Low Cycle Fatigue and Elasto-Plastic Behaviour of Materials: Volume 2

ISBN-13: 9789401080491 / Angielski / Miękka / 2011 / 750 str.

K. T. Rie

Opis

In 1979 the first InternationalSymposium on Low CycleFatigue and Elasto-Plastic Behaviour of Materials was held in Stuttgart, FRG. Since then research in low cycle fatigue has proceeded rapidly. The vital interest of engineers and researchers in communicating the rapid advances in the ongoing research in low cycle fatigue has encouraged me to initiate again the Second International Conference which was held in Munich, FRG, 7-11 September 1987. Failure in low cycle fatigue represents a serious problem in the design and opera tion of highly stressed structures. Under complex loading and environmental cir cumstances, especially for high temperature services, reliable life prediction can not be expected without detailed consideration of the failure mechanism and with out extensive use of mechanistic approaches. The purpose of this conference was to provide a forum to discuss the advances in recent research in the field of low cycle fatigue. The conference was intended to help to further bridge the gap between those who are involved in basic research, and the engineers who have to perform the design of highly stressed structural components.

Spis treści

Invited Paper on Special Topics.- Damage Monitoring, Life Prediction and Life Extension.- Review Paper.- A Review of Recent Studies of Low Cycle Fatigue in Japan.- Section 1 : Correlation between Microstructure and Cyclic Behaviour.- Correlation between Microstructure and Cyclic Behaviour.- The Influence of Crystal Orientation on Fatigue Softening of Predeformed Copper.- Cyclic Stress in Polycrystalline Copper.- The Formation of Ribbon-like Extrusions and Intrusions during the Cyclic Deformation of Copper.- Cumulative Damage under Constant Amplitude and Variable Amplitude Loading: Some New Physical Aspects.- Inhomogeneous Cyclic Deformation Behavior of Polycrystalline Aluminum.- Crack Initiation by Low Cycle Fatigue of Al-Mg-Si Alloys.- The Role of Grain Boundaries in Low Cycle Fatigue at High Temperatures.- Cyclic Deformation and Microstructure of Zircaloy-4 between 300 and 973 K.- Effect of Nitrogen upon the Low-Cycle Fatigue Behaviour of 316 L Stainless Steels.- Relationships between Fatigue Strength and Microstructure of 55SiMnVB Steel.- Low Cycle Fatigue of a 12 Cr Martensitic Stainless Steel: The Role of Microstructure.- Surface Bifurcation and Surface Roughening of Inhomogeneous Material during Plastic Deformation.- Fatigue Crack Initiation and Early Propagation in Polycrystalline Copper.- Low-Cycle Fatigue Investigations on Al-Mg-Si-1 Alloys of Different Grain Sizes.- Dislocation Structure Changes in Ferritic-Pearlitic Steels Caused by Low-Cycle Fatigue at Elevated Temperature.- Predictive Analysis of Low Cycle Fatigue of Tool Steel in Warm Working Conditions.- Low Cycle Fatigue of Medium Strength Al-Mg Alloy.- Section 2: Modelling of Cyclic Stress-Strain Response, Constitutive Equations.- The Viscoplasticity Theory Based on Overstress Applied to Ratcheting and Cyclic Hardening.- A Critical Evaluation of the Incremental Step Test.- An Analysis of Stress-Strain Hysteresis Loop and Cyclic Stress-Strain Curve in Structural Steels.- A Cyclic Constitutive Relation for Multiaxial Stress States.- A Stochastic Model for the Interaction of Plasticity and Creep in Metals.- Critical Experiments in Thermo-mechanical Loading.- Modeling Cyclic Deformation with the MATMOD-BSSOL Unified Constitutive Equations.- Modelization of Cyclic Stress-Strain Response of Hot Working Tools.- Application of the Internal Stress Concept to LCF Deformation at High Temperature.- Low Cycle Fatigue (LCF): Modelled by Elastic-Plastic Trusses with Kinematical Hardening.