Iutam Symposium On Micro- And Macrostructural Aspects Of Thermoplasticity
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This volume contains contributions presented at the IUTAM Symposium on Micro- and Macrostructural Aspects of Thermoplasticity. The symposium brought together 87 eminent scientists from 13 countries working in the field of thermoplasticity with the aim of exchanging ideas and stimulating interaction. The majority of the lectures covered the main theme of the symposium, with a few of a more general keynote nature and a memorial lecture devoted to the work of Th. Lehmann. This volume begins by presenting basic questions of material modelling. Problems encountered in polycrystalline materials are also discussed and the transition from the micro- to the macroscale is the subject of several papers. The special handling of shape memory materials, phase transformation, and damage is emphasized. A couple of papers are devoted to experimental results and the various aspects of numerical treatment. It has become clear that previously cited problems, though approached from different viewpoints, may often be handled similarly. Moreover, the processing of special cases sensitized for a more accurate treatment in details. The volume will be of interest to researchers in the field of thermoplasticity. Booknews This volume contains 47 contributions presented at the August 1997 symposium. The contributors discuss basic questions of material modeling, problems encountered in polycrystalline materials, and the transition from the micro- to the macroscale. The special handling of shape memory materials, phase transformations, and damage is emphasized. A couple of papers are devoted to experimental results and the various aspects of numerical treatment. The editors conclude that previously cited problems, though faced from different view points, may often be handled similarly, and that the processing of special cases sensitizes for a more accurate treatment in details. Sample paper topics are the temperature effect on viscoplastic constitutive spins, anisotropic plastic flows, the texture development of aluminum polycrystals under finite plastic deformations, and a new type of thermal ratcheting. No subject index. Annotation c. by Book News, Inc., Portland, Or.
PrefaceSponsorsIn Memoriam J. Th. LehmannList of ParticipantsSession ProgramOn the Thermomechanical Modelling of Inelastic Material Behaviour (Keynote Lecture)3On the Behaviour of Some Thermo-Elastoplastic Models in Finite Strains15A Formulation of Finite Strain Thermo-Viscoplasticity Based on Unified Models25The Temperature Effect on Viscoplastic Constitutive Spins35Macro- and Microconcepts of Anisotropic Finite Elastoplasticity45Modelling the Microstructural Evolution during Large Plastic Deformations (Keynote Lecture)55On Anisotropic Plastic Flow69Finite Element Simulation of Local Plastic Flow in Polycrystals79Micromechanical Modelling of Creeping Polycrystals89Experimentally-Based Micromechanical Modeling of Metal Plasticity with Homogenization from Micro- to Macro-Scale Properties (Keynote Lecture)101Micromechanics of Moving Inelastic Discontinuities and Applications (Keynote Lecture)115Texture Development of Aluminum Polycrystals under Finite Plastic Deformations127Computational Micro-Macro-Transitions in Thermoplastic Analysis at Finite Strains137Adaptive Simulation Concepts for the Transition from Micro- to Macro-Damage in Elastoplasticity147Micro- and Macromechanical Modeling of Inelastic Brittle Materials under Compression157Temperature Effects on Crack Tip Plasticity in Polymers167Integral Formulation and Self-Consistent Modelling of Elastoviscoplastic Heterogeneous Materials177A Homogenization Theory for Inelastic Behavior of Materials with Periodic Internal Structures187Physical Meaning and Experimental Check of a Variational Principle for Macro-to-Micro Transition197New Self-Consistent Estimates for the Effective Behavior of Some Model Nonlinear Polycrystals207On the Micro-Macro Transition and Hardening Moduli in Plasticity (Keynote Lecture)219On Mathematical Modeling of the Material Structure Changes in the Plastic Localization Bands231Length Scale Effects in Gradient Viscoplasticity241On the Analysis of Adiabatic Strong Discontinuities within Thermoplastic Solids251Adaptive Mesh Refinement for Phase-Change Effects Capturing in Thermoplasticity261On Liquid-Saturated and Empty Granular Elasto-Plastic Solid Materials Accounting for Micropolar Rotations271A Non-Incremental and Adaptive Computational Approach in Thermo-Viscoplasticity281Unified Constitutive Equations for Phase Transformation and Thermoplasticity (Keynote Lecture)295Phase Transitions in Dissipative Materials: Theory and Interpretation of Experiments (Keynote Lecture)307Shape Deforming Phase Transition in Solids: Energetics and Pseudoelasticity319Temperature- and Microstructure Dependence of Mechanical Properties of B2-Structure Based Shape-Memory Alloys325Analysis of the Role of the Stress on Martensitic Transformation in Ferrous Alloys Considering Numerical Modelling and Experimental Results335Mesomechanical Modelling of the Constitutive Behaviour of a Material during a Martensitic Transformation345Micro- and Macrostructural Aspects of Plastic Deformation of Metastable Steels355Micro- and Macroplasticity in Two Phase Alloys Undergoing Martensitic Transformation363Computational Methods for Elastoplastic Materials with Martensitic Phase Transition373A Set of Constitutive Equations of Polycrystalline Shape Memory Alloy under Multi-axial Loading Conditions383Deformation of Adaptive Materials (Keynote Lecture)395Some Recent Advances in Experimental Study of Shape Memory Alloys407Computer Simulation of Plastic Deformation of Inhomogeneous Material with Elliptic Inclusions Sliding Along Boundaries417On the Layered Medium with Elastic and Shape Memory Alloy Plies Under Various Loading Rates427Infrared Thermography of Macrostructural Aspects of Thermoplasticity437Dynamic Indentation Hardness of Metals447A Model for Grains Junction in Polycrystalline Material and Effect of Temperature Changes on Related Phenomena457Mechanism and Evaluation of a New Type of Thermal Ratchetting469Deformation Characteristics of Several Types of Steel in Cyclic Plasticity and their Modelling479Thermoplastic Deformation at Interfaces in Metal Forming Processes489Author Index499
