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The behaviour of particle board and hardboard beams during moisture cycling

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Summary

The effects of creep at constant conditions of moisture content and the effects of deformations occurring during cycling of moisture content have been studied in loaded beams of particleboard and hardboard. The variations in stiffness in loaded and unloaded beams of particleboard during moisture cycling were also determined. Contrary to the findings of some workers but in agreement with the findings of another, the increases in the deflections of loaded beams of particleboard during cycling of moisture content were due mainly to desorption of moisture. Qualitatively similar behaviour was found for particleboard, hardboard and wood but quantitatively the effects were greatest in particleboard and hardboard. It appears that the basic mechanism of the transient effects in bending, arising with the simultaneous action of load and change in moisture content, may be similar in wood, particleboard and hardboard.

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References

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Authors and Affiliations

  1. Division of Forest Products, CSIRO, South Melbourne

    L. D. Armstrong & P. U. A. Grossman

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  1. L. D. Armstrong
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  2. P. U. A. Grossman
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Armstrong, L.D., Grossman, P.U.A. The behaviour of particle board and hardboard beams during moisture cycling. Wood Science and Technology 6, 128–137 (1972). https://doi.org/10.1007/BF00350826

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  • DOI: https://doi.org/10.1007/BF00350826

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