Iutam Symposium on Scaling in Solid Mechanics: Proceedings of the Iutam Symposium Held in Cardiff, Uk, 25-29 June, 2007

ISBN-13: 9781402090325 / Angielski / Twarda / 2008 / 310 str.

F. Borodich

Opis

This volume constitutes the Proceedings of the IUTAM Symposium on 'Scaling in Solid Mechanics', held in Cardiff from 25th to 29th June 2007. The Symposium was convened to address and place on record topical issues in theoretical, experimental and computational aspects of scaling approaches to solid mechanics and related elds. Scaling is a rapidly expanding area of research having multidisciplinary - plications. The expertise represented in the Symposium was accordingly very wide, and many of the world's greatest authorities in their respective elds participated. Scaling methods apply wherever there is similarity across many scales or one need to bridge different scales, e. g. the nanoscale and macroscale. The emphasis in the Symposium was upon fundamental issues such as: mathematical foundations of scaling methods based on transformations and connections between multi-scale approaches and transformations. The Symposium remained focussed on fundam- tal research issues of practical signi cance. The considered topics included damage accumulation, growth of fatigue cracks, development of patterns of aws in earth's core and inice, abrasiveness of rough surfaces, and soon. The Symposium consisted of forty-two oral presentations. All of the lectures were invited. Full record of the programme appears as an Appendix. Several of the lectures are not represented, mainly because of prior commitments to publish elsewhere. The proceedings p- vide a reasonable picture of understanding as it exists at present. The Symposium showed that scaling methods cannot be reduced solely to dimensional analysis and fractal approaches.

Spis treści

CONTENTS; Preface; Universal effective toughness distribution for heterogeneous brittle materials, by S. Roux, Y. Charles, F. Hild and D. Vandembroucq; Scaling transformations in solid mechanics, by F.M. Borodich; Mathematical foundations of non-classical extensions of similarity theory, by S. Rudolph; Perturbing paths of slow cracks in PMMA by local heating, by L. Fradkin, V. Mishakin, N. Alford, A. Dobroskok, A. Linkov and G. Mishuris; Multiscale hybrid materials with negative Poisson’s ratio, by E. Pasternak and A.V. Dyskin; Modelling of size effects with gradient-enriched continuum theories, by H. Askes, I.M. Gitman, A. Simonez and L.J. Sluys; Internal variables and scale separation in dynamics of microstructured solids, by A. Berezovski, J. Engelbrecht and G.A. Maugin; On rational boundary conditions for higher-order long-wave models, by A.A. Pichugin and J.D. Kaplunov; Scaling of physical processes in fluid-driven fracture: perspective from the tip, by D.I. Garagash; Space and time scaling laws induced by the multiscale fracturing of the Arctic sea ice cover, by J. Weiss, D. Marsan and P. Rampal; Similarity approach to Hertz type contact problems, by B.A. Galanov; Multiscale modelling in contact mechanics, by I.G. Goryacheva; Recent progress in energetic probabilistic scaling laws for quasibrittle fracture, by Z.P. Bazant and J.-L. Le; The fractal-statistical nature of size-scale effects on material strength and toughness, by A. Carpinteri and S. Puzzi; Scaling laws forproperties of materials with imperfect interfaces, by J. Wang, B.L. Karihaloo and H.L. Duan; Burst statistics as a criterion for imminent failure, by S. Pradhan, A. Hansen and P.C. Hemmer; Scaling in damage accumulation, by L.R. Botvina; Scaling of effective moduli of generalised continua; A.V. Dyskin and E. Pasternak; An influence of the elastic properties of composite components on the mechanical response of polycrystalline structures at yield level, by T. Sadowski and E. Postek; Statistical length scale in the Weibull strength theory and its interaction with other scaling lengths in quasibrittle failure, by M. Vorechovsky; Finite fracture mechanics for fractal cracks , by A. Yavari and M.P. Wnuk; Fractal geometry and mechanics of randomly folded thin sheets, by A.S. Balankin and O. Susarrey Huerta; Contact mechanics at the insect-plant interface: How do insects stick and how do plants prevent this?, by E.V. Gorb and S.N. Gorb; Morphological evolution of inhomogeneities due to diffusion and epitaxy, by H. Duan; Some new results on fibre models, by H.J. Herrmann, F. Kun and F. Raischel; Self-similar structural systems with no unloading and scale-invariant strength distributions, by D.A. Onishchenko; Scaling and hierarchal structure of cohesive agglomerates of nanoparticles, by L.M. Keer, F.M. Borodich and B. Shah; Size-dependent bending of thin metallic films, by H.X. Zhu and B.L. Karihaloo; Appendix: The Scientific Programme.

Blurb

This volume constitutes the Proceedings of the IUTAM Symposium on 'Scaling in Solid Mechanics', held in Cardiff from 25th to 29th June 2007, to address topical issues in theoretical, experimental and computational aspects of scaling approaches to solid mechanics and related fields.  Scaling is a rapidly expanding area of research which has multidisciplinary applications. The expertise represented at the Symposium was accordingly very wide, and many of the world's greatest authorities in their respective fields participated.

Scaling methods apply wherever there is similarity across many scales or a need to bridge different scales, e.g. the nanoscale and macroscale. The emphasis at the Symposium was on fundamental issues such as mathematical foundations of scaling methods based on transformations and connections between multi-scale approaches and transformations. The Symposium remained focussed on fundamental research issues of practical significance. The topics considered included damage accumulation, growth of fatigue cracks, development of patterns of flaws in the earth's core and in ice, abrasiveness of rough surfaces, and so on.  The Symposium showed that scaling methods cannot be reduced solely to dimensional analysis and fractal approaches. Modern scaling approaches consist of a great diversity of techniques.

These proceedings contain lectures on state-of-the-art developments in self-similar solutions, fractal models, models involving interplay between different scales, size effects in fracture of solids and bundles of fibres, scaling in problems of fracture mechanics, nanomechanics, contact mechanics and testing of materials by indentation, scaling issues in mechanics of agglomeration of adhesive particles, and in biomimetic of adhesive contact.