The Delft Sand, Clay & Rock Cutting Model, 2019a

The Delft Sand, Clay & Rock Cutting Model.
40
35
30
25
Force Direction Angle ψ vs. Blade Angle α
hi=0.05 m Flow Type
hi=0.10 m Flow Type
Force Direction Angle ψ (Degrees)
20
15
10
5
0
-5
-10
-15
-20
-25
-30
-35
-40
30 45 60 75 90
Blade Angle α (Degrees)
hi=0.15 m Flow Type
Experiments hi=0.05 m
Experiments hi=0.10 m
Experiments hi=0.15 m
hi=0.05 m Tear Type
hi=0.10 m Tear Type
hi=0.15 m Tear Type
© S.A.M.
Figure 7-46: The direction of the total cutting force measured and calculated.
Horizontal Cutting Force F h (kN)
Horizontal Cutting Force F h vs. Layer Thickness h i
3.00
2.90
2.80
2.70
2.60
2.50
2.40
2.30
2.20
2.10
2.00
1.90
1.80
1.70
1.60
1.50
1.40
1.30
1.20
1.10
1.00
0.90
0.80
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.00
0.00 0.05 0.10 0.15 0.20
Layer Thickness h i (m)
Fh Flow
Fh Tear - Beta Flow
Fh Tear - Beta Real
Fh Curling
Hatamura & Chijiiwa
© S.A.M.
Figure 7-47: The 60 degree experiments.
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