17.10: Appendix J- The Coefficient d2

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**Table J-1: d₂ for h_b/h_i=1.**
h_b/h_i=1	φ	32^o	37^o	42^o	47^o	52^o
α	δ
15^o	15^o	0.409	0.608	0.816	1.037	1.274
	18^o	0.312	0.528	0.754	0.995	1.255
	21^o	0.205	0.436	0.680	0.939	1.220
	24^o	0.087	0.333	0.592	0.870	1.172
	27^o	-0.040	0.219	0.493	0.788	1.110
	30^o	-0.175	0.095	0.382	0.692	1.034
30^o	15^o	0.474	0.642	0.828	1.035	1.269
	18^o	0.412	0.588	0.782	1.000	1.249
	21^o	0.341	0.523	0.725	0.954	1.216
	24^o	0.261	0.447	0.657	0.895	1.169
	27^o	0.171	0.361	0.576	0.822	1.108
	30^o	0.071	0.264	0.483	0.735	1.031
45^o	15 o	0.398	0.553	0.733	0.945	1.196
	18^o	0.325	0.481	0.664	0.879	1.138
	21^o	0.241	0.396	0.579	0.797	1.061
	24^o	0.145	0.298	0.478	0.696	0.962
	27^o	0.037	0.183	0.358	0.572	0.836
	30^o	-0.086	0.051	0.217	0.421	0.678
60^o	15^o	0.195	0.317	0.465	0.650	0.885
	18^o	0.083	0.193	0.329	0.500	0.721
	21^o	-0.047	0.047	0.164	0.313	0.510
	24^o	-0.198	-0.126	-0.036	0.081	0.238
	27^o	-0.372	-0.331	-0.278	-0.208	-0.113
	30^o	-0.575	-0.574	-0.573	-0.572	-0.570

The dimensionless force d₂, perpendicular to the cutting velocity, as a function of the blade angle α, the angle of internal friction φ, the soil/interface friction angle δ, for h_b/h_i=1.

**Table J-2: d₂ for h_b/h_i=2.**
h_b/h_i=2	φ	32^o	37^o	42^o	47^o	52^o
α	δ
15^o	15^o	-0.024	0.262	0.552	0.853	1.170
	18^o	-0.253	0.064	0.387	0.722	1.076
	21^o	-0.496	-0.151	0.202	0.569	0.959
	24^o	-0.752	-0.381	-0.001	0.396	0.820
	27^o	-1.018	-0.626	-0.221	0.204	0.660
	30^o	-1.294	-0.884	-0.458	-0.007	0.479
30^o	15^o	0.266	0.471	0.693	0.938	1.211
	18^o	0.136	0.354	0.592	0.854	1.149
	21^o	-0.008	0.222	0.473	0.752	1.067
	24^o	-0.165	0.074	0.337	0.631	0.965
	27^o	-0.336	-0.089	0.183	0.490	0.841
	30^o	-0.520	-0.268	0.011	0.327	0.693
45^o	15^o	0.216	0.393	0.595	0.830	1.107
	18^o	0.087	0.267	0.475	0.718	1.007
	21^o	-0.059	0.123	0.334	0.582	0.880
	24^o	-0.221	-0.040	0.170	0.420	0.723
	27^o	-0.401	-0.226	-0.020	0.227	0.529
	30 o	-0.600	-0.435	-0.240	-0.002	0.293
60^o	15^o	-0.009	0.124	0.285	0.484	0.735
	18^o	-0.182	-0.060	0.089	0.275	0.513
	21^o	-0.379	-0.274	-0.145	0.019	0.233
	24^o	-0.603	-0.523	-0.422	-0.293	-0.122
	27^o	-0.859	-0.812	-0.753	-0.676	-0.571
	30^o	-1.151	-1.151	-1.150	-1.148	-1.146

The dimensionless force d₂, perpendicular to the cutting velocity, as a function of the blade angle α, the angle of internal friction φ, the soil/interface friction angle δ, for h_b/h_i=2.

**Table J-3: d₂ for h_b/h_i=3.**
h_b/h_i=3	φ	32^o	37^o	42^o	47^o	52^o
α	δ
15^o	15^o	-0.552	-0.177	0.198	0.581	0.979
	18^o	-0.921	-0.501	-0.080	0.350	0.800
	21^o	-1.306	-0.846	-0.384	0.092	0.590
	24^o	-1.703	-1.208	-0.708	-0.191	0.353
	27^o	-2.111	-1.586	-1.053	-0.498	0.090
	30^o	-2.528	-1.979	-1.417	-0.828	-0.201
30^o	15^o	0.020	0.263	0.522	0.805	1.118
	18^o	-0.182	0.079	0.360	0.667	1.009
	21^o	-0.402	-0.124	0.176	0.505	0.873
	24^o	-0.638	-0.346	-0.030	0.319	0.711
	27^o	-0.890	-0.588	-0.259	0.107	0.521
	30^o	-1.158	-0.850	-0.511	-0.132	0.301
45^o	15^o	0.017	0.215	0.440	0.698	1.001
	18^o	-0.171	0.034	0.267	0.537	0.856
	21^o	-0.379	-0.171	0.068	0.346	0.677
	24^o	-0.608	-0.400	-0.160	0.122	0.460
	27^o	-0.858	-0.656	-0.420	-0.141	0.199
	30^o	-1.133	-0.941	-0.717	-0.447	-0.114
60^o	15^o	-0.221	-0.076	0.097	0.310	0.578
	18^o	-0.455	-0.321	-0.159	0.042	0.298
	21^o	-0.718	-0.602	-0.460	-0.282	-0.052
	24^o	-1.014	-0.925	-0.814	-0.673	-0.488
	27^o	-1.349	-1.297	-1.231	-1.147	-1.034
	30^o	-1.728	-1.727	-1.726	-1.724	-1.722

The dimensionless force d₂, perpendicular to the cutting velocity, as a function of the blade angle α, the angle of internal friction φ, the soil/interface friction angle δ, for h_b/h_i=3.