- Section 3: LCF at High Temperature.- Substance of Creep-Fatigue Interaction Examined from the Point of View of a Crack Propagation Mechanics.- Lifetime Prediction under Creep-Fatigue Conditions.- Low-Cycle Fatigue Life Prediction in Terms of Hysteresis Energy under Creep-Fatigue Interaction.- Life Prediction under Creep-Fatigue Condition for 1Cr-Mo-V Steel.- Influence of Microstructure of 1% CrMoV Steel on Creep and Strain Controlled Fatigue Behaviour.- Influence of Hold-Time and Strain Rate on the LCF Behaviour of Alloy 617 at 950°C.- On the Behavior of Ferritic Steels Subjected to Load Controlled Cycling at Elevated Temperatures.- The Construction of Creep-Fatigue Design Curves Based on a Strain-Fraction Approach.- Creep-Fatigue Behavior of 2 1/4 Cr-1Mo Steel in Air and Vacuum.- Damage Mechanisms under Creep Fatigue Conditions in Alloy 800H.- Creep Fatigue of Steels in Various Environments.- Low Cycle Fatigue Experiments with Variation of the Strain Range.- Low Cycle Fatigue Behaviour of Nimonic PE 16 at Temperature up to 650°C.- The Creep/Fatigue Behaviour of 17Cr8Ni2Mo Weld Metal at 625°C.- Regularities of Resistance to Breaking and Definition of Design Characteristics at Low-Cycle Isothermic and Non-isothermic Loading.- Prediction of Crack Growth in High Temperature Components Using Creep Crack Growth and Fatigue Crack Growth Data.- The Thermal Fatigue Life Prediction of Diesel Engine Heating Components by the Strain-Range Partitioning Method.- An Automated Material Testing System for Evaluating the Effects of Thermal Mechanical Fatigue on Material Properties.- Investigations on Elasto-Plastic Behaviour of the Boiler Steel Mb 16 at High Temperatures.- Section 4: LCF Behaviour under Various Environmental Conditions.- Mechanics of Materials in Corrosion Assisted Low Cycle Fatigue Crack Growth Analyses.- Low Cycle Corrosion Fatigue of High Tensile Strength Steel and Image Processing of Fracture Surfaces.- Low Cycle Corrosion Fatigue of Turbine Steels in Boiler Feed Water.- Evolution of Microcracks during Low Cycle Fatigue in Aqueous Corrosive Solutions.- Environmental Effects on LCF Failure of Unidirectionally Solidified MAR-M200 + HF Alloy at 975°C.- Environmental Effects on the Fatigue Behaviour of Alloy 800H.- Investigations on the Interaction of LCF and Oxidation.- Low-Cycle Fatigue of Stainless Steel in Liquid Sodium Environment.- Fatigue Crack Growth of a Low Alloy Steel in Various Gaseous Environments.- High Temperature Low Cycle Fatigue in Coal Gasification Environment.- Effect of High Pressure Oxidation on Mechanical Properties of Modified 9Cr-1Mo Ferritic Steel at Various Temperatures.- Section 5: Realization and Operation of Industrial Components, Welded Structures.- Advanced Designing with High Temperature Materials.- LCF Stresses—An Important Criterion in the Design of Steam Turbines for Fossil-Fired Power Stations.- Crack Nucleation and Propagation in Nozzles of a Pressure Vessel.- Elasto-Plastic Fatigue for In-Plane Bending on Elbow.- Low Cycle Fatigue of Reinforced Concrete Beams in Bending.- Thermal Fatigue Behaviour of Dissimilar-Metal Welds.- Possibilities to Increase Welded Joint Life at Low Cycle Fatigue.- Characterization of the Cyclic Material Properties of Shape Welded Tempered and Quenched Steels 10 MnMoNi 5 5 and 20 NiCrMoV 14 5.- Low Cycle Fatigue Strength of Mechanically Heterogeneous Welded Joints.- A Welded Joint Microstructure Effect on Low-Cycle Fatigue.- Growth of Fatigue Cracks from Weld Defects at Low-Cycle Fatigue.- Section 6: Design Methods, Life Prediction, Multiaxial Loading.- Multiaxial Fatigue Damage Assessment.- Effects of Notch-Tip Stress-Strain Calculation Method on the Prediction of Fatigue Crack Initiation Life.