Lewis B A,Manual for LS-DYNA soil material model 147,Department of Transportation:Federal Highway Administration,U.S.A,2004.
[12]
Karmakar S;Ashrafizadeh S R;Kushwaha R L,Experimental validation of computational fluid dynamics modeling for narrow tillage tool draft,Journal of Terramechanics,2009(5).
[13]
Mootaz Abo-Elnor ;R. Hamilton ;J.T. Boyle,3D Dynamic analysis of soil-tool interaction using the finite element method,Journal of Terramechanics?,2003, 40(1).
[14]
Onwualu AP ;Watts KC,Draught and vertical forces obtained from dynamic soil cutting by plane tillage tools,Soil & Tillage Research?,1998, 48(4).