Mechanical Behavior of Sandwich Panels with Hybrid PU Foam Core

Table 4

Summary of the midspan deflection and ultimate bending strength of GHP specimens.

Specimen	Δb,pre (mm)	Δs,pre (mm)	Δpre (mm)	Δu (mm)	Δpre/Δu	Pu (kN)	Ppre (kN)	Ppre/Pu
GHP-CON	12.36	8.17	20.53	21.35	1.04	10.8	9.46	0.88
GHP-1-1	12.33	8.40	20.72	20.42	0.99	11.1	9.28	0.84
GHP-2-1	11.43	8.02	19.45	20.31	1.04	10.6	8.84	0.83
GHP-1-2	14.54	8.20	22.74	20.32	0.89	13.1	10.32	0.79
GHP-2-2	14.44	8.39	22.83	21.28	0.93	13.4	10.01	0.75
GHP-2-3	18.03	9.30	27.33	23.74	0.87	16.7	13.03	0.78