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Indexed by:会议论文
Date of Publication:2013-06-30
Included Journals:EI、Scopus
Page Number:414-419
Abstract:The finite element models of corroded pipelines with colony of defects composed of two longitudinal or circumferential aligned defects, and four defects arranged in rhombus shape are established and validated, respectively. Considering the different longitudinal and circumferential spacings between defects, the cases related to 13 types of colony of defects are computed. Based on the ratio of failure pressure of each case to the failure pressure of corresponding base case, the interaction between defects is determined. Then for X80 steel, a new interaction rule is proposed. Copyright ? 2013 by the International Society of Offshore and Polar Engineers (ISOPE).