Table 1.

Experimental and FEA interfacial creep damage displacements at N=50,000. There was a moderate correlation between these values (r²=0.41). Relation between the total crack growth in the cement and crack volume fraction.

	Creep damage displacement [μm]		Cracks in the cement
Specimen	Experiment	FEA	Total crack growth, Experiment [mm]	Crack volume fraction, FEA [%]
1	3.1	7.3	10.68	0.31
2	4.2	5.0	1.64	0.17
3	0.7	2.5	3.03	0.09
4	2.1	2.4	4.37	0.05
5	6.0	7.4	9.27	0.18
6	14.2	21.0	5.66	0.38
7	14.9	218.9*	12.19	0.43*
8	23.4†	197.8*	2.72†	1.89*
9	11.3	1.4	8.49	0.02
10	33.5†	14.6	−1.06†	0.45

^†measured at N=10,000, specimen failed afterwards

^*measured at N=1,870, model failed afterwards