Plot aluminum alloys, steels, CFRP and GFRP onto a copy of the strength-density chart for natural materials of Figure 13.16 of Chapter 13, Hybrids: Case Studies, using the flexural strength index \(\sigma_{f}^{2 / 3} / ho\) (where \(\sigma_{f}\) is the failure stress) as criteria of excellence. The table lists the necessary data.

Data From Figure 13.16

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Material Density (kg/m) Strength, of (MPa) Aluminium alloy 2700 335 Steel 7850 700 CFRP 1550 760 GFRP 1850 182