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Please use this identifier to cite or link to this item: http://eprint.iitd.ac.in/handle/2074/213

Title: An approach towards fatigue wear modelling
Authors: Karmakar, S
Rao, U R K
Sethuramiah, A
Keywords: Fatigue
Rolling Contact
Sliding contact
Wear modelling
Issue Date: 1996
Citation: Wear, 198(1-2), 242-250
Abstract: Experiments have been conducted in a disc machine under rolling/sliding contact with EN3I and a mild steel disc pair in boundary lubrication. The wear has been modelled oxa the basis of asperity fatigue due to repetitive tensile stresses. The modelling requires information regarding damage depth and the number of cycles needed fur fatigue to occur. This information was obtained by a theoretical analysis of previous experimental work in which cyclically pre-stressed spots were subjected to one-pass sliding. The damage in cyclic stressing was considered to be due to tensile stresses acting at the periphery of asperity contacts due to normal stresses alone. The one-pass sliding on these spots provides information on removal depth in relation to the level of pre-stressing. The Wohler type fatigue equation, and damage depth information have been adapted to rolling/sliding contact and discussed in the paper. The experimental wear rate observed in rolling/sliding contacts could be successfully modelled on this basis.
URI: http://eprint.iitd.ac.in/dspace/handle/2074/213
Appears in Collections:Mechanical Engineering

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