Fatigue Properties of Three Particleboards in Tension and Interlaminar Shear

The fatigue properties of two commercial and one laboratory-made boards were determined in tension parallel to surface and interlaminar shear. Maximum repeated stress was a predetermined percentage of the static strength, and minimum stress was 10 percent of the maximum stress. Ten different maximum stress levels were used, 90 percent to 45 percent in 5 percent increments. At 10 million cycles of repeated stress, the fatigue strength of the three particleboards was about 45 percent of the static tensile strength and about 42 percent of the static interlaminar shear strength. There were no appreciable differences in the fatigue characteristics of the different boards.

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