Theoretical 3D Model for Quasistatic Critical Derailment Coefficient of Railway Vehicles and a Simplified Formula

Table 1

Relation between creep coefficient and .

	0.1	0.2	0.3	0.4	0.5	0.6	0.7	0.8	0.9	—
C11	3.31	3.37	3.44	3.53	3.62	3.72	3.81	3.91	4.01	—
C22	2.52	2.63	2.75	2.88	3.01	3.14	3.28	3.41	3.54	—
C23	0.473	0.603	0.715	0.823	0.929	1.03	1.14	1.25	1.36	—
C33	8.82	4.27	2.96	2.32	1.93	1.68	1.50	1.37	1.27	—
	1.0	0.9	0.8	0.7	0.6	0.5	0.4	0.3	0.2	0.1
C11	4.12	4.22	4.36	4.54	4.78	5.10	5.57	6.34	7.78	11.7
C22	3.67	3.81	3.99	4.21	4.50	4.90	5.48	6.40	8.14	12.8
C23	1.47	1.59	1.75	1.95	2.23	2.62	3.24	4.23	6.63	14.6
C33	1.19	1.11	1.04	0.965	0.892	0.819	0.747	0.674	0.601	0.526