International Journal of Concrete Structures and Materials

Table 3 Fracture parameters of concrete under different loading rates.

From: Experimental Study on Crack Propagation of Concrete Under Various Loading Rates with Digital Image Correlation Method

Softening model	Loading rate (mm/s)	G_f (N/mm)	f_t (MPa)	σ₁ (MPa)	w₁ (mm)	w₀ (mm)
Hillerborg model	0.001	0.182	4.12	1.37	0.035	0.159
	0.01	0.220	4.24	1.41	0.042	0.187
	0.1	0.238	4.56	1.52	0.042	0.188
CEB model (1990)	0.001	0.182	4.12	0.62	0.045	0.287
	0.01	0.220	4.24	0.64	0.053	0.337
	0.1	0.238	4.56	0.68	0.053	0.339
CEB model (2010)	0.001	0.182	4.12	0.82	0.044	0.221
	0.01	0.220	4.24	0.85	0.052	0.259
	0.1	0.238	4.56	0.91	0.052	0.261

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