首页> 外文会议>International conference on ocean, offshore and arctic engineering;OMAE2011 >ON THE STRUCTURAL RESPONSE OF A FLEXIBLE PIPE WITH DAMAGED TENSILE ARMOR WIRES
【24h】

ON THE STRUCTURAL RESPONSE OF A FLEXIBLE PIPE WITH DAMAGED TENSILE ARMOR WIRES

机译:装甲线破损的柔性管的结构响应研究

获取原文

摘要

This paper studies the structural response of a 6.0" flexible pipe under pure tension considering two different situations: the pipe is intact or has five wires broken in its outer tensile armor. A three-dimensional nonlinear finite element model devoted to analyze the local mechanical response of flexible pipes is employed in this study. This model is capable of representing each wire of the tensile armors and, therefore, localized defects, including total rupture, may be adequately represented. Results from experimental tests are also presented in order to validate the theoretical estimations. The theoretical and experimental results indicate that the imposed damage reduced the axial stiffness of the pipe. High stress concentrations in the wires near the damaged ones were also observed and, furthermore, the stresses in the inner carcass and the pressure armor are affected by the imposed damage, but, on the other hand, the normal stresses in the wires of the inner tensile armor are not.
机译:本文研究了考虑两种不同情况的6.0“挠性管在纯张力下的结构响应:完整的管或在其外部抗拉铠装中断裂了五根线材的三维三维有限元模型,用于分析局部机械响应本研究采用柔性管的模型,该模型能够表示拉伸铠装的每根线,因此,可以充分表示局部缺陷(包括总断裂),并给出了实验结果,以验证理论上的正确性。理论和实验结果表明,施加的损伤降低了管道的轴向刚度,还观察到损伤附近的钢丝中的应力集中较高,此外,内胎体和耐压装甲中的应力受到应力的影响。施加的损坏,但另一方面,内部抗拉装甲的钢丝中的法向应力不大t。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号