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Nonsmooth/Nonconvex Mechanics

Nonsmooth/Nonconvex Mechanics
Author: David Yang Gao
Publisher: Springer Science & Business Media
Total Pages: 505
Release: 2013-12-01
Genre: Mathematics
ISBN: 1461302757

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Nonsmooth and nonconvex models arise in several important applications of mechanics and engineering. The interest in this field is growing from both mathematicians and engineers. The study of numerous industrial applications, including contact phenomena in statics and dynamics or delamination effects in composites, require the consideration of nonsmoothness and nonconvexity. The mathematical topics discussed in this book include variational and hemivariational inequalities, duality, complementarity, variational principles, sensitivity analysis, eigenvalue and resonance problems, and minimax problems. Applications are considered in the following areas among others: nonsmooth statics and dynamics, stability of quasi- static evolution processes, friction problems, adhesive contact and debonding, inverse problems, pseudoelastic modeling of phase transitions, chaotic behavior in nonlinear beams, and nonholonomic mechanical systems. This volume contains 22 chapters written by various leading researchers and presents a cohesive and authoritative overview of recent results and applications in the area of nonsmooth and nonconvex mechanics. Audience: Faculty, graduate students, and researchers in applied mathematics, optimization, control and engineering.


Nonsmooth Mechanics and Applications

Nonsmooth Mechanics and Applications
Author: J.J. Moreau
Publisher: Springer
Total Pages: 466
Release: 2014-05-04
Genre: Science
ISBN: 370912624X

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Nonconvex Optimization in Mechanics

Nonconvex Optimization in Mechanics
Author: E.S. Mistakidis
Publisher: Springer Science & Business Media
Total Pages: 295
Release: 2013-11-21
Genre: Technology & Engineering
ISBN: 1461558298

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Nonconvexity and nonsmoothness arise in a large class of engineering applica tions. In many cases of practical importance the possibilities offered by opti mization with its algorithms and heuristics can substantially improve the per formance and the range of applicability of classical computational mechanics algorithms. For a class of problems this approach is the only one that really works. The present book presents in a comprehensive way the application of opti mization algorithms and heuristics in smooth and nonsmooth mechanics. The necessity of this approach is presented to the reader through simple, represen tative examples. As things become more complex, the necessary material from convex and nonconvex optimization and from mechanics are introduced in a self-contained way. Unilateral contact and friction problems, adhesive contact and delamination problems, nonconvex elastoplasticity, fractal friction laws, frames with semi rigid connections, are among the applications which are treated in details here. Working algorithms are given for each application and are demonstrated by means of representative examples. The interested reader will find helpful references to up-to-date scientific and technical literature so that to be able to work on research or engineering topics which are not directly covered here.


Topics in Nonsmooth Mechanics

Topics in Nonsmooth Mechanics
Author: Jean Jacques Moreau
Publisher: Birkhauser
Total Pages: 358
Release: 1988
Genre: Mathematics
ISBN:

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Nonsmooth/nonconvex mechanics with applications in engineering : ; a volume dedicated to the memory of Prof. P. D. Panagiotopoulos ; [proceedings of the international conference, 5-6 July 2002, Thessaloniki, Greece]

Nonsmooth/nonconvex mechanics with applications in engineering : ; a volume dedicated to the memory of Prof. P. D. Panagiotopoulos ; [proceedings of the international conference, 5-6 July 2002, Thessaloniki, Greece]
Author: P. D. Panagiotopoulos
Publisher:
Total Pages: 482
Release: 2002
Genre: Mechanics, Analytic
ISBN: 9789604317868

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Nonsmooth Mechanics and Analysis

Nonsmooth Mechanics and Analysis
Author: Pierre Alart
Publisher: Springer Science & Business Media
Total Pages: 318
Release: 2006-06-26
Genre: Technology & Engineering
ISBN: 0387291954

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This book’s title, Nonsmooth Mechanics and Analysis, refers to a major domain of mechanics, particularly those initiated by the works of Jean Jacques Moreau. Nonsmooth mechanics concerns mechanical situations with possible nondifferentiable relationships, eventually discontinuous, as unilateral contact, dry friction, collisions, plasticity, damage, and phase transition. The basis of the approach consists in dealing with such problems without resorting to any regularization process. Indeed, the nonsmoothness is due to simplified mechanical modeling; a more sophisticated model would require too large a number of variables, and sometimes the mechanical information is not available via experimental investigations. Therefore, the mathematical formulation becomes nonsmooth; regularizing would only be a trick of arithmetic without any physical justification. Nonsmooth analysis was developed, especially in Montpellier, to provide specific theoretical and numerical tools to deal with nonsmoothness. It is important not only in mechanics but also in physics, robotics, and economics. Audience This book is intended for researchers in mathematics and mechanics.


