Finite Element Failure Analysis of GFRP Laminates in Plate-Cone Reticulated Shell

Table 3

Comparison of ultimate strength of laminated plates with different thicknesses.

Thickness of each layer	Total thickness (mm)	First layer strength Q1 (kN/m^2)	Last layer strength Q2 (kN/m^2)	Q2/Q1
[2 mm/2 mm] S	8	26.6	132.3	4.99
[1 mm/1 mm] S	4	14.0	76.8	5.48
[3 mm/1 mm] S	8	23.2	121.3	5.23
[1 mm/3 mm] S	8	28.8	134.0	4.66
[2 mm/1 mm] S	6	18.5	100.0	5.40
[1 mm/2 mm] S	6	21.7	108.5	5.01

Note: [3 mm/1 mm] _S indicates that the thickness of the first and fourth layers is 3 mm, and that of the second and third layers is 1 mm.