An Improved Statistical Damage Constitutive Model for Granite under Impact Loading

Table 2

Fitting result of the improved statistical damage constitutive model.

Specimen number	Strain rate (s^−1)	m value	a value	Association coefficient R^2
#2	81.90	2.151	0.585	0.9536
#4	81.26	2.627	0.436	0.9666
#6	107.02	2.191	0.480	0.9625
#7	130.24	2.472	0.426	0.9637
#8	185.98	3.432	0.241	0.9501
#10	204.87	3.484	0.248	0.9390
#11	192.40	2.621	0.428	0.9706
#12	172.44	2.118	0.486	0.9768
#13	97.34	0.805	1.542	0.7391
#15	155.04	1.612	0.728	0.9823
#16	153.87	1.536	0.769	0.9791
#19	99.29	2.264	0.491	0.9850