Elastoplastic Analysis of a Novel Parabola-arc-shaped Head for Internal Pressure Vessel

摘要：

　　In this paper, the elastoplastic stress analysis of a novel parabola-arc-shaped head subjected to internal pressure has been presented.The investigation was carried out by the finite element analysis.Limit loads and burst pressures are obtained for various geometric parameters and compared with the classical torispherical and ellipsoidal heads.As the same middle diameter and thickness, the novel parabola-arc-shaped head shows better mechanical property than the torispherical head.The burst pressure is mainly determined by the size of cylinder and the burst always occurs in cylinder.Head can improve the burst load of the shorter cylinder.The improvement of the novel parabola-arc-shaped head is almost the same as the ellipsoidal head, while the torispherical head is slightly inferior.The novel parabola-arc-shaped head is more easily forming and less material consuming compared to the classic ones.

关键词： parabola-arc-shaped head elastoplastic limit load burst pressure

作者: Ning Wang Hongqi Liu Shan-Tung Tu

作者单位: Key Laboratory of Pressure Systems and Safety,Ministry of Education,East China University of Science and Technology,Shanghai,200237,China

会议类型: 国际会议

会议名称: 2014 International Symposium on Structural Integrity,ISSI2014(2014国际结构完整性学术会议)

会议地点: 兰州

会议语种:英文

页码: 389-399

在线出版日期: 2014-08-20（万方平台首次上网日期，不代表论文的发表时间）