부산대학교 도서관

The objective of the work reported herein was to compile data and define criteria for monitoring intervention for local buckling, denting, and tensile failure, based upon data and experience from the pipeline industry. It was established that three separate quantities may be defined for each loading condition; a limit state criterion, a damage state criterion, and an intervention criterion. The definitions of the terms as they relate to pipelines are as follows: limit state criterion--criterion for the onset of ultimate pipeline failure when contents are lost; damage state criterion--criterion for the onset of significant permanent plastic deformation without loss of contents; intervention criterion--quantified criterion for action prior to occurrence of limit state, based upon statistical level of confidence and acceptable level of risk.