Analytical Modeling for Sliding Friction of Rubber-Road Contact

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dc.contributor.authorVadakkeveetil, Sunishen
dc.contributor.committeechairTaheri, Saieden
dc.contributor.committeememberSandu, Corinaen
dc.contributor.committeememberFerris, John B.en
dc.contributor.departmentMechanical Engineeringen
dc.date.accessioned2017-10-09T22:46:16Zen
dc.date.available2017-10-09T22:46:16Zen
dc.date.issued2017-04-21en
dc.date.sdate2017-04-25en
dc.description.abstractRubber friction is an important aspect to tire engineers, material developers and pavement engineers because of its importance in the estimation of forces generated at the contact, which further helps in optimizing tire and vehicle performances, and to estimate tire wear. It mainly depends on the material properties, contact mechanics and operating condition. There are two major contributions to rubber friction, due to repeated viscoelastic deformation from undulations of surface called hysteresis and due to Vander Waals interaction of the molecules called adhesion. The study focuses on analytical modeling of friction for stationary sliding of rubber block on rough surfaces. Two novel approaches are discussed and compared. Frictional shear stress is obtained from the energy dissipated at the contact interface due to the elastic deformations of rubber block at different length scales. Contact mechanics theories based on continuity approach combined with stochastic processes to estimate the real contact area, mean penetration depth and true stresses at contact depending on operating conditions. Rubber properties are highly temperature dependent. Temperature model developed based on heat diffusion relation is integrated to consider the effects of temperature rise due to frictional heating. Model results are validated with theoretical results of literature. Simulation results of friction model is obtained for Compound A sliding on rough surface. Material properties are obtained using Dynamic Mechanical Analysis and Time temperature superposition. Influence of the friction models under different conditions are discussed. Model results are validated with experimental data from Dynamic friction tester on a 120-grit surface followed by future works.en
dc.description.degreeMaster of Scienceen
dc.identifier.otheretd-04252017-145219en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-04252017-145219/en
dc.identifier.urihttp://hdl.handle.net/10919/79596en
dc.language.isoen_USen
dc.publisherVirginia Techen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectTire frictionen
dc.subjectAnalytical modelen
dc.subjectProfile Measurementen
dc.subjectAdhesion Frictionen
dc.subjectHysteresis Frictionen
dc.subjectRubber Frictionen
dc.titleAnalytical Modeling for Sliding Friction of Rubber-Road Contacten
dc.typeThesisen
dc.type.dcmitypeTexten
thesis.degree.disciplineMechanical Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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