Research on the Dynamic Mechanical Properties and Constitutive Models of Steel Fiber Reinforced Concrete and Polypropylene Fiber Reinforced Concrete

Table 5

Fitted DIF functions.

Vf
	A	B	A	B	C	A	B	C
0.000% (plain concrete)	1.3321	0.0904	0.0046	0.006	0.00007	0.215	0.0179	−0.0013
0.067% (PFRC)	1.3990	0.1100	0.0053	0.0008	0.0001	0.503	0.2010	0.0300
0.100% (PFRC)	1.3450	0.0940	0.0057	0.0009	0.0001	0.522	0.2000	0.0310
0.133% (PFRC)	1.4100	0.9500	0.0073	0.0016	0.0002	0.669	0.2480	0.0370
0.750% (SFRC)	1.4670	0.1300	0.0072	0.0013	0.0002	0.755	0.2740	0.0374
1.000% (SFRC)	1.5490	0.1540	0.0091	0.0017	0.0002	1.209	0.5860	0.0861
1.250% (SFRC)	1.5010	0.1350	0.0099	0.0018	0.0002	1.325	0.4530	0.0510