Table 2.

Mode I critical strain energy release rates G_IC (N/mm).

Initial delamination length a0 = 25 mm	Sample	Criterion	CC	CBT	MCC
	1	P max	0.309	0.324	0.480
		P AE	0.309	0.325	0.482
	2	P max	0.365	0.370	0.443
		P AE	0.359	0.364	0.441
	3	P max	0.309	0.309	0.386
		P AE	0.307	0.307	0.384
	4	P max	0.340	0.346	0.356
		P AE	0.343	0.349	0.360
	5	P max	0.258	0.279	0.379
		P AE	0.254	0.275	0.374
Initial delamination length a0 = 50mm
	6	P max	0.432	0.436	0.418
		P AE	0.429	0.433	0.413
	7	P max	0.335	0.365	0.607
		P AE	0.333	0.363	0.602