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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 13    No. 6    December 2003

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Numerical simulation of influence of viscous adhesive stress on viscous pressure bulging process of hemispherical sphere
LIU Jian-guang(刘建光), WANG Zhong-jin(王忠金), WANG Zhong-ren(王仲仁)

School of Materials Science and Engineering, 
Harbin Institute of Technology, Harbin 150001, China

Abstract:The mechanical model of viscous pressure bulging process is presented. The viscous pressure bulging process of hemispherical sphere is analyzed by the numerical simulation and experiments. The research results show that the viscosity of viscous medium significantly affected the thickness distribution, strain distribution and shape of hemispherical sphere, which provides analytic basis for selecting reasonably viscous medium and designing process of viscous pressure forming. 

 

Key words: viscous pressure forming(VPF); hemispherical sphere; bulging; numerical simulation; viscous adhesive stress

ISSN 1672-7029
CN 43-1423/U

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