Defects and Fracture : Proceedings of First International Symposium on Defects and Fracture, Held at Tuczno, Poland, October 13–17, 1980

An International Symposium on Defects and Fracture was held in Tuczno, Poland, 13-17 October 1980 under the sponsorship of the Polish Academy of Sci­ ences and Institute of Fracture and Solid Mechanics, Lehigh University. Profes­ sor H. Zorski of the Academy and Professor G. C. Sih of Lehigh University were Co-Chairmen. The idea for the Symposium was initiated by the members of the Organizing Committee: G. C. Sih (Co-Chairman), H. Zorski (Co-Chairman), M. Matczynski (Secretary), D. R. Axelrad, R. Bullough, J. W. Provan and R. deWit. With the rapid development of high performance materials and their increasing use in vital structural applications, there is a need for a more in-depth under­ standing of the fundamentals associated with material behavior and failure. Al­ though this topic encompasses a wide range of disciplines, it is appropriate to narrow the discussion to material failures initiating from inherent, unavoidable defects or cracks. A balanced coverage of analysis and physics was achieved by inviting speakers with backgrounds in applied mechanics and solid state physics. The input was limited to a small group of specialists who had the opportunity to discuss not only past progress but also ideas for future research. Front Matter....Pages i-xiv Front Matter....Pages 1-1 Fatigue Crack Initiation with Creep....Pages 3-13 Cyclic Strain Localization and Fatigue Crack Initiation in Persistent Slip Bands in Face-Centred Cubic Metals and Single-Phase Alloys....Pages 15-28 Defect Orientation in Fatigue Fracture under Multiaxial Stress-Strain Conditions....Pages 29-38 Interfacial Fracture in Alloy Steels....Pages 39-49 Front Matter....Pages 51-51 Fatigue Crack Growth and Macroscopic Damage Accumulation....Pages 53-62 A Fatigue Reliability Distribution Based on Probabilistic Micromechanics....Pages 63-69 Application of the Similarity Method to Damage Cumulation and Fatigue Crack Growth Studies....Pages 71-79 Fatigue Crack Propagation Related to a Dislocation Distribution....Pages 81-90 Front Matter....Pages 91-91 The Concept of Point Stress....Pages 93-100 The Circular Crack as a Surface Defect....Pages 101-107 Forces and Moments on Distributed Defects and Cracks....Pages 109-119 Non-Local Elasticity and the Line Crack Problem....Pages 121-128 On Defects in Cosserat Media....Pages 129-138 Front Matter....Pages 139-139 Concepts of Linear and Nonlinear Fracture Mechanics....Pages 141-153 On the Mechanisms of Ductile Fracture of Metals....Pages 155-163 Some Aspects of Evaluation of Defects in Pressure Vessels....Pages 165-176 Front Matter....Pages 177-177 A Probabilistic Endochronic Theory of Fracture....Pages 179-198 Overall Effects due to Cracks and Crack-Like Defects....Pages 199-208 Realistic Defects as Sources for Initiation of Fracture — Mechanical Behaviour — Available Fracture Criteria....Pages 209-216 Computer Simulation of Fracture Tests....Pages 217-230 Front Matter....Pages 231-231 The Contribution of Vacancy Fluxes and Dislocation Motion to Deformation and Fracture at Elevated Temperatures....Pages 233-240 Macroscopic Segregation in Ingots and Its Implications in Modelling of Structures Made from Heavy Sections....Pages 241-251 Theoretical Aspects of Liquid Metal Embrittlement....Pages 253-273 Back Matter....Pages 275-276 An International Symposium on Defects and Fracture was held in Tuczno, Poland, 13-17 October 1980 under the sponsorship of the Polish Academy of SciƯ ences and Institute of Fracture and Solid Mechanics, Lehigh University. ProfesƯ sor H. Zorski of the Academy and Professor G.C. Sih of Lehigh University were Co-Chairmen. The idea for the Symposium was initiated by the members of the Organizing Committee: G.C. Sih (Co-Chairman), H. Zorski (Co-Chairman), M. Matczynski (Secretary), D.R. Axelrad, R. Bullough, J.W. Provan and R. deWit. With the rapid development of high performance materials and their increasing use in vital structural applications, there is a need for a more in-depth underƯ standing of the fundamentals associated with material behavior and failure. AlƯ though this topic encompasses a wide range of disciplines, it is appropriate to narrow the discussion to material failures initiating from inherent, unavoidable defects or cracks. A balanced coverage of analysis and physics was achieved by inviting speakers with backgrounds in applied mechanics and solid state physics. The input was limited to a small group of specialists who had the opportunity to discuss not only past progress but also ideas for future research 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 Proceedings of the First International Symposium on Defects and Fracture, Tuczno, Poland, October 13-17, 1980