Method of Dimensionality Reduction in Contact Mechanics

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Release : 2018-08-08
Genre : Science
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Book Rating : 824/5 ( reviews)

Method of Dimensionality Reduction in Contact Mechanics - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Method of Dimensionality Reduction in Contact Mechanics write by Valentin L. Popov. This book was released on 2018-08-08. Method of Dimensionality Reduction in Contact Mechanics available in PDF, EPUB and Kindle. The present book is a collection of open-access papers describing the foundations and applications of the Method of Dimensionality Reduction (MDR), first published in the Journal “Facta Universitatis. Series Mechanical Enginerring” in the years 2014-2018. The Method of Dimensionality Reduction (MDR) is a method of calculation and simulation of contacts of elastic and viscoelastic bodies. It consists essentially of two simple steps: (a) substitution of the three-dimensional continuum by a uniquely defined one-dimensional linearly elastic or viscoelastic foundation (Winkler foundation) and (b) transformation of the three-dimensional profile of the contacting bodies by means of the MDR-transformation. As soon as these two steps are done, the contact problem can be considered to be solved. For axial symmetric contacts, only a small calculation by hand is required which does not exceed elementary calculus and will not be a barrier for any practically-oriented engineer. Alternatively, the MDR can be implemented numerically, which is almost trivial due to the independence of the foundation elements. In spite of its simplicity, all results are exact. The present book brings together papers covering the most important aspects of the MDR and providing a practical guide for its use.

Method of Dimensionality Reduction in Contact Mechanics and Friction

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Release : 2014-08-19
Genre : Science
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Book Rating : 762/5 ( reviews)

Method of Dimensionality Reduction in Contact Mechanics and Friction - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Method of Dimensionality Reduction in Contact Mechanics and Friction write by Valentin L. Popov. This book was released on 2014-08-19. Method of Dimensionality Reduction in Contact Mechanics and Friction available in PDF, EPUB and Kindle. This book describes for the first time a simulation method for the fast calculation of contact properties and friction between rough surfaces in a complete form. In contrast to existing simulation methods, the method of dimensionality reduction (MDR) is based on the exact mapping of various types of three-dimensional contact problems onto contacts of one-dimensional foundations. Within the confines of MDR, not only are three dimensional systems reduced to one-dimensional, but also the resulting degrees of freedom are independent from another. Therefore, MDR results in an enormous reduction of the development time for the numerical implementation of contact problems as well as the direct computation time and can ultimately assume a similar role in tribology as FEM has in structure mechanics or CFD methods, in hydrodynamics. Furthermore, it substantially simplifies analytical calculation and presents a sort of “pocket book edition” of the entirety contact mechanics. Measurements of the rheology of bodies in contact as well as their surface topography and adhesive properties are the inputs of the calculations. In particular, it is possible to capture the entire dynamics of a system – beginning with the macroscopic, dynamic contact calculation all the way down to the influence of roughness – in a single numerical simulation model. Accordingly, MDR allows for the unification of the methods of solving contact problems on different scales. The goals of this book are on the one hand, to prove the applicability and reliability of the method and on the other hand, to explain its extremely simple application to those interested.

Contact Mechanics and Friction

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Release : 2017-03-10
Genre : Science
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Book Rating : 813/5 ( reviews)

Contact Mechanics and Friction - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Contact Mechanics and Friction write by Valentin L. Popov. This book was released on 2017-03-10. Contact Mechanics and Friction available in PDF, EPUB and Kindle. This application-oriented book introduces readers to the associations and relationships between contact mechanics and friction, providing them with a deeper understanding of tribology. It addresses the related phenomena of contacts, adhesion, capillary forces, friction, lubrication, and wear from a consistent point of view. The author presents (1) methods for rough estimates of tribological quantities, (2) simple and general methods for analytical calculations, and (3) the crossover into numerical simulation methods, the goal being to convey a consistent view of tribological processes at various scales of magnitude (from nanotribology to earthquake research). The book also explores the system dynamic aspects of tribological systems, such as squeal and its suppression, as well as other types of instabilities and spatial patterns. It includes problems and worked-out solutions for the respective chapters, giving readers ample opportunity to apply the theory to practical situations and to deepen their understanding of the material discussed. The second edition has been extended with a more detailed exposition of elastohydrodynamic lubrication, an updated chapter on numerical simulation methods in contact mechanics, a new section on fretting in the chapter on wear, as well as numerous new exercises and examples, which help to make the book an excellent reference guide.

Handbook of Contact Mechanics

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Release : 2019-04-26
Genre : Science
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Book Rating : 092/5 ( reviews)

Handbook of Contact Mechanics - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Handbook of Contact Mechanics write by Valentin L. Popov. This book was released on 2019-04-26. Handbook of Contact Mechanics available in PDF, EPUB and Kindle. This open access book contains a structured collection of the complete solutions of all essential axisymmetric contact problems. Based on a systematic distinction regarding the type of contact, the regime of friction and the contact geometry, a multitude of technically relevant contact problems from mechanical engineering, the automotive industry and medical engineering are discussed. In addition to contact problems between isotropic elastic and viscoelastic media, contact problems between transversal-isotropic elastic materials and functionally graded materials are addressed, too. The optimization of the latter is a focus of current research especially in the fields of actuator technology and biomechanics. The book takes into account adhesive effects which allow access to contact-mechanical questions about micro- and nano-electromechanical systems. Solutions of the contact problems include both the relationships between the macroscopic force, displacement and contact length, as well as the stress and displacement fields at the surface and, if appropriate, within the half-space medium. Solutions are always obtained with the simplest available method - usually with the method of dimensionality reduction (MDR) or approaches which use the solution of the non-adhesive normal contact problem to solve the respective contact problem.

Contact mechanics perspective of tribology

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Release : 2021-06-04
Genre : Technology & Engineering
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Book Rating : 618/5 ( reviews)

Contact mechanics perspective of tribology - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Contact mechanics perspective of tribology write by Irina Goryacheva. This book was released on 2021-06-04. Contact mechanics perspective of tribology available in PDF, EPUB and Kindle.