Table 6.

Material constants adopted for the CDP model for different composite series.

	The Law of Strengthening in Compression		The Law of Weakening in Tension
Series	σc (MPa)	${\epsilon }_c^{-in}·{10}^{-3}$	σt (MPa)	$u_t^{-pl}$ (mm)	dt
A	46.15	1.29	4.23	0	0
	76.91	1.50	0.042	0.04	0.95
B	52.10	1.27	4.60	0	0
	86.84	1.50	0.046	3.648	0.95
C	57.34	1.37	5.25	0	0
	95.56	1.50	0.053	3.424	0.95