T.J.Bai 1
,
2) and C.F.Ren 1) 1) Shenyang University
,
Shenyang 110044
,
China 2) Institute of Metal Research
,
The Chinese Academy of Sciences
,
Shenyang 110015
,
China
金属学报(英文版)
To avoid leaking or bursing by crack on surface of preddure vessels made of streels,a method for analyzing the principle of propagation of a surface crack is established,and used on a spherical vessel with program calculation and simulation,the program is written in QBASIC and the reaults are provided and discussed.
关键词:
spherical vessel
,
null
,
null
,
null
Shihong ZHANG Zhongren WANG (Z.R. Wang) Yingchun GUO Jianyi WANG Dept.of Materials Science and Technology.Harbin Institute of Technology
,
Harbin
,
150006
,
China
材料科学技术（英文）
The dieless hydroforming of spherical vessels from combination frustum shells is put forward in the present paper,and the forming process is developed by means of elastoplastic finite element method and experiments.In this paper the principle and experimental procedure of the new technology are introduced,the simulation method and the calculating assumptions are presented,the deformation process and the deformation characteristics of the shells are discussed,as well as the stress and strain distributions of the shell during bulging are analysed.
关键词:
spherical vessel
,
null
,
null
,
null
