ABSTRACT

The burst pressure of the perforated-steel strip composite pipe (PSSCP) considering plasticity is investigated through experimental, theoretical and numerical methods in this paper. The results obtained from the mentioned methods are in good agreement with each other, which illustrates the accuracy and reliability of the proposed theoretical and numerical models. The burst pressure of the pipe is studied in detail at the different temperature conditions. Some influential parameters of PSSCP on the burst pressure are also investigated in order to guide its cross-section design. The theoretical model and the finite element model proposed in this paper can not only give an estimation of the safety and reliability of the pipe when it is subjected to internal pressure, but can also provide some reference for improving and optimising its cross-section design.

摘要

本文通过实验、理论和数值方法研究了考虑塑性的穿孔钢带复合管（PSSCP）的爆破压力。从上述方法中获得的结果相互吻合，这说明了所提出的理论和数值模型的准确性和可靠性。详细研究了管道在不同温度条件下的爆破压力。还研究了PSSCP对爆破压力的一些影响参数，以指导其横截面设计。本文提出的理论模型和有限元模型不仅可以对管道在承受内压时的安全性和可靠性进行估计，