Pick yer brains - Strength of Aluminum plate

[Tiggy_dorset]

A shallow ramp 1000 x 1000 x 63mm rise.
3mm Aluminium checker plate
3x 3mm stiffeners 200mm apart (plus the 2 sides)

I feel confident with 500kg pallet truck running up it, but 1000kg?

Any thoughts?
cheers.

 

[Brad93]

Nope. Id definitely go up to 6mm.

That 5754 chequer plate and I presume 6082 bar really suffer from strength loss in the HAZ.

 

[knighty]

does it all need to be aluminium?

run a sheet of something else under the ali?

I gave away a ramp that was 1200x1200 and probably 100mm rise, it was 6mm mild with 3mm ali ontop, guy I gave it to drives a 4.5ton forklift up and down it all day long and there's no bend/dip in it at all

 

[Tiggy_dorset]

We were considering ali for weight benefits, but we have now decided to go for steel instead.

Thanks for both your input guys.