During the last decades modelling of inelastic structural behaviour has achieved great attention. Wherever elastic designhas reached its limita sa consequence of increased loading, the related cons titutive rela tions meanwhile have become part of the engineer s practice. However, new materials with complex behaviour, further increasing loads at higher temperatures, as well as the implementation of stronger security demands have led to theconsequence that the preferentially used phenomenological concepts need to be verified and improved continuously. Caused by the a priori non linear character…mehr
During the last decades modelling of inelastic structural behaviour has achieved great attention. Wherever elastic designhas reached its limita sa consequence of increased loading, the related cons titutive rela tions meanwhile have become part of the engineer s practice. However, new materials with complex behaviour, further increasing loads at higher temperatures, as well as the implementation of stronger security demands have led to theconsequence that the preferentially used phenomenological concepts need to be verified and improved continuously. Caused by the a priori non linear character oft he material rela tions, all equations fort he description of every new phenomenon need to be reconsidered. According to this, since about a decade the idea succeeds that constitutive relations which represent material behaviour more re alistically can not only be deduced phe nomenologicallyfrom the laws of continuum mechanics. Sincet he observed behaviour is caused by processes taking place on the microscale, these processes and mechanisms need to be taken into consideration when determining the constitutive relations. The formulation of proper micro macro relations actu ally is one of the main emphases in thermoplasticity in the international research. The intentiono ft he IUTAM Symposium on Micro and Macrostructural Aspects of Thermoplasticity , held at the Ruhr University of Bochum, Germany, from August 25 to 29, 1997, wast o bring together eminent scientistsworking i n different fields of thermoplasticity with the aim thatt hey may exchange their ideas and activate this interaction.Hinweis: Dieser Artikel kann nur an eine deutsche Lieferadresse ausgeliefert werden.
Thermoplasticity.- On the Thermomechanical Modelling of Inelastic Material Behaviour.- On the Behaviour of Some Thermo-elastoplastic Models in Finite Strains.- A Formulation of Finite Strain Thermoviscoplasticity Based on Unified Models.- The Temperature Effect on Viscoplastic Constitutive Spins.- Macro- and Microconcepts of Anisotropic Finite Elastoplasticity.- Polycrystalline Materials.- Modelling the Microstructural Evolution During Large Plastic Deformations.- On Anisotropic Plastic Flow.- Finite Element Simulation of Local Plastic Flow in Polycrystals.- Micromechanical Modelling of Creeping Polycrystals.- Micro/Macro Transition.- Experimentally-based Micromechanical Modeling of Metal Plasticity with Homogenization from Micro-to Macro-scale Properties.- Micromechanics of Moving Inelastic Discontinuities and Applications.- Texture Development of Aluminum Polycrystals Under Finite Plastic Deformations.- Computational Micro-macro-transitions in Thermoplastic Analysis at Finite Strains.- Adaptive Simulation Concepts for the Transition from Micro-to Macro-damage in Elastoplasticity.- Micro- and Macromechanical Modeling of Inelastic Brittle Materials under Compression.- Temperature Effects on Crack Tip Plasticity in Polymers.- Integral Formulation and Self-consistent Modelling of Elastoviscoplastic Heterogeneous Materials.- A Homogenization Theory for Inelastic Behavior of Materials with Periodic Internal Structures.- Physical Meaning and Experimental Check of a Variational Principle for Macro-to-micro Transition.- New Self-consistent Estimates for the Effective Behavior of Some Model Nonlinear Polycrystals.- Stability, Localization & Numerical Aspects.- On the Micro-macro Transition and Hardening Moduli in Plasticity.- On Mathematical Modeling of the Material Structure Changes in the Plastic Localization Bands.- Length Scale Effects in Gradient Viscoplasticity.- On the Analysis of Adiabatic Strong Discontinuities within Thermoplastic Solids.- Adaptive Mesh Refinement for Phase-change Effects Capturing in Thermoelasticity.- On Liquid-saturated and Empty Granular Elasto-plastic Solid Materials Accounting for Micropolar Rotations.- A Non-incremental and Adaptive Computational Approach in Thermo-viscoplasticity.- Phase Transformation.- Unified Constitutive Equations for Phase Transformation and Thermoplasticity.- Phase Transitions in Dissipative Materials: Theory and Interpretation of Experiments.- Shape Deforming Phase Transition in Solids.- Temperature- and Microstructure Dependence of Mechanical Properties of B2-structure Based Shape-memory Alloys.- Analysis of the Role of the Stress on Martensitic Transformation in Ferrous Alloys Considering Numerical Modelling and Experimental Results.- Mesomechanical Modelling of the Constitutive Behaviour of a Material During a Martensitic Transformation.- Micro- and Macrostructural Aspects of Plastic Deformation of Metastable Steels.- Micro- and Macroplasticity in two Phase Alloys Undergoing Martensitic Transformation.- Computational Methods for Elastoplastic Materials with Martensitic Phase Transition.- A Set of Constitutive Equations of Polycrystalline Shape Memory Alloy under Multi-axial Loading Conditions.- Heterogeneous Materials, Experiments.- Deformation of Adaptive Materials.- Some Recent Advances in Experimental Study of Shape Memory Alloys.- Computer Simulation of Plastic Deformation of Inhomogeneous Material with Elliptic Inclusions Sliding Along Boundaries.- On the Layered Medium with Elastic and Shape Memory Alloy Plies under Various Loading Rates.- Infrared Thermography of Macrostructural Aspects of Thermoplasticity.- Dynamic Indentation Hardness of Metals.- A Model for Grain Junction in Polycrystalline Material and Effect of Temperature Changes on Related Phenomena.- Different Aspects of Thermoplasticity.- Mechanism and Evaluation of a New Type of Thermal Ratchetting.- Deformation Characteristics of Several Types of Steel in Cyclic Plasticity and Their Modelling.- Thermoplastic Deformation at Interfaces in Metal Forming Processes.
