1995 · 16 citations · 2 references
Natural SciencesMaterials EngineeringMaterials ScienceCorrosion ScienceMaterials CharacterizationMechanical Behavior Of MaterialsCorrosion ProtectionCorrosion ResistanceCorrosion TestingCorrosion-resistant MaterialsFracture ToughnessStress Corrosion CrackingCantilever MechanicsCorrosion Coupon AnalysisHydrogen Sulfide CorrosionLead Sulfide CorrosionMechanical Strength TestingPrecracking TougheningStrength TestingSulfide Stress Cracking
Abstract This paper summarizes observations made by the authors over the last few years on the double-cantilever-beam (DCB) coupon and associated testing methodology. The NACE coupon compliance was experimentally determined and the accuracy of calculated stress intensity factors discussed. The difference between 7 and 14 day exposures are shown and a suggestion made for a reduced exposure. The importance of proper fatigue precracking is highlighted and the effect of DCB geometry with respect to out-of-plane cracking discussed.
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