• CN:11-2187/TH
  • ISSN:0577-6686

›› 1993, Vol. 29 ›› Issue (3): 67-73.

• 论文 • 上一篇    下一篇

自增强内锥圆筒压力容器的弹塑性应力分析

刘勇;张康达;王良国;于道文   

  1. 浙江工业大学;华东工学院
  • 发布日期:1993-05-01

ELASTOPLASTIC STRESS ANALYSIS OF AUTOFRETTAGED INTERNAL CONE-CYLINDER PRESSURE VESSEL

Liu Yong;Zhang Kangda;Wang Liangguo;Yu Daowen   

  1. Zhejiang University of Technology East China Institute of Technology
  • Published:1993-05-01

摘要: 根据材料的实际性能实验得出了高强度的混合硬化模型,对自增强厚壁内锥圆筒组合式压力容器加载时的应力奕变和卸载后的残余应力应变,建立了非线性边界无限制的计算格式,得到了这种类型的压力容器沿径向和轴向的应力场,并通过超高压自增强实验与有限元计算进行了验证。

关键词: 弹塑性, 压力容器, 应力场

Abstract: This paper firstly presents one mixed hardening material model of high strength steel by means of tension-compression experiment and proposes the non-linear BEM implementation for calculating the loading stress-strains and unloading residual stress-strains of the autofrettaged thick walled internal cone shape-cylinder pressure vessel. Then, the stress fields along axis and radial direction re obtained. The comparison with results of autofretiaged experiment and large FEM program ADINA is given finally.

Key words: Elastoplastic, Pressure vessel, Stress field