1. Abaqus, 2001. Abaqus/Standard User's Manual 6.2, Pawtucket, RI 02860
2. Alcoa, 1996. Aluminum Company of America, Pittsburgh, PA 15212
3. The flow of polycrystalline metals under simple shear;Andrade;Proceedings of Royal Society of London A,1952
4. On springback of double-curved autobody panels;Asnafi;International Journal of Mechanical Sciences,2001
5. ASTM, 2002a. Standard test methods for determining average grain size. Annual Book of ASTM Standards 03 (01), 251–274