A thermoelastic asperity contact model has been developed for two-dimensional problems. This model takes into account a steady-state heat transfer and the asperity distortion due to thermoelastic deformations. The work reported in this paper further refines the thermoelastic model to include the shear traction effect on the thermoelastic stress distributions and derives semi-empirical relations for the contact pressure, temperature, asperity separation, and contact area, as functions of friction, asperity properties, and material properties. A method of boundary constraint coefficients is developed to facilitate the stress analyses of a half space using a finite computation domain. [S0742-4787(00)04001-7]

Issue Section:
Technical Papers
Keywords:
thermoelasticity, mechanical contact, heat transfer, friction
Topics:
Pressure, Shear (Mechanics), Thermoelasticity, Temperature, Stress, Surface roughness, Heat, Friction, Stress analysis (Engineering)
1.
Lee
,
S. C.
, and
Ren
,
N.
,
1996
, “
Behavior of Elastic-Plastic Rough Surface Contact as Affected by Surface Topography, Load, and Material Hardness
,”
Tribol. Trans.
,
39
, pp.
16
–
71
.
2.
Bailey
,
D. M.
, and
Sayles
,
R. S.
,
1991
, “
Effect of Roughness and Sliding Friction on Contact Stresses
,”
ASME J. Tribol.
,
113
, pp.
729
–
738
.
3.
Lee
,
S. C.
, and
Ren
,
N.
,
1994
, “
The Subsurface Stress Field Created by Three-Dimensional Rough Bodies in Contact with Traction
,”
Tribol. Trans.
,
37
, pp.
615
–
621
.
4.
Kral
,
E. R.
, and
Komvopoulos
,
K.
,
1997
, “
Three-Dimensional Finite Element Analysis of Subsurface Stress and Strain Fields Due to Sliding Contact on an Elastic-Plastic Layered Medium
,”
ASME J. Tribol.
,
119
, pp.
332
–
341
.
5.
Merriman
,
T.
, and
Kannel
,
J.
,
1989
, “
Analyses of the Role of Surface Roughness on Contact Stresses Between Elastic Cylinders With and Without Soft Surface Coating
,”
ASME J. Tribol.
,
111
, pp.
87
–
94
.
6.
Kuo
,
C. H.
, and
Keer
,
L. M.
,
1992
, “
Contact Stress Analysis of a Layered Transversely Isotropic Half-Space
,”
ASME J. Tribol.
,
114
, pp.
253
–
262
.
7.
Goryacheva
,
I.
,
Sadeghi
,
F.
, and
Nickel
,
D. A.
,
1996
, “
Internal Stresses in Contact of a Rough Body and a Viscoelastic Layered Semi-Infinite Plane
,”
ASME J. Tribol.
,
118
, pp.
131
–
136
.
8.
Azarkhin
,
A.
,
Barber
,
J. R.
, and
Rolf
,
R. L.
,
1989
, “
Combined Thermal-Mechanical Effects in Frictional Sliding
,”
Key Eng. Mater.
,
33
, pp.
135
–
160
.
9.
Ting
,
B. Y.
, and
Winer
,
W. O.
,
1989
, “
Frictional-Induced Thermal Influences in Elastic Contact Between Spherical Asperities
,”
ASME J. Tribol.
,
111
, pp.
315
–
322
.
10.
Ju
,
Y.
, and
Farris
,
T. N.
,
1997
, “
FFT Thermoelastic Solutions for Moving Heat Sources
,”
ASME J. Tribol.
,
119
, pp.
156
–
162
.
11.
Lu
,
C. T.
, and
Bryant
,
M. D.
,
1994
, “
Evaluation of Subsurface Stresses in a Thermal Mound with Application to Wear
,”
Wear
,
177
, pp.
15
–
24
.
12.
Wang, Q., and Liu, G., 1999, “A Thermoelastic Asperity Contact Model Considering Steady-State Heat Transfer,” Tribol. Trans., STLE.
13.
Liu, G., and Wang, Q., 1999, “Contact Stress Analyses Using the Thermoelastic Asperity Contact Model,” submitted to the 54th national conference on Tribology, STLE.
14.
Johnson, K. L., 1996, Contact Mechanics, Cambridge University Press.
15.
Sackfield
,
A.
, and
Hills
,
D.
,
1983
, “
A Note on the Hertzian Contact Problem: A Correlation of Standard Formulas
,”
J. Strain Anal.
,
18
, pp.
195
–
197
.
16.
Sayles
,
R. S.
,
1996
, “
Basic Principles of Rough Surface Contact Analysis Using Numerical Methods
,”
Tribol. Int.
,
29
, pp.
639
–
650
.
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