A computational strategy for damage-tolerant design of hollow shafts under mixed-mode loading condition.

Journal article


Lepore, Marcello Antonio, Yarullin, Rustam, Maligno, Angelo and Sepe, Raffaele 2018. A computational strategy for damage-tolerant design of hollow shafts under mixed-mode loading condition. Fatigue & Fracture of Engineering Materials & Structures. https://doi.org/10.1111/ffe.12934
AuthorsLepore, Marcello Antonio, Yarullin, Rustam, Maligno, Angelo and Sepe, Raffaele
Abstract

Three‐dimensional numerical analyses, using the finite element method (FEM), have been adopted to simulate fatigue crack propagation in a hollow cylindrical specimen, under pure axial or combined axial‐torsion loading conditions. Specimens, made of Al alloys B95AT and D16T, have been experimentally tested under pure axial load and combined in‐phase constant amplitude axial and torsional loadings. The stress intensity factors (SIFs) have been calculated, according to the J‐integral approach, along the front of a part through crack, initiated in correspondence of the outer surface of a hollow cylindrical specimen. The crack path is evaluated by using the maximum energy release rate (MERR) criterion, whereas the Paris law is used to calculate crack growth rates. A numerical and experimental comparison of the results is presented, showing a good agreement in terms of crack growth rates and paths.

Three‐dimensional numerical analyses, using the finite element method
(FEM), have been adopted to simulate fatigue crack propagation in a hollow
cylindrical specimen, under pure axial or combined axial‐torsion loading conditions.
Specimens, made of Al alloys B95AT and D16T, have been experimentally
tested under pure axial load and combined in‐phase constant amplitude
axial and torsional loadings. The stress intensity factors (SIFs) have been calculated,
according to the J‐integral approach, along the front of a part through
crack, initiated in correspondence of the outer surface of a hollow cylindrical
specimen. The crack path is evaluated by using the maximum energy release
rate (MERR) criterion, whereas the Paris law is used to calculate crack growth
rates. A numerical and experimental comparison of the results is presented,
showing a good agreement in terms of crack growth rates and paths.

KeywordsCrack propagation; FEM
Year2018
JournalFatigue & Fracture of Engineering Materials & Structures
PublisherWiley
ISSN8756-758X
1460-2695
Digital Object Identifier (DOI)https://doi.org/10.1111/ffe.12934
Web address (URL)http://hdl.handle.net/10545/623194
hdl:10545/623194
Publication dates14 Oct 2018
Publication process dates
Deposited06 Dec 2018, 14:37
Accepted12 Sep 2018
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Archived with thanks to Fatigue & Fracture of Engineering Materials & Structures

ContributorsUniversity of Salerno, Kazan Scientific Center of Russian Academy of Sciences, University of Derby, University of Naples Federico II, Department of Industrial Engineering; University of Salerno; Via G. Paolo II 132-84084 Fisciano Italy, Kazan Scientific Center of Russian Academy of Sciences; Lobachevsky Street 2/31-420111 Kazan Russia, Institute for Innovation in Sustainable Engineering; University of Derby; Derby UK and Department of Chemical, Materials and Production Engineering; University of Naples Federico II; P.le V. Tecchio 80 80125 Naples Italy
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