Container compression test: Difference between revisions

Revision as of 16:01, 6 February 2013

Revision as of 14:50, 27 February 2013

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==Estimations==

Corrugated fiberboard can be evaluated by many material test methods including an [[Edge crush test|Edge Crush Test]] (ECT). There have been efforts to estimate the peak compression strength of a box (usually empty, regular singelwall slotted containers, top-to-bottom) based on various board properties. Some have involved [[finite element analysis]].<ref>{{cite journal |last=Urbanik|first=T J|authorlink= |coauthors= |year=1981 |month=July |title=Effect of paperboard stress strain characteristics on strength of singlewall corrugated boxes|journal=US Forest Products Laboratory Report|volume=401 |issue= |series=FPL|pages= |id=|url= |accessdate= |quote= }}</ref> One of the commonly referenced [[empirical]] estimations was puplishedpublished by [[Edge crush test|McKee]] in 1963.<ref>{{cite journal |last=McKee|first=R C|authorlink= |coauthors=Gander, Wachuta |year=1963 |month=August |title=Compression strength formula for corrugated boxes|journal=Paperboard Packaging |volume=48 |issue=8 |pages= |id=|url= |accessdate= |quote= }}</ref> This used the board ECT, the MD and CD flexural stiffness, the box perimeter, and the box depth. Simplifications have used a formula involving the board ECT, the board thickness, and the box perimeter. Most estimations do not relate well to other box orientations, box styles, or to filled boxes. [[Physical test]]ing of filled and closed boxes remains necessary.

==Dynamic Compression==