The Influence of Surface Topography on Energy Dissipation and Compliance in Tangentially Loaded Elastic Contacts
The influence of non-Gaussian surface roughness on elastic contacts loaded in both normal and tangential directions has been investigated. A numerical solution method based on the multilevel scheme and incorporating the theorem of Ciavarella/Jaeger has been implemented, which allows fast calculation...
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| Veröffentlicht in: | Journal of tribology 2012-01, Vol.134 (1) |
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| creator | Medina, Simon Olver, Andrew V Dini, Daniele |
| description | The influence of non-Gaussian surface roughness on elastic contacts loaded in both normal and tangential directions has been investigated. A numerical solution method based on the multilevel scheme and incorporating the theorem of Ciavarella/Jaeger has been implemented, which allows fast calculation of partial slip loading conditions, including the energy dissipation for a fully reversed tangential loading cycle. The effect of varying roughness rms, skewness, kurtosis, and correlation lengths on contact areas, stiffness values, and energy dissipation is presented, and the significance of these parameters and of the loading method are discussed. It was found that the energy dissipation can be greatly increased by greater surface roughness. Maps showing how the energy dissipation is distributed within the contact are presented, which provide some explanation for this observation and the scatter that may occur for surfaces of nominally similar roughness. The suitability of these parameters for predicting the contact behavior of rough surfaces is also considered. |
| doi_str_mv | 10.1115/1.4005641 |
| format | Article |
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A numerical solution method based on the multilevel scheme and incorporating the theorem of Ciavarella/Jaeger has been implemented, which allows fast calculation of partial slip loading conditions, including the energy dissipation for a fully reversed tangential loading cycle. The effect of varying roughness rms, skewness, kurtosis, and correlation lengths on contact areas, stiffness values, and energy dissipation is presented, and the significance of these parameters and of the loading method are discussed. It was found that the energy dissipation can be greatly increased by greater surface roughness. Maps showing how the energy dissipation is distributed within the contact are presented, which provide some explanation for this observation and the scatter that may occur for surfaces of nominally similar roughness. 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Tribol</addtitle><description>The influence of non-Gaussian surface roughness on elastic contacts loaded in both normal and tangential directions has been investigated. A numerical solution method based on the multilevel scheme and incorporating the theorem of Ciavarella/Jaeger has been implemented, which allows fast calculation of partial slip loading conditions, including the energy dissipation for a fully reversed tangential loading cycle. The effect of varying roughness rms, skewness, kurtosis, and correlation lengths on contact areas, stiffness values, and energy dissipation is presented, and the significance of these parameters and of the loading method are discussed. It was found that the energy dissipation can be greatly increased by greater surface roughness. Maps showing how the energy dissipation is distributed within the contact are presented, which provide some explanation for this observation and the scatter that may occur for surfaces of nominally similar roughness. The suitability of these parameters for predicting the contact behavior of rough surfaces is also considered.</description><subject>Applied sciences</subject><subject>Contact Mechanics</subject><subject>Exact sciences and technology</subject><subject>Friction, wear, lubrication</subject><subject>Fundamental areas of phenomenology (including applications)</subject><subject>Machine components</subject><subject>Mechanical contact (friction...)</subject><subject>Mechanical engineering. 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Machine design</topic><topic>Physics</topic><topic>Solid mechanics</topic><topic>Structural and continuum mechanics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Medina, Simon</creatorcontrib><creatorcontrib>Olver, Andrew V</creatorcontrib><creatorcontrib>Dini, Daniele</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><jtitle>Journal of tribology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Medina, Simon</au><au>Olver, Andrew V</au><au>Dini, Daniele</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The Influence of Surface Topography on Energy Dissipation and Compliance in Tangentially Loaded Elastic Contacts</atitle><jtitle>Journal of tribology</jtitle><stitle>J. Tribol</stitle><date>2012-01-01</date><risdate>2012</risdate><volume>134</volume><issue>1</issue><issn>0742-4787</issn><eissn>1528-8897</eissn><coden>JOTRE9</coden><abstract>The influence of non-Gaussian surface roughness on elastic contacts loaded in both normal and tangential directions has been investigated. A numerical solution method based on the multilevel scheme and incorporating the theorem of Ciavarella/Jaeger has been implemented, which allows fast calculation of partial slip loading conditions, including the energy dissipation for a fully reversed tangential loading cycle. The effect of varying roughness rms, skewness, kurtosis, and correlation lengths on contact areas, stiffness values, and energy dissipation is presented, and the significance of these parameters and of the loading method are discussed. It was found that the energy dissipation can be greatly increased by greater surface roughness. Maps showing how the energy dissipation is distributed within the contact are presented, which provide some explanation for this observation and the scatter that may occur for surfaces of nominally similar roughness. The suitability of these parameters for predicting the contact behavior of rough surfaces is also considered.</abstract><cop>New York, NY</cop><pub>ASME</pub><doi>10.1115/1.4005641</doi></addata></record> |
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| source | ASME Transactions Journals (Current); Alma/SFX Local Collection |
| subjects | Applied sciences Contact Mechanics Exact sciences and technology Friction, wear, lubrication Fundamental areas of phenomenology (including applications) Machine components Mechanical contact (friction...) Mechanical engineering. Machine design Physics Solid mechanics Structural and continuum mechanics |
| title | The Influence of Surface Topography on Energy Dissipation and Compliance in Tangentially Loaded Elastic Contacts |
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