Precracked specimens have been developed to enable a fracture mechanics approach to be made to the study of stress corrosion cracking in cold drawn prestressing tendon.
Stress corrosion has been shown to occur in realistic environments and the effect of chloride contamination investigated. Values for KIc, KIscc and crack propagation velocity have also been obtained, and limited experiments carried out to determine the effect of stress relief on stress corrosion susceptibility.
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