Mechanics Of Hysteretic Adhesive Elastic Mechanical Contact Between Rough Surfaces
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Mechanics Of Hysteretic Adhesive Elastic Mechanical Contact Between Rough Surfaces
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Author : Haneesh Kesari
language : en
Publisher: Stanford University
Release Date : 2011
Mechanics Of Hysteretic Adhesive Elastic Mechanical Contact Between Rough Surfaces written by Haneesh Kesari and has been published by Stanford University this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with categories.
In experiments that involve contact with adhesion between two surfaces, as found in atomic force microscopy or nanoindentation, two distinct contact force (P ) vs. indentation-depth (h) curves are often measured depending on whether the indenter moves towards or away from the sample. The origin of this hysteresis is not well understood and is often attributed to moisture, plasticity or viscoelasticity. We present experiments, atomistic simulations and continuum mechanics models that will show that hysteresis can exist without these effects, and that its magnitude depends on surface roughness. We explain the observed hysteresis as the result of a series of surface instabilities, where the contact area grows or recedes by a finite amount. We also demonstrate that when this is the case material properties can be estimated uniquely from contact experiments even when the measured P -h curves are not unique. The hysteresis energy loss during contact is also a measure of the adhesive toughness of the contact interface. We show experimentally that roughness can both increase and decrease the adhesive toughness of the contact interface. We show through numerical simulation of continuum adhesive contact models that the contact interface is optimally tough at conditions at which the contact region is at the cusp of the transition through which it turns form being mostly simply connected to being predominantly multiply connected.
Mechanics Of Hysteretic Adhesive Elastic Mechanical Contact Between Rough Surfaces
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Author : Haneesh Kesari
language : en
Publisher:
Release Date : 2011
Mechanics Of Hysteretic Adhesive Elastic Mechanical Contact Between Rough Surfaces written by Haneesh Kesari and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with categories.
In experiments that involve contact with adhesion between two surfaces, as found in atomic force microscopy or nanoindentation, two distinct contact force (P) vs. indentation-depth (h) curves are often measured depending on whether the indenter moves towards or away from the sample. The origin of this hysteresis is not well understood and is often attributed to moisture, plasticity or viscoelasticity. We present experiments, atomistic simulations and continuum mechanics models that will show that hysteresis can exist without these effects, and that its magnitude depends on surface roughness. We explain the observed hysteresis as the result of a series of surface instabilities, where the contact area grows or recedes by a finite amount. We also demonstrate that when this is the case material properties can be estimated uniquely from contact experiments even when the measured P -h curves are not unique. The hysteresis energy loss during contact is also a measure of the adhesive toughness of the contact interface. We show experimentally that roughness can both increase and decrease the adhesive toughness of the contact interface. We show through numerical simulation of continuum adhesive contact models that the contact interface is optimally tough at conditions at which the contact region is at the cusp of the transition through which it turns form being mostly simply connected to being predominantly multiply connected.
Friction And Wear From Elementary Mechanisms To Macroscopic Behavior
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Author : Valentin L. Popov
language : en
Publisher: Frontiers Media SA
Release Date : 2019-08-21
Friction And Wear From Elementary Mechanisms To Macroscopic Behavior written by Valentin L. Popov and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-08-21 with categories.
Friction and the interaction of surfaces can usually be felt at the scale of the contacting bodies. Indeed, phenomena such as the frictional resistance or the occurrence of wear can be observable with plain eye, but to characterize them and in order to make a prediction, a more detailed understanding at smaller scales is often required. These can include individual roughness peaks or single molecule interactions. In this Research Topic, we have gathered a collection of articles representing the state of the art in tribology’s endeavor to bridge the gap between nano scale elementary research and the macroscopic behavior of contacting bodies. These articles showcase the breadth of questions related to the interaction of micro and macro scale and give examples of successful transfer of insights from one to the other. We are delighted to present this Research Topic to the reader with the hope that it will further inspire and stimulate research in the field.
Contact Mechanics Perspective Of Tribology
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Author : Irina Goryacheva
language : en
Publisher: Frontiers Media SA
Release Date : 2021-06-04
Contact Mechanics Perspective Of Tribology written by Irina Goryacheva and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-06-04 with Technology & Engineering categories.
Tribology On The Small Scale
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Author : C. Mathew Mate
language : en
Publisher:
Release Date : 2019
Tribology On The Small Scale written by C. Mathew Mate and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with Science categories.
