IUTAM Symposium on Micromechanics of Plasticity and Damage of Multiphase Materials : Proceedings of the IUTAM Symposium Held in Sèvres, Paris, France, 29 August – 1 September 1995

The IUT AM Symposium on "Micromechanics of Plasticity and Damage of Multiphase Materials" was held in Sevres, Paris, France, 29 August - 1 September 1995. The Symposium was attended by 83 persons from 18 countries. In addition 17 young French students attended the meeting. During the 4 day meeting, a total of 55 papers were presented, including 24 papers in the poster sessions. The meeting was divided into 7 oral and 3 poster sessions. The 7 oral sessions were the following: - Plasticity and Viscoplasticity I and II; - Phase transformations; - Damage I and II; - Statistical and geometrical aspects; - Cracks and interfaces. Each poster session was introduced by a Rapporteur, as follows: - Session I (Plasticity and Viscoplasticity): G. Cailletaud; - Session 2 (Damage): D. Franc;:ois; - Session 3 (Phase transformation; statistical and geometrical aspects): D. Jeulin. The main purpose of the Symposium was the discussion of the state of the art in the development of micromechanical models used to predict the macroscopic mechanical behaviour of mUltiphase solid materials. These materials consist of at least two chemically different phases, present either initially or formed during plastic deformation, when a strain-induced phase transformation takes place. One session was devoted to the latter case. Continuously strengthened composite materials, containing long fibers, were out of the scope of the Symposium. Front Matter....Pages i-xviii Front Matter....Pages 1-1 On Non-Local Flow Theories that Preserve the Classical Structure of Incremental Boundary Value Problems....Pages 3-9 On Strain-Rate Sensitivity of Metal Matrices Reinforced with Ceramic Particles....Pages 11-18 Influence of the Micro-Arrangement on Matrix and Fiber Damage in Continuously Reinforced MMCS....Pages 19-26 Morphological Effects at the Local Scale in two-Phase Materials....Pages 27-34 Modeling of the Overall Elastoplastic Behavior of Multiphase Materials by the Effective Field Method....Pages 35-42 Pseudoplasticity of Fibrous Composite Materials: Inelastic Response of Laminates with Interfacial Decohesion....Pages 43-50 Modelling the Cyclic Behaviour of Two-Phase Single Crystal Nickel-Base Superalloys....Pages 51-58 Experimental Evidences of Thermo-Elasto-Plastic Strain Incompatibilities in Microheterogeneous Metal Based Materials....Pages 59-66 A Critical Evaluation for Various Nonlinear Extensions of the Self-Consistent Model....Pages 67-74 Creep and Yield Behaviour of Semi-Crystalline Polyethylene in Uniaxial Tension....Pages 75-82 Finite-Element Simulation of Elastoplastic Properties of Two-Phase Composites Reinforced by Particles....Pages 83-90 Constitutive Equations of Plastic Anisotropic Composite Medium....Pages 91-98 Mechanical Behaviour of Multiphase Materials. Numerical Simulations and Experimental Comparisons....Pages 99-106 The Mechanical Instability of the Metal Substructure in Thermodynamically Stable and Unstable Phases....Pages 107-114 On the Micromechanics of the Deformation of Monocrystalline Nickel-Base Superalloys....Pages 115-122 Self-Consistent Modelling of Elastic-Viscoplastic Multiphase Materials....Pages 123-130 Micromechanics of Localized Fracture in Inelastic Solids under Dynamic Loading Processes....Pages 131-140 A Micro—Macro Structural Approach of the Cyclic Behaviour of a Two—Phase Alloy....Pages 141-148 Overall Properties of Nonlinear Composites....Pages 149-156 Front Matter....Pages 157-157 Statistical Modelling of Damaging Duplex Stainless Steels....Pages 159-166 Front Matter....Pages 157-157 Application of Micro-Mechanical Constitutive Models for Structural Steels....Pages 167-174 Plasticity Modelling of Porous Aluminum....Pages 175-182 Crystallographic Growth of Cavities in Zirconium....Pages 183-190 Integration of Physical Mesomechanisms to Macro-Scopic Modelling : A Coupled Viscoelastic-Viscoplastic