Numerical modelling of the effect of fretting wear on fretting fatigue

This thesis reports the development of a method for predicting the fretting fatigue life of a system which takes into consideration the material removed as a result of fretting wear. The first implementation is based on a critical plane, multiaxial fatigue model and a damage accumulation framework....

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Main Author: Madge, Jason John
Format: Thesis (University of Nottingham only)
Language:English
Published: 2009
Online Access:https://eprints.nottingham.ac.uk/10681/
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author Madge, Jason John
author_facet Madge, Jason John
author_sort Madge, Jason John
building Nottingham Research Data Repository
collection Online Access
description This thesis reports the development of a method for predicting the fretting fatigue life of a system which takes into consideration the material removed as a result of fretting wear. The first implementation is based on a critical plane, multiaxial fatigue model and a damage accumulation framework. The model is applied to both ‘cylinder on flat’ and ‘rounded edge punch on flat’ geometries, for which experimental data from the literature is used for comparison.. The method is able to predict a number of key experimentally observed phenomena, which existing approaches are unable to do. The dependence of fretting fatigue life on slip amplitude is captured demonstrating a critical range of slip amplitudes, relating to the partial slip regime, for which a minimum in life is predicted. The method is also shown to predict the occurrence of cracking at specific locations in the slip region. The method indicates that these phenomena are dependent on the relative rates of wear and fatigue damage occurring across the contact. The second implementation treats the nucleation and propagation fatigue phases separately. The fatigue model adopted above is reformulated to serve as a nucleation model, whilst the crack propagation phase is based on a fracture mechanics perspective. The method is used to study the effect of wear on both the propagation and nucleation aspects of fatigue. The method is also employed to investigate the role of fretting wear in fretting fatigue crack arrest.
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format Thesis (University of Nottingham only)
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spelling nottingham-106812025-02-28T11:09:12Z https://eprints.nottingham.ac.uk/10681/ Numerical modelling of the effect of fretting wear on fretting fatigue Madge, Jason John This thesis reports the development of a method for predicting the fretting fatigue life of a system which takes into consideration the material removed as a result of fretting wear. The first implementation is based on a critical plane, multiaxial fatigue model and a damage accumulation framework. The model is applied to both ‘cylinder on flat’ and ‘rounded edge punch on flat’ geometries, for which experimental data from the literature is used for comparison.. The method is able to predict a number of key experimentally observed phenomena, which existing approaches are unable to do. The dependence of fretting fatigue life on slip amplitude is captured demonstrating a critical range of slip amplitudes, relating to the partial slip regime, for which a minimum in life is predicted. The method is also shown to predict the occurrence of cracking at specific locations in the slip region. The method indicates that these phenomena are dependent on the relative rates of wear and fatigue damage occurring across the contact. The second implementation treats the nucleation and propagation fatigue phases separately. The fatigue model adopted above is reformulated to serve as a nucleation model, whilst the crack propagation phase is based on a fracture mechanics perspective. The method is used to study the effect of wear on both the propagation and nucleation aspects of fatigue. The method is also employed to investigate the role of fretting wear in fretting fatigue crack arrest. 2009 Thesis (University of Nottingham only) NonPeerReviewed application/pdf en arr https://eprints.nottingham.ac.uk/10681/1/ThesisFinal.pdf Madge, Jason John (2009) Numerical modelling of the effect of fretting wear on fretting fatigue. PhD thesis, University of Nottingham.
spellingShingle Madge, Jason John
Numerical modelling of the effect of fretting wear on fretting fatigue
title Numerical modelling of the effect of fretting wear on fretting fatigue
title_full Numerical modelling of the effect of fretting wear on fretting fatigue
title_fullStr Numerical modelling of the effect of fretting wear on fretting fatigue
title_full_unstemmed Numerical modelling of the effect of fretting wear on fretting fatigue
title_short Numerical modelling of the effect of fretting wear on fretting fatigue
title_sort numerical modelling of the effect of fretting wear on fretting fatigue
url https://eprints.nottingham.ac.uk/10681/