Mode II Fracture of GFRP Laminates Bonded Interfaces under 4-ENF Test

Table 2

Results of critical load and fracture toughness .

Specimen	Critical load (N)	calculated by Eq. (26) (J/m^2)	obtained from VCCT (J/m^2)	Error (%)
1	570.00	337.90	349.43	3.30
2	612.00	389.53	402.65	3.26
3	593.00	365.71	378.11	3.28
4	507.00	267.33	276.63	3.36
5	670.00	466.86	482.30	3.20
Average	590.40	365.46	377.82	3.38
COV (%)	10.09	19.94	19.89