Crush load and such for cardboard boxes
Crush load and such for cardboard boxes
(OP)
We are looking at requirements to calculate how high the logistics folks can stack a variety of boxes/pallets in the warehouse.
Any Packaging engineers here or folks who could recommend an appropriate MIL-Spec or other documentation in the public domain?
thanks in advance.
Any Packaging engineers here or folks who could recommend an appropriate MIL-Spec or other documentation in the public domain?
thanks in advance.





RE: Crush load and such for cardboard boxes
http://www.everyspec.com/
can try your luck there
Comprehension is not understanding. Understanding is not wisdom. And it is wisdom that gives us the ability to apply what we know, to our real world situations
RE: Crush load and such for cardboard boxes
And I think the stacking thing may be done by testing??
Good luck. You got some weed things going on there, buckling, compression, bending, maybe tension, varying I's, etc.
Also, what is in the box? If it is some solid item that fits tight - that item might be carrying a lot of the load with cardboard acting as protection only.
Maybe a FEA analysis might get you close??
Good luck.
RE: Crush load and such for cardboard boxes
A shelf for everything and everything on it's shelf.
RE: Crush load and such for cardboard boxes
ASTM D3951
ASTM D4169
ASTM D1185
ASTM D4727 <--probably the one you're looking for
ASTM D5118 <--second one you probably should read
ASTM D6199
ASTM D6253
--Scott
http://www.wertel.pro
RE: Crush load and such for cardboard boxes
Some more background/detail. Our warehouse receives, stores, and ships many products to include those that my company is not the design authority. So my question is not in how to design a box. The boxes full of stuff show up with no input from me. The dilemma is; How does one apply a quantifiable and repeatable process that allows the floor worker to ascertain how many boxes/pallets can be stacked upon one another?
What I have found is that for the most part, corrugated containers are certified in accordance with National Motor Freight Classification, Item 222. As such the boxes come with stamps that either include ECT (edge crush test) or Burst test data. The good news is that ECT data is directly relatable to the compression strength of the container and calculating how many boxes can be stacked upon another is straight forward. For boxes that only have Burst test data, no direct correlation is available that I can find.
So the question is, Is there any formula or methodology others use to determine how high the boxes can be stacked before reaching and unsafe limit (related to compression/failure of the box)? Or does everyone just leave it up to the shipping/receiving Forman to say " that looks bout right".
Again thanks in advance.
RE: Crush load and such for cardboard boxes
Mike Halloran
Pembroke Pines, FL, USA
RE: Crush load and such for cardboard boxes
RE: Crush load and such for cardboard boxes
ZCP
www.phoenix-engineer.com