Max load on inclined interlayer of easel

[moonfifty]

TL;DR Summary

how many pack the interlayer can support on an easel inclined

Hello,
I hope I'm in the right topic.
I search to know, how many pack the red interlayer on the drawing can support on an easel inclined of 4°.
One pack (blue in the drawing) = 2500kg
There can be max 20 pack of 2500 kg by side of the easel = 50000 kg
One pack measures : 3200x2250x140 mm
Interlayers are in polypro with section of 80x30 mm (see interlayer properties in attachment)
We have 4 interlayers for each pack.
Thank you in advance for your help.

 

[berkeman]

Welcome to the PF.

Yikes, that's heavy stuff! What happens if the supports fail? What does the load end up hitting when it falls?

 

[moonfifty]

Hello Berkeman, thanks for the reply.
The easel is in steel and it is certified for this load for the 2 sides.
The question is on the red interlayer, if it fails, the last end pack in blue will be damaged. We had cardboard interlayer and it happened.
I want to make sure that in polypro there will be no more problem and know the maximum number of packs that it will support.

 

[Tom.G]

If I understand the question you are asking for the total force on the Red interlayer, the easy answer is 19/20 (95%) of the force on the easel.

Force on easel = 50000kg × Sin(4°) = 50000 × 0.07 = 3500kg
3500kg × 0.95 = 3325kg force on pack 20 by the 19 packs to the left.

I hope this helps. I do not understand the table you included, maybe others here will have a better answer.

Remember that the forces are when the package is not moved. If it shipped or handled roughly the forces could be several times higher.

Cheers,
Tom

 

[moonfifty]

thanks for the reply.
If I understand well the interlayer must resist to 3325 kg.
How calculate if with the 0.8 MPa of compressive strength, the interlayer resist ?