffin curve method (MMCCM) is presented in this paper for predicting fatigue lifetime under variable amplitude (VA) multiaxial fatigue loading.
Yingyu Wang, Luca Susmel
doaj   +2 more sources

Fatigue crack growth behavior under multiaxial variable amplitude loading [PDF]

open access: yesFracture and Structural Integrity, 2016
This study compares both uniaxial and multiaxial variable amplitude experimental crack growth data for naturally initiated fatigue cracks in tubular specimens of 2024-T3 aluminum alloy to predictions based on two state-of-the-art analysis codes ...
Nicholas R. Gates   +3 more
doaj   +3 more sources

Crack propagation under variable amplitude loading [PDF]

open access: yesMaterials Research, 2013
Experience shows that a damage induced by a given cycle is dependent on the loading history. In this regard, the objective of this paper is to study and describe the phenomenology of the loading history on crack propagation.
Miloudi Abdelkader   +4 more
doaj   +1 more source

SINUSOIDAL SIGNAL PARAMETERS IDENTIFICATION WITH UNKNOWN VARIABLE AMPLITUDE [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2018
The paper considers the problem of the frequency identification for a biased sinusoidal signal in the absence of measurement noise. It is assumed that the displacement and amplitude of the sinusoidal signal are unknown functions of time.
Le Van Tuan, Bobtsov A. A.
doaj   +1 more source

Implementation of fatigue model for unidirectional laminate based on finite element analysis: theory and practice [PDF]

open access: yesFracture and Structural Integrity, 2016
The aim of this study is to deal with the simulation of intralaminar fatigue damage in unidirectional composite under multi-axial and variable amplitude loadings.
D. Carrella-Payan   +8 more
doaj   +3 more sources

Crack simulation models in variable amplitude loading - a review [PDF]

open access: yesFracture and Structural Integrity, 2016
This work presents a review of crack propagation simulation models considering plane stress and plane strain conditions. It is presented also a chronological different methodologies used to perform the crack advance by finite element method.
Luiz Carlos H. Ricardo   +1 more
doaj   +1 more source

Vibration Fatigue Damage Accumulation of Ti–6Al–4V under Constant and Sequenced Variable Loading Conditions

open access: yesMetals, 2018
This study aims to investigate the effect of loading factors on damage accumulation under variable amplitude vibration (VAV). Vibration fatigue experiments are conducted under both constant amplitude vibration (CAV) and VAV loading cases.
Jiewei Lin   +3 more
doaj   +1 more source

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