IUTAM Symposium on Theoretical, Computational and Modelling Aspects of Inelastic Media: Proceedings of the IUTAM Symposium held at Cape Town, South Africa, January 14-18, 2008

ISBN-13: 9789048180684 / Angielski / Miękka / 2010 / 388 str.

B. Daya Reddy

Opis

Inelastic media constitute a rich source of interesting and important problems in theoretical, experimental and computationalmechanics. Signi?cantinsightshavebeengainedthroughstudiesofthemathematicalchar- teristics of new models. New constitutive theories have lead to variational and other formulations that are generally more complex, often highly nonlinear, and requ- ing new tools for their successful resolution. Likewise, there have been signi?cant advances of a computational nature, coupled to the development of new algorithms for solving such problems in discrete form. It is clear, therefore, that research in the broad area of inelastic media offers c- temporary investigators a range of challenges which are most fruitfully addressed througha combinationof theoretical, experimentaland computationalavenues.F- thermore, the ?eld is truly multidisciplinary in nature, drawing on the expertise of specialists in materials science, various branches of engineering, mathematics, and physics, and bene?ting from integrative approaches to the solution of problems. The objective of the IUTAM Symposium on Theoretical, Modelling and C- putational Aspects of Inelastic Media, held in Cape Town over the period 14 18 January 2008, was to provide a forum in which experts engaged in a spectrum of activities underthe theme of inelastic media could discussrecent developments, and also identify key open problems."

Spis treści

Preface; List of Committee Members and Sponsors; List of Participants; Multiscale Modeling and Simulation of Microstructure On Computational Procedures for Multi-Scale Finite Element Analysis of Inelastic Solids, by D. Perik, D.D. Somel; E.A. de Souza Net and WG. Dettmer; Material Characterization Based on Microstructural Computations and Homogenization, by P. Wriggers and M. Hain; Relaxed Potentials and Evolution Equations for Inelastic Microstructures, by K. Hack1 and D.M. Kochmann; Towards Effective Simulation of Effective Elastoplastic Evolution, by C. Carstensen and R. Huth; Numerical Approximation Techniques for Rate-Independent Inelasticity, by A. Mielke; Damage and Fracture: A Computational Methodology for Modeling Ductile Fracture, by A.A. Benzerga; Multiscale Methods for Fracturing Solids, by S. Loehnert and D.S. Mueller-Hoeppe; A Regularized Brittle Damage Model Solved by a Level Set Technique, by N. Mob, N. Chevaugeon and E. Dufour; Gradient and Other Non-Local Theories; A Counterpoint to Cermelli and Gurtin's Criteria for Choosing the 'Correct' Geometric Dislocation Tensor in Finite Plasticity, by A. Acharya; On Stability for Elastoplasticity of Integral-Type, by E. Marotti de Sciarra; On the Mathematical Formulations of a Model of Strain Gradient Plasticity, by E. Ebobisse, A.T. McBride and B.D. Reddy; Uniqueness of Strong Solutions in Infinitesimal Perfect Gradient-Plasticity with Plastic Spin, by T. Neff; Algorithms and Computational Aspects: SQP Methods for Incremental Plasticity with Kinematic Hardening, by C. Wieners; Simulation of Forming Processes Using Overlapping Domain Decomposition and Inexact Newton Methods, by S. Brunssen, C. Hagel, F. Schmid and B. Wohlmuth; Variational Formulation of the Cam-Clay Model, by M. Hjiaj and G. de Saxce; Anisotropic Modelling of Metals in Forming Processes, by S. Reese and I.N. Vladimirov; Inelastic Media under Uncertainty: Stochastic Models and Computational Approaches, by H.G. Matthies and B.K. Rosic; Automated Computational Modelling for Solid Mechanics, by K.B. Qlgaard, G.N. Wells and A. Logg; Generalised Functions for Modelling Singularities: Direct and Inverse Problems, by S. Caddemi and I. Calif; Discontinuous Galerkin Methods : A Discontinuous Galerkin Method for an Incompatibility-Based Strain Gradient Plasticity Theory, by J. Ostien and K. Garikipati; Some Applications of Discontinuous Galerkin Methods in Solid Mechanics, by A. Lew, A. Ten Eyck and R. Rangarajan; Some Aspects of a Discontinuous Galerkin Formulation for Gradient Plasticity at Finite Strains, by A. McBride and B.D. Reddy; Computational Dynamics: Energy-Momentum Algorithms for the Nonlinear Dynamics of Elastoplastic Solids, by R Armero; Internal Variable Formulations of Problems in Elastoplastic Dynamics, by M.A. E. Kaunda; Time-FE Methods for the Nonlinear Dynamics of Constrained Inelastic Systems, by R. Mohl; S. Uhlar, A. Menzel and I. Steinmann; The Potential for SPH Modelling of Solid Deformation and Fracture, by I W Cleary and R. Das; Effect of Material Parameters in the Izod Test for Polymers, by K Tvergaard and A. Needleman; Experimental and Computational Aspects: The Response of 'Large' Square Tubes (Width Thickness Ratio > 45) to Opposite Lateral Blast Loads Followed by Dynamic Axial Load; S. Chung Kim Yuen and G.N. Nurick; Modelling the Behaviour of Fibre-Metal Laminates Subjected to Localised Blast Loading, by D. Karagiozova, G.S. Langdon and G.N. Nurick; On the Measurement and Evaluation of the Width of Portevin-Le Chatelier Deformation Bands with Application to AA5083-HI16 Aluminium Alloy, by A. Benallal, T. Berstad, T. Blrvik, O. Hopperstad and R. Nogueira de Codes; Shakedown and Limit Analysis Direct Evaluation of Limits in Plasticity and Creep Deformation, by A. R.S. Ponter; On Recent Progress in Shakedown Analysis and Applications to Large-Scale Problems, by D. Weichert, A. Hachemi, S. Mouhtamid and A.D. Nguyen; Viscoelasticity Local and Global Regularity in Time Dependent V

Blurb

This work comprises papers based on some of the talks presented at the IUTAM Symposium of the same name, held in Cape Town, January 14-18, 2008.

This volume treats cutting-edge issues in modelling, the behaviour of various classes of inelastic media, and associated algorithms for carrying out computational simulations. A key feature of the contributions are works directed at modelling behaviour at the meso and micro-scales, and at bridging the micro-macro scales.