[1] Lou Guantao. Research and application status and development direction of titanium alloy[J].Progress in titanium industry, 2003, 20(2): 9-13(in Chinese).
[3] Tirupathi R. Chandrupatla, Ashok D. Belegundu.Introduction to Finite Elements in Engineering[M]. translated by Zeng Pan, 3rd ed. Beijing: Tsinghua University Press, 2006: 8. (in Chinese).
[4] Zhang Hongwu, Guan Zhenqun, Li Yunpeng,et al. FEM Analysis and the Technology of CAE[M]. Beijing: Tsinghua University Press, 2004: 70-72(in Chinese).