Effects of Flaw Geometry on the Fracturing Behavior of Rock-Like Materials Containing Two Arch-Like Parallelogram Flaws

Table 1

Tested sample geometries containing two prefabricated flaws under uniaxial compression.

Type	Number	L (mm)	(mm)	T (mm)	α (°)	β (°)	b (mm)	h (mm)
TA5	TA5-1	100.1	49.8	50.0	45	45	2	5
	TA5-2	100.0	50.2	50.1	45	45	2	5
	TA5-3	100.1	50.1	49.7	45	45	2	5
	TA5-4	100.2	50.0	49.8	45	60	2	5
	TA5-5	100.2	50.0	50.1	45	60	2	5
	TA5-6	99.9	50.1	50.0	45	60	2	5
	TA5-7	100.1	50.1	50.0	45	75	2	5
	TA5-8	100.2	49.7	50.2	45	75	2	5
	TA5-9	100.3	49.8	49.9	45	75	2	5
	TA5-10	100.0	49.9	49.7	60	60	2	5
	TA5-11	100.0	50.1	49.8	60	60	2	5
	TA5-12	99.8	50.0	50.0	60	60	2	5
	TA5-13	99.9	50.2	50.2	60	75	2	5
	TA5-14	100.1	49.9	50.3	60	75	2	5
	TA5-15	100.2	49.8	50.1	60	75	2	5
	TA5-16	100.1	50.3	49.8	75	75	2	5
	TA5-17	100.2	50.2	49.8	75	75	2	5
	TA5-18	100.3	50.2	50.0	75	75	2	5
No flaw	I-1	100.1	49.8	50.2	—	—	—	—
	I-2	99.9	49.8	50.3	—	—	—	—
	I-3	100.1	49.7	50.2	—	—	—	—

Note. TA₅: the specimens having the prefabricated flaws (the subscript means ligament), I: intact rock, L: length of sample, : width of sample, and T: thickness of sample.