Transactions of Materials and Heat Treatment

Title：Finite element simulation for tube hydroforming process and analysis of failure mode

Authors： YAO Dan GAO Zhen-li ZHANG Jing-xian(Electromechanical Engineering Department Beijing Institute of Civil Engineering and Architecture Beijing 100044 China)

Unit：

KeyWords： failure mode finite element mode simulation hydroforming Ansys/LS-DYNA

ClassificationCode：TG394

year,vol(issue):pagenumber：2007,32(5):145-147

Abstract：

The hydroforming of bulging in the middle of a tube was studied.By using the explicit code LS-DYNA,the tube hydroforming process was simulated and reference was provided for the practical forming experiments.The most important parameters are pressure,axial feeding and material properties in the controlling of nydroforming process.The different failure modes and forming results from FEM simulations in different loading paths were analyzed.The simulation results were also compared with experimental results in the same condition and the agreement was proved to be good.The study shows that the loading path in the forming process is important(internal pressure and axial feeding).It also indicates that the hydroforming process can be simulated with good accuracy.

Funds：

北京市教委科技发展项目(KM200510016006)

Reference：

[1]杨兵,宋忠财,张卫刚,等,管件液压成形的影响因素[J].上海交通大学学报,2005,39(11):1767-1774.
[2]袁安营,王忠堂,张士宏.管材液压胀形有限元模拟[J].计算机辅助工程,2006,15(增刊):370-373.

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