The shape of the cells, in a hexagonal honeycomb structure was found, in tests at the Forest Products Laboratory, to be an important factor in determining the compressive strength of the structure parallel to the flutes.nFrom the results obtained with 35 test specimens of untreated 50 pound kraft paper, a family of curves was obtained by means of which it is possible to estimate the specific compressive strength of such honey comb structures within the range of the test data. These curves apply only when the cell walls buckle at stresses less than the compressive strength of. the material.
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