Fracture processes of thin (10–100 μm) polystyrene films on PMMA substrates have been investigated within macroscopic single-asperity sliding contacts with rigid spherical counterfaces. Using the resources of in situ contact visualisation, the development of cracks has been analysed for various values of the ratio of the contact radius to the film thickness. Damage mechanisms were dominated by the formation of a network of regularly spaced cracks at the leading edge of the contact. These processes were analysed in the light of a fragmentation model based on contact mechanics simulations of the stress field induced within cracked films. It emerged from the simulations that the mean spacing between adjacent cracks can be correlated to the strength of the polymer coating.
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World Tribology Congress III
September 12–16, 2005
Washington, D.C., USA
Conference Sponsors:
- Tribology Division
ISBN:
0-7918-4202-9
PROCEEDINGS PAPER
Fragmentation Processes in Polystyrene Films Under Sliding Conditions
A. Chateauminois
,
A. Chateauminois
Ecole Supe´rieure de Physique et de Chimie Industrielles (ESPCI), Paris Cedex, France
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M. C. Baietto Dubourg
,
M. C. Baietto Dubourg
INSA de Lyon, Villeurbanne Cedex, France
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C. Gauthier
,
C. Gauthier
Institut Charles Sadron, Paris Cedex, France
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R. Schirrer
R. Schirrer
Institut Charles Sadron, Paris Cedex, France
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A. Chateauminois
Ecole Supe´rieure de Physique et de Chimie Industrielles (ESPCI), Paris Cedex, France
M. C. Baietto Dubourg
INSA de Lyon, Villeurbanne Cedex, France
C. Gauthier
Institut Charles Sadron, Paris Cedex, France
R. Schirrer
Institut Charles Sadron, Paris Cedex, France
Paper No:
WTC2005-63493, pp. 367-368; 2 pages
Published Online:
November 17, 2008
Citation
Chateauminois, A, Baietto Dubourg, MC, Gauthier, C, & Schirrer, R. "Fragmentation Processes in Polystyrene Films Under Sliding Conditions." Proceedings of the World Tribology Congress III. World Tribology Congress III, Volume 2. Washington, D.C., USA. September 12–16, 2005. pp. 367-368. ASME. https://doi.org/10.1115/WTC2005-63493
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