Table 4.

Measured cracking load, peak load, CMOD_c, and compliance for plain concrete specimens with varied notch-to-height ratios. CMOD_c is the crack mouth opening displacement corresponding to peak load. The elastic compliance is discussed in Section 3.5.

Specimen	Peak Load Pu (kN)	Cracking Load Pini1 (kN)	Cracking Load Pini2 (kN)	Averaged Cracking Load Pini (kN)	Pini/Pu	CMODc (mm)	Compliance (mm/N)
JZ-W-2-1	24.81	11.38	14.67	13.03	0.52	0.03	8.60 × 10−7
JZ-W-2-2	24.06	12.74	N.A. 1	12.74	0.53	0.05	1.25 × 10−6
JZ-W-2-3	23.12	N.A. 1	10.10	10.10	0.44	0.04	1.20 × 10−6
JZ-W-2-4	25.59	21.97	21.06	21.51	0.84	0.05	1.22 × 10−6
JZ-W-2-5	24.04	22.00	21.22	21.61	0.90	0.04	1.02 × 10−6
JZ-W-2-6	24.34	22.76	N.A. 1	22.76	0.94	0.04	9.16 × 10−7
WJ-1	21.66	N.A. 2	N.A. 2	N.A. 2	N.A. 2	0.05	1.33 × 10−6
WJ-2	27.11	N.A. 2	N.A. 2	N.A. 2	N.A. 2	0.05	8.56 × 10−7
WJ-3	28.77	N.A. 2	N.A. 2	N.A. 2	N.A. 2	0.05	8.12 × 10−7
WJ-4	28.31	N.A. 2	N.A. 2	N.A. 2	N.A. 2	0.05	6.07 × 10−7
WJ-5	33.39	N.A. 2	N.A. 2	N.A. 2	N.A. 2	0.04	7.04 × 10−7
WJ-6	21.99	N.A. 2	N.A. 2	N.A. 2	N.A. 2	0.06	1.10 × 10−6
JZ-W-4-1	20.16	11.78	11.44	11.61	0.58	0.06	2.11 × 10−6
JZ-W-4-2	20.06	13.78	19.38	16.58	0.83	0.05	1.83 × 10−6
JZ-W-4-3	17.31	8.62	N.A. 1	8.62	0.50	0.06	2.20 × 10−6
JZ-W-4-4	16.57	13.37	11.85	12.61	0.76	0.06	2.71 × 10−6
JZ-W-6-1	12.21	6.47	6.44	6.45	0.53	0.07	3.94 × 10−6
JZ-W-6-2	12.07	8.63	6.67	7.65	0.63	0.08	4.05 × 10−6
JZ-W-6-4	13.14	5.82	N.A. 1	5.82	0.44	0.07	3.91 × 10−6
JZ-W-8-2	11.76	6.67	8.95	7.81	0.66	0.07	4.57 × 10−6
JZ-W-8-3	11.55	10.15	8.82	9.48	0.82	0.07	4.38 × 10−6
JZ-W-8-4	8.74	4.76	6.21	5.48	0.63	0.05	4.79 × 10−6
JZ-W-10-1	7.03	4.85	4.84	4.85	0.69	0.06	6.70 × 10−6
JZ-W-10-2	7.95	4.63	4.71	4.67	0.59	0.06	6.67 × 10−6
JZ-W-10-3	9.04	4.34	3.36	3.85	0.43	0.07	5.21 × 10−6
JZ-W-10-4	9.83	6.68	8.95	7.81	0.79	0.11	5.76 × 10−6

¹ Cracking load was not identified from the strain gauge. ² Cracking load was not measured for specimens WJ-1 to WJ-6.