Quasidifferentiability and Nonsmooth Modelling in Mechanics, Engineering and Economics

Quasidifferentiability and Nonsmooth Modelling in Mechanics, Engineering and Economics
Author: Vladimir F. Demyanov
Publisher: Springer Science & Business Media
Total Pages: 362
Release: 2013-11-21
Genre: Computers
ISBN: 1461541131

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Nonsmooth energy functions govern phenomena which occur frequently in nature and in all areas of life. They constitute a fascinating subject in mathematics and permit the rational understanding of yet unsolved or partially solved questions in mechanics, engineering and economics. This is the first book to provide a complete and rigorous presentation of the quasidifferentiability approach to nonconvex, possibly nonsmooth, energy functions, of the derivation and study of the corresponding variational expressions in mechanics, engineering and economics, and of their numerical treatment. The new variational formulations derived are illustrated by many interesting numerical problems. The techniques presented will permit the reader to check any solution obtained by other heuristic techniques for nonconvex, nonsmooth energy problems. A civil, mechanical or aeronautical engineer can find in the book the only existing mathematically sound technique for the formulation and study of nonconvex, nonsmooth energy problems. Audience: The book will be of interest to pure and applied mathematicians, physicists, researchers in mechanics, civil, mechanical and aeronautical engineers, structural analysts and software developers. It is also suitable for graduate courses in nonlinear mechanics, nonsmooth analysis, applied optimization, control, calculus of variations and computational mechanics.


Dynamics and Bifurcations of Non-Smooth Mechanical Systems

Dynamics and Bifurcations of Non-Smooth Mechanical Systems
Author: Remco Leine
Publisher: Springer Science & Business Media
Total Pages: 252
Release: 2006-06-13
Genre: Mathematics
ISBN: 9783540219873

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This monograph combines the knowledge of both the field of nonlinear dynamics and non-smooth mechanics, presenting a framework for a class of non-smooth mechanical systems using techniques from both fields. The book reviews recent developments, and opens the field to the nonlinear dynamics community. This book addresses researchers and graduate students in engineering and mathematics interested in the modelling, simulation and dynamics of non-smooth systems and nonlinear dynamics.


Non-Smooth Thermomechanics

Non-Smooth Thermomechanics
Author: Michel Fremond
Publisher: Springer Science & Business Media
Total Pages: 487
Release: 2013-03-14
Genre: Science
ISBN: 3662048000

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Based on practical problems in mechanical engineering, here the author develops the fundamental concepts of non-smooth mechanics and introduces the necessary background material needed to deal with mechanics involving discontinuities and non-smooth constraints.


Nonsmooth Mechanics and Convex Optimization

Nonsmooth Mechanics and Convex Optimization
Author: Yoshihiro Kanno
Publisher: CRC Press
Total Pages: 447
Release: 2011-04-05
Genre: Science
ISBN: 1420094238

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"This book concerns matter that is intrinsically difficult: convex optimization, complementarity and duality, nonsmooth analysis, linear and nonlinear programming, etc. The author has skillfully introduced these and many more concepts, and woven them into a seamless whole by retaining an easy and consistent style throughout. The book is not all theory: There are many real-life applications in structural engineering, cable networks, frictional contact problems, and plasticity... I recommend it to any reader who desires a modern, authoritative account of nonsmooth mechanics and convex optimization." — Prof. Graham M.L. Gladwell, Distinguished Professor Emeritus, University of Waterloo, Fellow of the Royal Society of Canada "... reads very well—the structure is good, the language and style are clear and fluent, and the material is rendered accessible by a careful presentation that contains many concrete examples. The range of applications, particularly to problems in mechanics, is admirable and a valuable complement to theoretical and computational investigations that are at the forefront of the areas concerned." — Prof. B. Daya Reddy, Department of Mathematics and Applied Mathematics, Director of Centre for Research in Computational and Applied Mechanics, University of Cape Town, South Africa "Many materials and structures (e.g., cable networks, membrane) involved in practical engineering applications have complex responses that cannot be described by smooth constitutive relations. ... The author shows how these difficult problems can be tackled in the framework of convex analysis by arranging the carefully chosen materials in an elegant way. Most of the contents of the book are from the original contributions of the author. They are both mathematically rigorous and readable. This book is a must-read for anyone who intends to get an authoritative and state-of-art description for the analysis of nonsmooth mechanics problems with theory and tools from convex analysis." — Prof. Xu Guo, State Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics, Dalian University of Technology