Influences of Blank Holding Force on Stamping of Large Ellipsoidal Heads Based on Simulation

Abstract:

Ellipsoidal heads is a important composition of railways tank car. Sheet stamping process is a common method used for manufacturing ellipsoidal heads. An accurate and efficient finite element model was developed for analysis and prediction of ellipsoidal heads forming quality, with different degrees of reduction deformation at different binder forces considered, and self-adaptive mesh were adopted to improve computational efficiency and quality. And the results of simulation was validated by experimental results. Based on this finite element model, the distributions of stress, strain and wall thickness during this process were obtained.

• Periodical: Applied Mechanics and Materials (Volumes 217-219)
• Pages: 2097-2100
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.217-219.2097
• Online since: November 2012
• Authors: Zheng Zhi Luo, Jing Zeng, Jin Peng Yu
• Keywords: Blank Holding Force, Ellipsoidal Heads, Finite Element Method (FEM), Stamping Process

References

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DOI: 10.1016/j.commatsci.2011.08.010

[2] ZHENG Xiao-hua，AN Hong-ping，LIU Jian-sheng,in:Stretch Forming Analysis on Large Thick-Wall Ellipse Head by Finite Element Method, Journal of taiyuan university of science and technology32 (20121) 472–475.

[3] Standard of GB713-2008,steel plates for boilers and pressure vessels.

[4] Standard of GBT25198-2010,Heads for pressure Vessels.