Abstract
In this paper a computer-aided method for the calculation of soil cutting force is described. The simultaneous equations for both the stress on a blade and the soil shear stress are derived from the slip surface in the soil. The input data are width, length, cutting depth and angle of the blade, soil cohesion, angle of soil internal friction, soil-metal adhesion, angle of soil-metal friction, and apparent density of the soil.
The calculated results showed accurate, the error being less than ±20% as compared with Hatamura's experimental data in loam soil, and almost agreed with the results by Hettiaratchi's method at the cutting angle of 45° in clay soil.
