Foundations of nanomechanics pdf

The goal of this book is to present a balanced treatment of both the theory of the methodology, as well as some practical aspects of conducting the simulations and models. The first half of the book covers some fundamental modeling and simulation techniques ranging from ab-inito methods to the continuum scale.

Included in this set of methods are several different concurrent multiscale methods for bridging time and length scales applicable to mechanics at the nanoscale regime. The second half of the book presents a range of case studies from a varied selection of research groups focusing either on a the application of multiscale modeling to a specific nanomaterial, or novel analysis techniques aimed at exploring nanomechanics. Readers are also directed to helpful sites and other resources throughout the book where the simulation codes and methodologies discussed herein can be accessed.

Emphasis on the practicality of the detailed techniques is especially felt in the latter half of the book, which is dedicated to specific examples to study nanomechanics and multiscale materials behavior. An instructive avenue for learning how to effectively apply these simulation tools to solve nanomechanics problems is to study previous endeavors. Therefore, each chapter is written by a unique team of experts who have used multiscale materials modeling to solve a practical nanomechanics problem.

These chapters provide an extensive picture of the multiscale materials landscape from problem statement through the final results and outlook, providing readers with a roadmap for incorporating these techniques into their own research.

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.

Over the past few decades, the processes used to produce these devices have improved, supporting dramatic reductions in size, but there are fundamental limits to this trend that require a new production paradigm. The discovery of graphene ushered in a new era of condensed matter physics research, that of two-dimensional materials. Being only a few atomic layers thick, this new class of materials exhibit unprecedented mechanical strength and flexibility and can couple to electric, magnetic and optical signals.

Additionally, they can be combined to form van der Waals heterostructures in an almost limitless number of ways. Graphene and its insulating analogue, hexagonal boron nitride, are the most widely studied materials and their heterostructures are used as the test-bed for potential device architectures and capabilities.

Interlayer friction, electro-mechanical actuation and surface reconstruction are some of the key phenomena investigated in this work. The content chiefly focuses on the out-of-plane mechanical behaviors of graphene, and their effects on the mechanical properties of graphene composites. In addition, the book puts forward original theoretical mechanical models based on continuum mechanics, discontinuous effects and atomistic simulations.

The findings presented here can provide the basis for valuable guidelines on the design and application of graphene and graphene composites in the field of nanomechanics. Foundations of Nanomechanics pp Cite as. In this chapter we move from the one-dimensional atomic chain to two- and three-dimensional systems. We introduce the concept of the crystal lattice and the corresponding concept of the reciprocal lattice; we then work out the formalism for calculating the normal modes in a three-dimensional infinite solid, with a brief discussion of how this can also be applied to finite objects.

We conclude our discussion by discussing the quantized excitations of the vibrational normal modes of the solid, known as phonons. The properties of phonons and of the phonon gas will be worked out in Chap. Unable to display preview. Chapters address nanomodification of the surface of solids, a refined method for calculating nanomaterials with cracks, the formation of nanocomposites based on nanoparticles, and methods for the experimental determination of the mechanical parameters of nanomaterials.

The book is a useful resource for engineers, technologist The book is a useful resource for engineers, technologists, and researchers interested in methods of nanomechanics and the application of advanced nanomaterials with complex behavior. By Rhizlane Hatel and Mimouna Baitoul. This is made possible by the EU reverse charge method. Edited by Alexander V. Edited by Andreia Ferreira de Castro Gomes. Edited by Yanina Fedorenko.