Inelastic Deformation of Composite Materials: Iutam Symposium, Troy, New York, May 29 - June 1, 1990

ISBN-13: 9781461391111 / Angielski / Miękka / 2011 / 779 str.

George J. Dvorak

Opis

Polymer composites were introduced for the aerospace industry as light, strong, stiff materials, and adopted by the construction and automobile industries, among others. Meanwhile, composite materials have been introduced to fulfill the uses that these conventional materials could not, such as in extreme environments. The research for new composites includes not only new polymer systems, but metals, ceramics and intermetallic systems as well. This volume contains a selection of recent work by leading researchers in micromechanics on the topics of prediction of overall properties of elastic, perfectly bonded systems, problems associated with inelastic deformation of the phase, debonding at interfaces and growth of distributed damage. Many familiar aspects of mechanical behavior, such as fatigue, fracture, strength and buckling, etc. have been reexamined and adapted for these new systems.

Spis treści

Session 1. Interfaces I.- Composite Materials with Interphase: Thermoelastic and Inelastic Effects.- Effect of a Viscoelastic Interfacial Zone on the Mechanical Behavior and Failure of Fiber-Reinforced Composites.- Measurement of Strength of Thin Film Interfaces by Laser Spallation Experiment.- Session 2. Interfaces II.- On a Correspondence Between Mechanical and Thermal Fields in Composites with Slipping Interfaces.- Micromechanical Modelling of Fibre Debonding in a Metal Reinforced by Short Fibres.- Session 3. Damage.- Fiber Stress Enhancement Due to Initial Matrix Cracking.- Fracture Toughness Enhancement Due to Particle Transformation.- Cracks at the Extremities of Cylindrical Fibre Inclusions.- Session 4. Inelastic Behavior I.- Bounds for the Creep Behavior of Poly crystalline Materials.- Simplifications in the Behavior of Viscoelastic Composites with Growing Damage.- The Effective Properties of Brittle/Ductile Incompressible Composites.- Session 5. Inelastic Behavior II.- Compressive Failure of Fibre Composites Due to Microbuckling.- A Critical Evaluation for a Class of Micro-Mechanics Models.- Experiments and Modeling in Plasticity of Fibrous Composites.- Session 6. Computational Methods.- The Effect of Superposed Hydrostatic Stress on the Mechanical Response of Metal-Matrix Composites.- Micromechanical Modeling of Plasticity Texture Evolution in Semi-Crystalline Polymers.- A Unified Formulation of Micromechanics Models of Fiber-Reinforced Composites.- Session 7. Inelastic Behavior III.- A Micromechanical Composite Yield Model Accounting for Residual Stresses.- The Effects of Thermal, Plastic and Elastic Stress Concentrations on the Overall Behavior of Metal Matrix Composites.- Session 8. Inelastic Behavior IV.- Residual Stresses in Fibrous Metal Matrix Composites: A Thermoviscoplastic Analysis.- Elasto-Plastic Analysis for Cracked Fibrous Composites under Axial and Thermal Loads.- Incremental Elastoplastic Behavior of Metal Matrix Composites Based on Averaging Schemes.- Session 9. Inelastic Behavior V.- Global and Internal Time Dependent Behaviour of Polymer Matrix Composites.- A Local-Field Theory for the Overall Creep of Fiber-Reinforced Metal Matrix Composites.- The Overall Behaviour of a Nonlinear Fibre Reinforced Composite.- Session 10. Damage and Failure.- A Continuum Model for Damage Evolution in Laminated Composites.- Lower and Upper Bound Estimates for the Macroscopic Strength Criterion of Fiber Composite Materials.- Static and Fatigue Biaxial Testing of Fiber Composites Using Thin Walled Tubular Specimens.- Session 11. Fracture.- Mesomodeling of Damage for Laminate Composites: Application to Delamination.- Constitutive Relations of Hybrid Fiber Reinforced Plastics of GFRP/CFRP and GFRP/AFRP under Combined Stress State.- Predictions of the Critical Strain for Matrix Cracking of Ceramic Matrix Composites.- Session 12. Inelastic Behavior VI.- Shear Characterisation and Inelastic Torsion of Fibre-Reinforced Materials.- Inelastic Deformation and Fatigue Damage of Composites under Multiaxial Loading.- A Hybrid Model for Nonlinear Characterization of Composite Materials.- Session 13. Inelastic Behavior VII.- Admissible Deformations in Diaphragm Forming of Continuous Fibre Reinforced Thermoplastics.- Viscoelastic Creep Post Buckling Behavior of AS4/J1 Thermoplastic-Matrix Composite Laminates.- Asymmetrical Growth of Edge Delaminations in CFRP Tensile Specimens.- Matrix Mean-Field and Local-Field Approaches in the Analysis of Metal Matrix Composites.