The Crushing Strength of Paper Honeycomb
Summary rept. 1 Apr 1970-31 Mar 1972
TEXAS UNIV AT AUSTIN ENGINEERING MECHANICS RESEARCH LAB
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The effects of entrapped air on the apparent crushing strength of paper honeycomb are studied. A definite increase in strength can be attributed to the compression of the entrapped air but the magnitude of the increase depends on a number of factors, such as, specimen dimensions, orientation of the glue lines with respect to the edges of the specimen, and the treatment, if any, of the cut edges of the test samples. Strength is increased if the glue lines are parallel to rather than perpendicular to the long edges of the rectangular specimens. Taping the edges which are perpendicular to the glue lines reduces blowout and increases compressive strength.
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