Fracture 1969: Proceedings of the Second International Conference on Fracture, Brighton, April 1969

alloy aluminium applied stress ASTM behaviour bending bonds brittle fracture calculated carbide Charpy cleavage constant correlation corrosion crack extension crack growth rate crack initiation crack length crack propagation crack tip crazing criterion critical curve cyclic decrease defect density dependence dislocation ductile effect elastic embrittlement energy equation experimental fatigue crack propagation fatigue tests ferrite flaw fracture initiation fracture mechanics fracture stress fracture surface fracture toughness grain boundaries increase kg/mm² load maraging steel martensite material maximum measured metal microcracks microscope microstructure mild steel mode number of cycles observed obtained occurs paper parameter particles plane strain plastic deformation plastic strain range plastic zone plate plotted polymers polystyrene pressure ratio region rupture shear shown in Fig shows slip bands strain rate stress intensity factor stress-corrosion striations structure tensile stress tensile test tension test piece thickness tion Trans transition weld whiskers yield strength yield stress