Stress Evolution on 3D Contact Mechanics under Orthotropic Friction and Wear Conditions

Failure in mechanical components under contact or rolling contact conditions usually results from the propagation of cracks generated inside the bodies by the stress state around them. Thus, the correct prediction of the life of mechanical elements requires a correct estimation of both superficial and subsurface stresses. In this context, this Ph.D. Thesis develops formulations on contact mechanics that allow the design of computational tools to successfully predict stress evolution under different contact and rolling conditions. In order to carry out this work, the effects of wear and friction intensity coefficient have been integrated on the same formulation. However, one of the main novelties included in this Ph.D. Thesis is the implementation of orthotropic tribological laws that allow capturing the effect of orthotropic contact conditions on both wear and friction. Thanks to the contact and rolling formulations developed, computational tools have been designed to study the influences of wear and friction on surface and subsurface stresses under both isotropic and orthotropic contact conditions. Both, the formulations and the results achieved in this Ph.D. Thesis, have been collected in three articles of high impact scientific journals, which are included in the appendices.

Author dc:creator

• Julia Lerma, Javier Miguel

Advisor dc:contributor.advisor

• Rodríguez de Tembleque Solano, Luis

Statement dc:rights

• Attribution-NonCommercial-NoDerivatives 4.0 International

Licence dc:rights.uri

• http://creativecommons.org/licenses/by-nc-nd/4.0/

Language dc:language.iso

eng

Handle dc:identifier.uri

https://hdl.handle.net/11441/182125

OAI identifier oai:identifier

oai:idus.us.es:11441/182125