Closed-form solutions for tilted three-part piecewise-quadratic half-plane contacts

A general half-plane contact problem in which the geometry is specified in a piecewise-quadratic sense over three segments is solved in closed form. This includes the effects of a moment applied sufficient to introduce separation of one segment and the application of a shearing force sufficient or i...

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Main Authors: Andresen, H, Hills, D, Vazquez, J
Format: Journal article
Language:English
Published: Elsevier 2018
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author Andresen, H
Hills, D
Vazquez, J
author_facet Andresen, H
Hills, D
Vazquez, J
author_sort Andresen, H
collection OXFORD
description A general half-plane contact problem in which the geometry is specified in a piecewise-quadratic sense over three segments is solved in closed form. This includes the effects of a moment applied sufficient to introduce separation of one segment and the application of a shearing force sufficient or insufficient to cause sliding. Extending existing solutions to asymmetrical problems is necessary in order to broaden our understanding of the behaviour of dovetail roots of gas turbine fan blades. In previous studies symmetrical contacts have often been used to represent a dovetail flank contact. In the asymmetrical case, the contact pressure may be considerably higher at one of the contact edges compared to the corresponding symmetrical case. Exploiting the generality provided with the solution presented in this study, several simpler indenter problems are investigated making use of an algebraic manipulator. The Mathematica code is made available for download.
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spelling oxford-uuid:33ffd133-b442-4482-84e7-7007ce69e2f52022-03-26T13:23:21ZClosed-form solutions for tilted three-part piecewise-quadratic half-plane contactsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:33ffd133-b442-4482-84e7-7007ce69e2f5EnglishSymplectic Elements at OxfordElsevier2018Andresen, HHills, DVazquez, JA general half-plane contact problem in which the geometry is specified in a piecewise-quadratic sense over three segments is solved in closed form. This includes the effects of a moment applied sufficient to introduce separation of one segment and the application of a shearing force sufficient or insufficient to cause sliding. Extending existing solutions to asymmetrical problems is necessary in order to broaden our understanding of the behaviour of dovetail roots of gas turbine fan blades. In previous studies symmetrical contacts have often been used to represent a dovetail flank contact. In the asymmetrical case, the contact pressure may be considerably higher at one of the contact edges compared to the corresponding symmetrical case. Exploiting the generality provided with the solution presented in this study, several simpler indenter problems are investigated making use of an algebraic manipulator. The Mathematica code is made available for download.
spellingShingle Andresen, H
Hills, D
Vazquez, J
Closed-form solutions for tilted three-part piecewise-quadratic half-plane contacts
title Closed-form solutions for tilted three-part piecewise-quadratic half-plane contacts
title_full Closed-form solutions for tilted three-part piecewise-quadratic half-plane contacts
title_fullStr Closed-form solutions for tilted three-part piecewise-quadratic half-plane contacts
title_full_unstemmed Closed-form solutions for tilted three-part piecewise-quadratic half-plane contacts
title_short Closed-form solutions for tilted three-part piecewise-quadratic half-plane contacts
title_sort closed form solutions for tilted three part piecewise quadratic half plane contacts
work_keys_str_mv AT andresenh closedformsolutionsfortiltedthreepartpiecewisequadratichalfplanecontacts
AT hillsd closedformsolutionsfortiltedthreepartpiecewisequadratichalfplanecontacts
AT vazquezj closedformsolutionsfortiltedthreepartpiecewisequadratichalfplanecontacts