Thermoplasticity.- On the Thermomechanical Modelling of Inelastic Material Behaviour.- On the Behaviour of Some Thermo-elastoplastic Models in Finite Strains.- A Formulation of Finite Strain Thermoviscoplasticity Based on Unified Models.- The Temperature Effect on Viscoplastic Constitutive Spins.- Macro- and Microconcepts of Anisotropic Finite Elastoplasticity.- Polycrystalline Materials.- Modelling the Microstructural Evolution During Large Plastic Deformations.- On Anisotropic Plastic Flow.- Finite Element Simulation of Local Plastic Flow in Polycrystals.- Micromechanical Modelling of Creeping Polycrystals.- Micro/Macro Transition.- Experimentally-based Micromechanical Modeling of Metal Plasticity with Homogenization from Micro-to Macro-scale Properties.- Micromechanics of Moving Inelastic Discontinuities and Applications.- Texture Development of Aluminum Polycrystals Under Finite Plastic Deformations.- Computational Micro-macro-transitions in Thermoplastic Analysis at Finite Strains.- Adaptive Simulation Concepts for the Transition from Micro-to Macro-damage in Elastoplasticity.- Micro- and Macromechanical Modeling of Inelastic Brittle Materials under Compression.- Temperature Effects on Crack Tip Plasticity in Polymers.- Integral Formulation and Self-consistent Modelling of Elastoviscoplastic Heterogeneous Materials.- A Homogenization Theory for Inelastic Behavior of Materials with Periodic Internal Structures.- Physical Meaning and Experimental Check of a Variational Principle for Macro-to-micro Transition.- New Self-consistent Estimates for the Effective Behavior of Some Model Nonlinear Polycrystals.- Stability, Localization & Numerical Aspects.- On the Micro-macro Transition and Hardening Moduli in Plasticity.- On Mathematical Modeling of the Material Structure Changes in the Plastic Localization Bands.- Length Scale Effects in Gradient Viscoplasticity.- On the Analysis of Adiabatic Strong Discontinuities within Thermoplastic Solids.- Adaptive Mesh Refinement for Phase-change Effects Capturing in Thermoelasticity.- On Liquid-saturated and Empty Granular Elasto-plastic Solid Materials Accounting for Micropolar Rotations.- A Non-incremental and Adaptive Computational Approach in Thermo-viscoplasticity.- Phase Transformation.- Unified Constitutive Equations for Phase Transformation and Thermoplasticity.- Phase Transitions in Dissipative Materials: Theory and Interpretation of Experiments.- Shape Deforming Phase Transition in Solids.- Temperature- and Microstructure Dependence of Mechanical Properties of B2-structure Based Shape-memory Alloys.- Analysis of the Role of the Stress on Martensitic Transformation in Ferrous Alloys Considering Numerical Modelling and Experimental Results.- Mesomechanical Modelling of the Constitutive Behaviour of a Material During a Martensitic Transformation.- Micro- and Macrostructural Aspects of Plastic Deformation of Metastable Steels.- Micro- and Macroplasticity in two Phase Alloys Undergoing Martensitic Transformation.- Computational Methods for Elastoplastic Materials with Martensitic Phase Transition.- A Set of Constitutive Equations of Polycrystalline Shape Memory Alloy under Multi-axial Loading Conditions.- Heterogeneous Materials, Experiments.- Deformation of Adaptive Materials.- Some Recent Advances in Experimental Study of Shape Memory Alloys.- Computer Simulation of Plastic Deformation of Inhomogeneous Material with Elliptic Inclusions Sliding Along Boundaries.- On the Layered Medium with Elastic and Shape Memory Alloy Plies under Various Loading Rates.- Infrared Thermography of Macrostructural Aspects of Thermoplasticity.- Dynamic Indentation Hardness of Metals.- A Model for Grain Junction in Polycrystalline Material and Effect of Temperature Changes on Related Phenomena.- Different Aspects of Thermoplasticity.- Mechanism and Evaluation of a New Type of Thermal Ratchetting.- Deformation Characteristics of Several Types of Steel in Cyclic Plasticity and Their Modelling.- Thermoplastic Deformation at Interfaces in Metal Forming Processes.
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