A fracture mechanics model for the wear of gear teeth flanks by pitting
Fajdiga, Gorazd ; Glodež, Srečko ; Flašker, Jože
In modern industry, the designer is commonly restricted by the requirement that mechanical elements should carry high loads at high speed with size and weight kept to a minimum. For such ...applications, predicting the componet operational failure becomes crucial for ensuring an adequate design. Mechanical elements subjected to rolling and sliding contact conditions fail by several mechanisms, the most prominent of them being surface pitting. The mechanism of pitting caused by rolling/sliding contact is analysed using the fracture mechanics approach. The governing factors are the initial crack length, crack angle, contact pressure with EHD-lubrication conditions, tangential loading due to friction between the contacting surfaces, moving contact conditions, residual stresses due to heat treatment of the material and the hydraulic pressure of trapped fluid acting on the crack surface. The virtual crack extension (VCE) method, implemented in the FEM is then used for simulating the fatigue crack propagation from the initial crack up to the formation of the surface pit. The model is applied to a real pitting problem of a gear and corresponding computational results in terms of pit sizes correlate well to the developemnt of micro pits observed in experimental testing.
It was not necessary to add the material to the shelf.
Bibliographic material was successfully added on shelf.
Adding bibliographical material on shelf was not successful.
Material is already on the shelf.
Permalink
URL:
Impact factor
Access to the JCR database is permitted only to users from Slovenia. Your current IP address is not on the list of IP addresses with access permission, and authentication with the relevant AAI accout is required.
Year
Impact factor
Edition
Category
Classification
JCR
SNIP
JCR
SNIP
JCR
SNIP
JCR
SNIP
Select the library membership card:
DRS,
in which the journal is indexed
Database name
Field
Year
Links to authors' personal bibliographies
Links to information on researchers in the SICRIS system
Subject headings in COBISS General List of Subject Headings
Select pickup location
The material from the parent unit is free. If the material is delivered to the pickup location from another unit, the library may charge you for this service.
