Status:Closed Asked:May 23, 2013 - 01:55 PM
formula of bursting strength of corrugated boxes ?
I can't imagine you'll find anything on this because liner mullen is affected by so many paper characteristics that the formula would be enormous. However, specifically for mullen grades of linerboard (that usually means virgin fibre), you can make some pretty good guesses: A 42 lbs/msf (205 g/m2) liner should provide 100 psi. So, an old school construction of 42 (26) 42 gets you 200 psi (ignore the medium). If you are dealing with a recycled Ring Crush grade and/or high-performance liner, make your way to the lab for testing. Mullen can be easy to calculate but hard to test for some double- and triple-wall constructions becase you'll experience double or triple pops during testing.
This value is normally provided by the corrugated supplier as it is a function of recycled vs. virgin fiber content, board gauge/calendaring, and corrugator consistency across the web. There are formulas commonly available for the more modern ECT & top-to-bottom compression spec methods. Burst is a different measure than ECT or T-B so they do not readily correlate.
Busting Strength(Kg/cm2)= Bust Factor(B.F)*GSM(Gm/m2)/1000
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