1. ABAQUS/Standard User's Manuals, Version 5.5, Hibbitt, Karlsson & Sorensen, Pawtucket, RI, USA.
2. Mechanical Metallurgy;Dieter,1981
3. Modeling of Powder Compaction: A Review
4. Statics and Kinematics of Granular Materials;Nedderman,1992
5. ABAQUS Theory Manual, Version 5.5, Hibbitt, Karlsson & Sorensen, Pawtucket, RI, USA.