Fracture mechanics of ductile and tough materials and its applications to energy related structures : proceedings of the USA-Japan joint seminar held at Hyama, Japan, November 12-16, 1979

This volume contains the proceedings of the USA-Japan Joint Seminar on "Fracture Mechanics of Ductile and Tough Materials and Its Applications to Energy Related Structures". The seminar was supported jointly by the National Science Foundation of the United States and the Japan Society for the Promotion of Sciences. The seminar was held from November 12th to 16th, 1979, at Hayama, Japan, a picturesque resort town by the beach of Sagami Bay facing Mt. Fugi. The safety and integrity of the engineering structures for energy explora­ tion, energy production, and energy transportation are of utmost importance to our welfare. Both the United States and Japan are at the forefront of the re­ search on fracture mechanics and its applications to fracture prevention. Dur­ ing the past few years, major research efforts have been made in the areas of non-linear fracture mechanics and its applications to fracture initiation, slow crack growth, creep and fatigue. This joint seminar offered an unique opportunity for detailed exchange of information on current researches and fu­ ture efforts. Front Matter....Pages I-XIX Front Matter....Pages 1-1 Problems and Progress in the Design of Ductile Structures....Pages 3-20 Front Matter....Pages 21-21 Extension of J-Integral and Its Application to the Estimation of Structural Strength....Pages 23-34 J-Integral Evaluation of a Crack in a Reactor Vessel....Pages 35-44 An Engineering Methodology for Fracture Analyses of Tough Materials....Pages 45-55 Toward the Development of Plastic Fracture Mechanics Capabilities for Assessing the Reliability of Energy Related Structures....Pages 57-65 Elastic-Plastic Analyses of a Three-Point Bend Specimen and a Fracturing Pipe....Pages 67-77 Analysis of Ductile Fracture Behavior of Type 304 Stainless Steel....Pages 79-88 Evaluation of J-Integral and COD for Compact Tension Specimen....Pages 89-98 Relation Between J -Integral and Crack Tip Opening Displacement....Pages 99-107 Front Matter....Pages 109-109 The J-Integral Evaluation of the Crack Tip Plastic Blunting and the Elastic-Plastic Fracture....Pages 111-120 Elastic Plastic Toughness of Irradiated Steels with the Single Specimen Compliance Technique....Pages 121-130 A Simple Approximation for the Estimation of J-Integral Value of a Semi-Elliptical Surface Crack....Pages 131-138 An Evaluation of Procedures for J IC Determination....Pages 139-148 Evaluating Methods of J-Integral and Scatterings of Fracture Toughness....Pages 149-161 Front Matter....Pages 163-163 Notch Analysis of Ductile Fracture....Pages 165-167 A Criterion for Elastic-Plastic Failure of an Edge-Cracked Member Under Combined Loading of Membrane and Bending Stresses....Pages 169-178 Influence of Mean Stress on Ductile Fracture Properties....Pages 179-188 Thickness Effects on Fracture Criteria....Pages 189-198 Fracture Toughness and the Stretched Zone of Ultra-High Strength Steels....Pages 199-208 Assessment of Nonductile Fracture Initiation in Structural Steels Using X-ray Diffraction....Pages 209-218 Front Matter....Pages 219-219 The Influence of Microstructural Variations on the Fracture Process of Dual Phase Steel....Pages 221-230 J IC Calculations for Pressure Vessel Steel from Microvoid Kinetics....Pages 231-240 Fracture Toughness of Temper Embrittled 2 1/4Cr-1Mo and 3.5 Ni-Cr-Mo-V Steels....Pages 241-250 Front Matter....Pages 251-251 Fracture Mechanics of Creep Crack Growth in Metallic Materials....Pages 253-262 A Nonlinear Fracture Mechanics Approach to Crack Propagation in the Creep-Fatigue Interaction Range....Pages 263-270 A Consideration of Fatigue Limits and Notch Sensitivity Based on Successive Observations of the Crack Initiation Process....Pages 271-280 Some Considerations of Low Cycle Fatigue in Metals....Pages 281-291 Fatigue Strength of Butt-Welded Joints with Angular Distortion....Pages 293-301 Some Basic Problems in the Evaluation of Fatigue Crack Growth from Surface Flaws....Pages 303-312 Back Matter....Pages 313-314 Proceedings of the USA-Japan Joint Seminar on `Fracture Mechanics and Tough Materials and its Applications to Energy Related Structures', 12-16 November 1979, Hayama, Tokyo, Japan