Plot a bar chart for the embodied energies of metals and compare it with one for polymers, on a “per unit yield strength” basis, using CES. Create the function where H m is the embodied energy per kg,...

Plot a bar chart for the embodied energies of metals and compare it with one for polymers, on a “per unit yield strength” basis, using CES. Create the function

where H_m
is the embodied energy per kg, ρ is the density, and σy is the yield strength. Do this by using the “Advanced” facility in the Axis selection box to form

ðEmbodied energy DensityÞ=Yield strength ðelastic limitÞ

Which materials are attractive by this measure?