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Title:
Numerical modelling of crack path in the lubricated rolling-sliding contact problems
Authors:
ID
Glodež, Srečko
(
Author
)
ID
Potočnik, Rok
(
Author
)
ID
Flašker, Jože
(
Author
)
ID
Zafošnik, Boštjan
(
Author
)
Files:
http://dx.doi.org/10.1016/j.engfracmech.2007.02.001
Language:
English
Work type:
Unknown
Typology:
1.01 - Original Scientific Article
Organization:
FS - Faculty of Mechanical Engineering
Abstract:
A two-dimensional computational model for simulation of contact fatigue of lubricated rolling-sliding contact problems is presented. In the model it is assumed that the initial crack of length 0.02 mm is initiated at the surface due to previous mechanical or heat treatment of the material as well as a consequence of running process in an early stage of exploitation. The discretised model with the initial crack is then subjected to the normal contact pressure and tangential loading due to friction between the contacting surfaces. The model also considers the moving contact of the contacting surfaces and fluid trapped in the crack. The crack propagation pathis predicted with the MTS and modified MTS criterion, which takes into account the influence of the stress intensity factor KI and KII, T-stress, stress on the crack surface caused by lubricant pressure inside the crack and critical distance ahead the crack tip. The numerical results correspond well with available experimental data.
Year of publishing:
2008
PID:
20.500.12556/DKUM-27381
UDC:
621.833:539.4:519.61/.64
ISSN on article:
0013-7944
COBISS.SI-ID:
11144470
NUK URN:
URN:SI:UM:DK:NXOTBTGB
Publication date in DKUM:
01.06.2012
Views:
1969
Downloads:
90
Metadata:
Categories:
Misc.
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Record is a part of a journal
Title:
Engineering fracture mechanics
Shortened title:
Eng. fract. mech.
Publisher:
Pergamon Press.
ISSN:
0013-7944
COBISS.SI-ID:
25396736
Secondary language
Language:
English
Keywords:
strojni elementi
,
mehanika
,
zobniki
,
kontaktni problemi
,
utrujanje
,
širjenje razpoke
,
numerični model
,
machine elements
,
mechanics
,
gear tooth flanks
,
pitting
,
contact problems
,
crack propagation
,
numerical model
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