Friction, lubrication, adhesion, and wear are prevalent physical phenomena in everyday life and in many key technologies. This book explains how these tribological phenomena originate from atomistic and microscale physical phenomena and shows how this understanding can be used to solve macroscale tribology problems.
Nanotribology And Nanomechanics Ii
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Author : Bharat Bhushan
language : en
Publisher: Springer Science & Business Media
Release Date : 2011-05-30
Nanotribology And Nanomechanics Ii written by Bharat Bhushan and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-05-30 with Technology & Engineering categories.
The comprehensive reference and textbook serves as a timely, practical introduction to the principles of nanotribology and nanomechanics. Assuming some familiarity with macroscopic tribology, the book comprises chapters by internationally recognized experts, who integrate knowledge of the field from the mechanics and materials-science perspectives. They cover key measurement techniques, their applications, and theoretical modelling of interfaces, each beginning their contributions with macro- and progressing to microconcepts.
Springer Handbook Of Nanotechnology
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Author : Bharat Bhushan
language : en
Publisher: Springer Science & Business Media
Release Date : 2004-01-19
Springer Handbook Of Nanotechnology written by Bharat Bhushan and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-01-19 with Technology & Engineering categories.
This major work has established itself as the definitive reference in the nanoscience and nanotechnology area in one volume. In presents nanostructures, micro/nanofabrication, and micro/nanodevices. Special emphasis is on scanning probe microscopy, nanotribology and nanomechanics, molecularly thick films, industrial applications and microdevice reliability, and on social aspects. Reflecting further developments, the new edition has grown from six to eight parts. The latest information is added to fields such as bionanotechnology, nanorobotics, and NEMS/MEMS reliability. This classic reference book is orchestrated by a highly experienced editor and written by a team of distinguished experts for those learning about the field of nanotechnology.
Proceedings Of Its Iftomm 2024
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Author : Enrico Ciulli
language : en
Publisher: Springer Nature
Release Date : 2024-06-19
Proceedings Of Its Iftomm 2024 written by Enrico Ciulli and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-06-19 with Technology & Engineering categories.
This book presents the proceedings of the 5th International Tribology Symposium of IFToMM (ITS-IFToMM 2024), held in Salerno, Italy, on May 6th-8th, 2024, jointly with the 9th AIT (Italian Tribology Association) Workshop “Tribology and Industry”. It includes peer-reviewed papers on the latest advances in tribology, discussing topics such as friction, wear, lubrication, lubricants, biotribology, tribomaterials, solid lubricants, surface engineering, tribotesting, tribological design and optimization of machine components, modeling in tribology, contact mechanics, micro/nanotribology, tribology in power generating systems, metal working tribology, tribology in road transport and tribology in medicine. A valuable, up-to-date resource, it offers an essential overview of the subject for scientists and practitioners alike and inspires further investigations and research.
Modern Tribology Handbook Two Volume Set
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Author : Bharat Bhushan
language : en
Publisher: CRC Press
Release Date : 2000-12-28
Modern Tribology Handbook Two Volume Set written by Bharat Bhushan and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000-12-28 with Technology & Engineering categories.
Recent research has led to a deeper understanding of the nature and consequences of interactions between materials on an atomic scale. The results have resonated throughout the field of tribology. For example, new applications require detailed understanding of the tribological process on macro- and microscales and new knowledge guides the rational
The Handbook Of Surface Imaging And Visualization
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Author : Arthur T. Hubbard
language : en
Publisher: CRC Press
Release Date : 2022-04-19
The Handbook Of Surface Imaging And Visualization written by Arthur T. Hubbard and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-04-19 with Computers categories.
This exciting new handbook investigates the characterization of surfaces. It emphasizes experimental techniques for imaging of solid surfaces and theoretical strategies for visualization of surfaces, areas in which rapid progress is currently being made. This comprehensive, unique volume is the ideal reference for researchers needing quick access to the latest developments in the field and an excellent introduction to students who want to acquaint themselves with the behavior of electrons, atoms, molecules, and thin-films at surfaces. It's all here, under one cover! The Handbook of Surface Imaging and Visualization is filled with sixty-four of the most powerful techniques for characterization of surfaces and interfaces in the material sciences, medicine, biology, geology, chemistry, and physics. Each discussion is easy to understand, succinct, yet incredibly informative. Data illustrate present research in each area of study. A wide variety of the latest experimental and theoretical approaches are included with both practical and fundamental objectives in mind. Key references are included for the reader's convenience for locating the most recent and useful work on each topic. Readers are encouraged to contact the authors or consult the references for additional information. This is the best ready reference available today. It is a perfect source book or supplemental text on the subject.