การทดสอบการโก่งของฟันขุด

Abstract

The main object of this project is determine appropriate of tillage tools for each condition of soil. The appropriation of tillage tools were determine from value of shear and compressive stress in the experiment. Experiment we use 3 types of tillage tools. Testing we fix moisture content and density of soil, depth and velocity of tillage tools in domain. The result of this experiment were show - In material type 2 were given stress and ditch width maximum - In material type 3 were given stress and ditch width minimum - In material type lwere given stress and ditch width medium between type 2 & 3 Thus, material type 2 appropriate to use in softness of soil and want more ditch width. Material type 3 appropriate to use in hardness of soil and want less ditch width. Material type 1 appropriate to use in soil hardness less than soil in type 3 but it can use in soil hardness more than type 2, ditch width of type 1 were medium between type 2 & 3