摘要
压力管道是薄壳结构,会发生屈曲失稳破坏。采用侧压和内压力联合作用下的力学模型模拟了管道受到滑坡、洪水等自然环境的作用情况,用有限元方法计算管道的屈曲失稳情况。分析了管道的屈曲载荷和屈曲形态,给出了典型的管道屈曲变形模式,并绘出了厚度、内压、缺陷对管道屈曲载荷影响的关系图。
When pipelines are considered to be shell structures, they may exhibit structure failure due to the buckling. Research on buckled pipes is described in this paper, which subjected to both internal pressure and lateral pressure, and the critical buckling load and buckling model is analyzed, using the FEM. The effects of thickness internal pressure and imperfection on critical buckling load are also examined.
出处
《石油矿场机械》
2008年第8期18-21,共4页
Oil Field Equipment
