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首页> 外文会议>2001 International gas research conference >FINITE ELEMENT ANALYSIS OF INDENTED PIPES USING THREE-DIMENSIONAL SOLID AND SHELL ELEMENTS
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FINITE ELEMENT ANALYSIS OF INDENTED PIPES USING THREE-DIMENSIONAL SOLID AND SHELL ELEMENTS

机译：三维固结与壳单元的静力管有限元分析

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摘要

This paper presents analysis of indented pipes using a number of Finite Element (FE) models to determine the deformations and stresses arising in typical cylindrical pipes damaged by indenters. The pipe material is elasto-plastic with isotropic strain hardening and the indenter is simulated with rigid contact elements with a prescribed radial displacement. Attention is focused on the residual stress distribution in the pipe wall as the indenter is removed from the pipe. A number of FE models using 2D plane strain, shell and 3D solid elements are used. A mesh sensitivity analysis and a comparison of the stresses obtained from shell and 3D solid elements show that a 3D solid model may be impractical because it requires a high degree of mesh refinement, whereas a shell FE model is capable of accurately calculating the residual stresses with considerably less computer time and storage.
机译：本文介绍了使用许多有限元（FE）模型对压痕管进行分析，以确定在压头损坏的典型圆柱管中产生的变形和应力。管道材料是具有各向同性应变硬化的弹塑性材料，压头是使用具有预定径向位移的刚性接触元件模拟的。当压头从管道上移开时，注意力集中在管道壁上的残余应力分布上。使用了许多使用2D平面应变，壳和3D实体元素的有限元模型。网格敏感度分析以及对壳和3D实体元素获得的应力的比较表明，由于3D实体模型需要高度的网格细化，因此可能是不切实际的，而壳有限元模型能够准确地计算残余应力大大减少了计算机时间和存储空间。

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  • 来源
  • 会议地点 Amsterdam(NL);Amsterdam(NL)
  • 作者

    T. H. Hyde; R. Luo; A. A. Becker;

  • 作者单位

    School of Mechanical, Materials, Manufacturing Engineering and Management University of Nottingham, UK;

    rnSchool of Mechanical, Materials, Manufacturing Engineering and Management University of Nottingham, UK;

    rnSchool of Mechanical, Materials, Manufacturing Engineering and Management University of Nottingham, UK;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 石油产品;
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