1966 · 19 citations · 0 references
EngineeringMaterials EngineeringMaterials ScienceMechanical Behavior Of MaterialsStructural EngineeringStructural MaterialsDamage MechanicsFatigueFracture MechanicsFracture PropagationCrack PropagationCumulative Damage AssessmentFatigue Crack PropagationFatigue FractureFatigue TestingFractographyFracture Propagation AnalysisFracture Surface Analysis
Abstract : Starting from a variety of observations and hypotheses concerning crack propagation, the possibilities of any macro- and principally micro-fractography to that stage of the fatigue process has been described. Microfractography - the examination of a fracture surface under high and ultra-high magnification by means of an optical or an electron-microscope - makes it possible to study the mechanism of crack propagation under fatigue stresses in relation to external and internal parameters which are otherwise difficult or impossible to observe. Microfractography appears to be particularly suitable for the study of cumulative damage and for the determination of the cause of service failures. (Author)