Limit analysis of equal-diameter piping branch junctions with local wall-thinning under internal pressure

作者：Wang F^*; Chen G; Liu Y H; Cen Z Z

来源：Engineering Mechanics, 2005, 22(5): 218-224.

• Elasto-plasticity FEM
• Equal-diameter piping branch junctions
• Failure mode
• Limit analysis
• Local wall-thinning

The elasto-plastic FEM is used to evaluate limit loads for equal-diameter piping branch junctions with local wall-thinning under internal pressure. Numerical examples of non-defective equal-diameter piping branch junctions show that the computed results are in good agreement with available experimental data. The size effects and the influence of local wall-thinning positions on the plastic limit loads of equal-diameter piping branch junctions are investigated. Some typical failure modes of equal-diameter piping branch junctions with local wall-thinning are studied. The obtained results may provide theoretical bases and numerical references for structural design and safety assessment of equal-diameter piping branch junctions with local wall-thinning.

• 出版日期2005
• 单位清华大学