Fatigue crack nucleation: Mechanistic modelling across the length scales

FPE Dunne - Current Opinion in Solid State and Materials Science, 2014 - Elsevier
This paper presents an assessment of recent literature on the mechanistic understanding of
fatigue crack nucleation and the associated modelling techniques employed. In particular …

Microstructure-sensitive computational modeling of fatigue crack formation

DL McDowell, FPE Dunne - International journal of fatigue, 2010 - Elsevier
Recent trends towards simulation of the cyclic slip behavior of polycrystalline and polyphase
microstructures of advanced engineering alloys subjected to cyclic loading are facilitating …

A stored energy criterion for fatigue crack nucleation in polycrystals

VVC Wan, DW MacLachlan, FPE Dunne - International Journal of Fatigue, 2014 - Elsevier
A series of microstructurally-differing, large-grained, notched, polycrystal BCC ferritic steel
bend test samples have been analysed to extract the experimentally observed sites of …

The synergetic effects of shot peening and laser-shot peening on the microstructural evolution and fatigue performance of a medium carbon steel

Y Zhang, K Zhang, Z Hu, T Chen, L Susmel… - International Journal of …, 2023 - Elsevier
The synergetic effect of shot peening (SP) and laser shot peening (LSP) on the fatigue
behavior of a medium carbon steel was investigated. A fatigue life transition was observed in …

Microstructure-sensitive extreme value probabilities for high cycle fatigue of Ni-base superalloy IN100

CP Przybyla, DL McDowell - International Journal of Plasticity, 2010 - Elsevier
To quantify the effects of interactions between various microstructure attributes on fatigue life
in the high cycle fatigue (HCF) regime, we have proposed a new microstructure-sensitive …

The role of elastic anisotropy, length scale and crystallographic slip in fatigue crack nucleation

CA Sweeney, W Vorster, SB Leen, E Sakurada… - Journal of the …, 2013 - Elsevier
Fatigue crack nucleation in polycrystal ferritic steel is investigated through experimental
observation of multiple large-grained, notched, four-point bend tests combined with explicit …

Microstructure and mesh sensitivities of mesoscale surrogate driving force measures for transgranular fatigue cracks in polycrystals

GM Castelluccio, DL McDowell - Materials Science and Engineering: A, 2015 - Elsevier
The number of cycles required to form and grow microstructurally small fatigue cracks in
metals exhibits substantial variability, particularly for low applied strain amplitudes. This …

Simulated effects of sample size and grain neighborhood on the modeling of extreme value fatigue response

KS Stopka, M Yaghoobi, JE Allison, DL McDowell - Acta Materialia, 2022 - Elsevier
Assessing the size of representative volume elements (RVEs) for fatigue-related
applications is challenging. A RVE relevant to random microstructure requires a volume of …

Investigations of micro-notch effect on small fatigue crack initiation behaviour in nickel-based alloy GH4169: Experiments and simulations

GJ Yuan, RZ Wang, CY Gong, XC Zhang… - International Journal of …, 2020 - Elsevier
Small fatigue crack initiation behaviour in a series of specimens containing different sizes of
micro-notch has been observed through RepliSet system during interrupted low cycle …

Deformation localization and dislocation channel dynamics in neutron-irradiated austenitic stainless steels

MN Gussev, KG Field, JT Busby - Journal of Nuclear Materials, 2015 - Elsevier
The dynamics of deformation localization and dislocation channel formation were
investigated in situ in a neutron-irradiated AISI 304 austenitic stainless steel and a model …