Progressive Failure Analysis of Pipeline Repaired by Composite Wrapping
Composite overwrap systems have been widely used to repair damaged pipelines.Its effectiveness has been proven by many researches and engineering applications.However,the research on progressive failure mode of the repaired structure has not been reported.In the present paper,finite element method with Hashin failure criteria is developed to realize the progressive failure analysis.The predicted burst pressure is in good agreement with the burst experiment.Different from widely-reported failure progress in Composite Overwrapped Pressure Vessels (COPV),the progressive failure analysis for the defected pipeline overwrapped by composite reveals very different failure stages: stable failure propagation and rapid failure propagation.The identification of critical pressure between these two stages is valuable in composite reparation design for the defected pipeline.
composite reinforcement progressive failure hydrostatic burst test damage mode
WANG Yan Yv CHENG Zhi Qiang LIU Bao Sheng
Applied Mechanics and Structure Safety Key Laboratory of Sichuan Province,School of Mechanics and Engineering,Southwest Jiaotong University,Chengdu,610031,China
国际会议
2016 International Symposium on Structural Integrity，ISSI—2016(2016国际结构完整性研讨会)
天津
英文
483-487
2016-05-26（万方平台首次上网日期，不代表论文的发表时间）