Wear modelling and FEA simulation for dry sliding contacts
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(Published version)
Date
2009
Authors
Ashraf, Muhammad Azeem
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thesis
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Abstract
The thesis presents a Finite Element Analysis (FEA) based wear modellingalgorithm devised in the course of the reported research activity. FEA is used as a tool to calculate nodal pressures at the contact region for small sliding steps. These pressures are then inputted to a customised wear calculating routine. The routine uses averaged wear coefficients (wear rates) obtained from custom designed experiments. The FEA contact geometry is modified after each sliding step to account for the contact height decay, thus determining the volume loss due to wear over usage time, thus predicting the worn geometry. Consequently, the designer gains invaluable insight into the extent of wear-caused component deformation along with the number of usage cycles lapsed prior to such deformation.
School/Discipline
University of South Australia School of Electrical and Information Engineering
School of Electrical and Information Engineering
School of Electrical and Information Engineering
Dissertation Note
PhD Doctorate
Provenance
Copyright Muhammad Azeem Ashraf 2009
Description
EN-AUS