Finite Strain Model for a Rubber like Particulate Composite....Pages 191-198 Simulation of the Behaviour of Two Large Scale Tests Using Ductile Damage Mechanics Models Derived from Small Scale Laboratory Data....Pages 199-206 Failure Mode Interaction in Metal-Matrix Composites....Pages 207-214 Constitutive Relations for Porous Materials: The Effect of Changing Void Shape and Orientation....Pages 215-222 Microcrack Nucleation in Different Kinds of Artificial Ice during Uniaxial Compression Creep Experiments....Pages 223-230 Simulation of Co Binder Failure in WC-Co Hardmetals....Pages 231-238 Micromechanical Approach to Modelling of Damage Process in Semi-Brittle Ceramics....Pages 239-246 The Damage Mechanisms in Rubber Toughened PMMA....Pages 247-253 Micromechanics of Plasticity and Damage in an AL/SIC Metal Matrix Composite....Pages 255-262 Damage in Aged Austenoferritic Alloys....Pages 263-270 The Influence of Particulate Spatial Distribution on Damage Accumulation in Metals and Ceramics....Pages 271-278 Transition from Ductile Tearing to Cleavage Fracture — a Statistical Model....Pages 279-286 Front Matter....Pages 287-287 Micromechanical Approach by Finite Elements to the Microstructural Evolutions and Mechanical Behaviour of two Phase Metallic Alloys....Pages 289-296 Incremental Micromechanical Modelling of the Transformation Induced Plasticity....Pages 297-304 Multiscale Treatment of the Martensitic Transformation in a Single Crystal....Pages 305-312 Some Relations for Finite Inelastic Deformation of Microheterogeneous Materials with Moving Discontinuity Surfaces....Pages 313-320 A Micromechanical Study on Strain-Induced Transformation Plasticity in Low-Alloy Trip-Steels....Pages 321-328 Front Matter....Pages 287-287 Computer Simulation of Dislocation Structure Evolution and Microdeformation Effects During α → β Transformation in Palladium-Hydrogen System....Pages 329-336 Front Matter....Pages 337-337 Fractal Concepts for Solid Mechanics....Pages 339-346 Microstructural Inhomogeneity and the Strength of Particulate Metal Matrix Composites....Pages 347-354 The Contact and Sliding Friction of Cellular Materials....Pages 355-362 Statistical Theory of Microplasticity of Two-Phase Composites....Pages 363-370 Reinforcement Fracture and Ductility in Sphere-Reinforced Al-Matrix Composites....Pages 371-378 Towards Scale-Dependent Constitutive Laws for Plasticity and Fracture of Random Heterogeneous Materials....Pages 379-386 Front Matter....Pages 387-387 Microdamage Observations in Dynamically Fractured Ti-10V-2Fe-3Al Microstructures and Preliminary Modeling Attempts....Pages 389-396 Behaviour Analysis of Pre-Fatigue Damaged Aluminum Alloys Under High-Velocity and Quasi-Static Tension....Pages 397-404 Interface Plasticity and Micro-Crack Extension in an Inclusion Reinforced Solid....Pages 405-412 Near Surface Cracks in Transformation Toughened Ceramics Subjected to Hertzian Contact Load....Pages 413-420 Back Matter....Pages 421-430 This volume contains 51 contributions presented at the IUTAM Symposium on Micromechanics of Plasticity and Damage of Multiphase Materials. The Symposium aimed at improving the prediction of the macroscopic behaviour of multiphase solid materials from their microstructure. After review and revision, the papers have been grouped together under five headings, namely Plasticity and viscoplasticity, Damage, Phase transformations, Statistical and geometrical aspects, and Cracks and interfaces. The contributions emphasized the importance of local phenomena and of the spatial phase distribution, as well as the importance of an adequate treatment of the nonlinear character of the overall response. The book is an illustration of the cross-fertilizing effects of mechanics and materials science when investigating the mechanical properties of a variety of materials: metals, ceramics, polymers and composites. It will be of interest and assistance both to academic researchers and to engineers concerned with the use of advanced materials in structural applications.