- The Relative Method in the Case of Local Strain Approach.- A New Concept for Plastic Strain Concentration Factors.- Local Strain Approach in Multiaxial Fatigue: Feasibilities and Current Limitations.- Advanced FEM-Based Fatigue Analysis (FEMFAT) for Arbitrary Multiaxial Elastic Plastic Loading Conditions.- Multiaxial Fatigue Behaviour of Cyclic Hardening and Softening Steels under Variable Elastic-Plastic Strain Amplitudes.- Determination of Cycle Dependent Material Properties for a Design Concept on the Basis of Limited Plastic Strains with Regard to Environmental Effects.- Low Cycle Fatigue on a 1CrMoV Steel: Damage Criteria and Life Prediction Methods Assessment.- Life Evaluation of a Nozzle Charged by Low Primary Loads and Severe Cyclic Thermal Shocks.- Inelastic Stress-Strain Behaviour of Cyclic Loaded Notched Specimens.- Comparison between Rotating Bending and Push-Pull Fatigue Strength in Low Cycle Region.- Effects of Mixed Mode and Mode II Overloads on Mode I Fatigue Crack Growth.- Local Stresses and Strains in Weldments as a Basis of the Proof of Fatigue Strength.- Section 7: Fracture Mechanics Aspect of Crack Initiation and Crack Propagation.- Low Cycle Fatigue Life — An Analysis Based on Fatigue Crack Growth Behavior under General-Yielding Cyclic-Loading.- Crack Initiation Life Predictions Based on Elastic-Plastic Fracture Mechanics of Short Cracks.- Fatigue Crack Growth and Closure at High Cyclic Strains.- Note on the Crack Closure Phenomenon in Low-Cycle Fatigue.- Microcrack Growth Law-Aided Approach in Evaluating Low-Cycle Fatigue Strength and its Application — Directionality Assessment of Thick Forged Steel Plates (A533B Cl 1) and Prediction of the Microcrack Propagation Life of a Medium Carbon Steel under Variable Strain Amplitudes.- On the Material Plasticity Attending Fatigue Crack Growth.- Fatigue Crack Growth under Mode I and II Loading.- The Influence of Minor Cycles on Low Cycle Fatigue Crack Growth in Ti-5331S.- Comparison of Low Cycle Axial, Rotating and Bending Fatigue of Aluminium Alloys.- Shape Changing and Cracking during High-Temperature Cycling of High-Alloyed Steel Cylinders.- On the Correlation between Life-Time and Crack Growth Laws under HTLCF Loading.- Application of the Fracture Mechanics Concepts to Thermal Fatigue Cracking.- Relationship between Crack Growth of Thermal-Mechanical Fatigue and that of Isothermal Low-Cycle Fatigue at Elevated Temperatures.- Retarding the Crack Initiation Process during Low Cycle Thermal Shock Fatigue.- Crack Mode Transition and Failure Life Assessment in High Temperature Biaxial Low Cycle Fatigue.- High Temperature Creep and Fatigue Crack Growth in Alloy 800H.- Micromechanics Basis of CTD Criterion for Short Crack Propagation in Crystalline Grains.- A Definition of Fatigue Small Crack Range.- Experience with a Load Change Technique for Crack Growth Rate Measurements.- Fracture Mode Transition and Damage in Extremely Low Cycle Fatigue.- The Effects of Environment on Stage I/II Fatigue Cracks in Al-Zn-Mg Single Crystals.- Low Cycle Fatigue of Martensitic AISI 4140 Steel at Low Temperatures.- Effect of Low-Cycle Fatigue on the Brittle Characteristics of a Structural Steel.- Impact Tensile Properties of a Stainless Steel Pre-fatigued in Low Cycle Regime.- Section 8: New Materials, Materials Development.- Effect of Heat Treatment on the Behaviour of WC-Co Cemented Carbide Alloy under Repeated Impact Loading.- The Effect of Small Amount of Magnesium on High Temperature LCF Behaviour in Iron-Base and Nickel-Base Superalloys.- Fatigue Crack Propagation in Centrally Notched Composites.- High Temperature LCF of an Oxide Dispersion Strengthened Nickel Base Super alloy.- Cyclic Response of Dual-Phase Steels.- Contributing Authors Index.