Simplified limit analysis of pipelines with multi-defects

Haofeng Chen, D.W. Shu

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


The load carrying capacities of pipelines with three defects of four configurations and dimensions are determined by a simplified numerical method for both lower and upper bound limit analyses of 3-D structures. Combining the previous load-carrying capacities of 3-D pipelines with both one and two part-through defects, the effects of the number of defects on the load-carrying capacity of pipelines with multi-defects along the pipelineaxis are investigated in detail. The admissible displacements and failure modes of defective pipelines under the action of various loading forms are discussed. The numerical results confirm the applicability of the procedure.
Original languageEnglish
Pages (from-to)207-213
Number of pages7
JournalEngineering Structures
Issue number2
Publication statusPublished - 2001


  • mathematical programming
  • limit analysis
  • loading path
  • pipelines


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