Defects and Fracture

Section I Crack Initiation at Surface and Grain Boundary.- Fatigue crack initiation with creep.- Cyclic strain localization and fatigue crack initiation in persistent slip bands in face-centred cubic metals and single-phase alloys.- Defect orientation in fatigue fracture under multiaxial stress-strain conditions.- Interfacial fracture in alloy steels.- Section II Fatigue Crack Propagation.- Fatigue crack growth and macroscopic damage accumulation.- A fatigue reliability distribution based on probabilistic micromechanics.- Application of the similarity methods to the damage cumulation and fatigue crack growth studies.- Fatigue crack propagation related to a dislocation distribution.- Section III Theoretical Consideration of Defects and Cracks.- The concept of point stress.- The circular crack as a surface defect.- Forces and moments on distributed defects and cracks.- Non-local elasticity and the line crack problem.- On defects in Cosserat media.- Section IV Ductile Fracture.- Concepts of linear and nonlinear fracture mechanics.- On the mechanisms of ductile fracture of metals.- Some aspects of evaluation of defects in pressure vessels.- Section V Fracture Modeling and Testing.- A probabilistic endochronic theory of fracture.- Overall effects due to cracks and crack-like defects.- Realistic defects as sources for initiation of fracture — mechanical behaviour — available fracture criteria.- Computer simulation of fracture tests.- Section VI Deformation and Fracture.- The contribution of vacancy fluxes and dislocation motion to deformation and fracture at elevated temperatures.- Macroscopic segregation in ingots and its implications in modelling of structures made from heavy sections.- Theoretical aspects of liquid metal embrittlement.- List of Participants.