Behavior of Hybrid CFRP Laminated Thin-Walled Beams: Experimental, Numerical, and Analytical Evaluations

Table 3

Failure moment and load results for tested beams.

Case no.	Specimen	Failure^1 load (KN)	Failure moment (kN·m)	Failure mode
Group A	S-A-1	17.3	3.46	Delamination^2
	S-A-2	20.8	4.16	Delamination^2
	S-A-3	25	5	Delamination^2
Group B	S-B-1	24.6	2.46	Delamination^3
	S-B-2	26.64	2.66	Compression^4 buckling
	S-B-3	28	2.8	Delamination^3
	S-B-4	29	2.9	Compression^4 buckling

¹The total failure loads on the beam (cell load) which is equal to 2P. ²Delamination at the web-bottom flange junction. ³Delamination at the web-top flange junction led to the localized buckling of the web. ⁴The beam failed with a huge compression buckling of top flange.