Failure Analysis of the Tube Hydroforming Process Based on Anisotropic Damage Coupling Model

被引：1
|
作者：
Wen Y. [1 ]
Chen Z. [1 ]
机构：
[1] School of Mathematics and Physics, University of Science and Technology Beijing, Beijing
来源：
Jixie Gongcheng Xuebao/Journal of Mechanical Engineering | 2019年 / 55卷 / 18期
关键词：
Anisotropic damage; Finite element analysis; Hydroforming; Magnesium alloy AZ31B; Process parameter;
D O I：
10.3901/JME.2019.18.070
中图分类号：
学科分类号：
摘要：
Hydroforming of Magnesium tubes presents challenges due to its more complex constitutive behavior. Compared to steel, its low thermoplasticity formability brings more issues in experimental and simulation work. Cracking often limits the quality of product during the hydroforming process. Tube hydrofroming experiments along with the finite element analysis, microstructure and mechanical properties of magnesium alloy AZ31B tube hydroforming are investigated to demonstrate the damage evolution during the process. The dangerous area with high risk of failure is predicted. It is found that formability of magnesium alloy AZ31 can be enhanced with elevated temperature range from room temperature to 300℃. Low initial axial feed and then increased simultaneously with the internal pressure can avoid possible overall buckling and wrinkling. To improve the dimension accuracy of the specimens, internal pressure is further increased when the axial feed is eventually exhausted. Based on continuum damage mechanics, a ductile damage model which takes account of anisotropic behavior of magnesium alloy AZ31B is integrated into an explicit finite element frame work and also be validated with experimental work. Insights are provided for the variation of different process parameters related to formed specimens. © 2019 Journal of Mechanical Engineering.
引用
收藏
页码：70 / 77
页数：7
相关论文
共 22 条
  • [1] Crapps J., Marin E.B., Horstemeyer M.F., Et al., Internal state variable plasticity-damage modeling of the copper tee-shaped tube hydroforming process, Journal of Material Porcessing Technology, 210, 13, pp. 1726-1737, (2010)
  • [2] Ahmetoglu M., Altan T., Tube hydroforming: state-of-the-art and future trends, Journal of Materials Processing Technology, 98, 1, pp. 25-33, (2000)
  • [3] Fann K.J., Hsiao P.Y., Optimization of loading conditions for tube hydroforming, Journal of Materials Processing Technology, 140, 1-3, pp. 520-524, (2003)
  • [4] Chao H.Y., Sun H.F., Chen W.Z., Et al., Static recrystallization kinetics of a heavily cold drawn AZ31 magnesium alloy under annealing treatment, Materials Characterization, 62, 3, pp. 312-320, (2011)
  • [5] Shoichiro Y., Hisashi N., Hirokuni Y., Et al., Formability enhancement in magnesium alloy stamping using a local heating and cooling technique: circular cup deep drawing process, Journal of Materials Processing Technology, 142, 3, pp. 609-613, (2003)
  • [6] Hill R., A theory of the yielding and plastic flow of anisotropic metals, Proceedings of the Royal Society of London Series A, 193, 1033, pp. 281-297, (1948)
  • [7] Hill R., Theoretical plasticity of textured aggregates, Mathematical Proceeding of the Cambridge Philosophical Society, 85, 1, pp. 179-191, (1979)
  • [8] Hill R., Constitutive modeling of orthotropic plasticity in sheet metal, Journal of the Mechanics Physics of Solids, 38, 3, pp. 405-417, (1990)
  • [9] Hill R., A user-friendly theory of orthotropic plasticity in sheet metal, International Journal of Mechanical Sciences, 35, 1, pp. 19-25, (1993)
  • [10] Barlat F., Lian J., Plastic behavior and stretchability of sheet metals, Part I: A yield function for orthotropic sheet under plane stress conditions, International Journal of Plasticity, 5, 1, pp. 51-66, (1989)
123