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Official Journal of the Japan Wood Research Society

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Analysis of creep of wood during water adsorption based on the excitation response theory

Abstract

The creep behavior of wood during water adsorption was mathematically analyzed based on the excitation response theory. The creep changeϕ u (t), obtained by subtracting an instantaneous complianceJ u (0) from a creep complianceJ u (t), was linear in terms of moisture content at a steady state of moisture and was separable into two functions of time and moisture content. The creep compliance, however, was nonlinear. The creep change during water adsorption was obtained by applying the excitation-response theory to the creep change in a steady state of moisture. The equation was formally equal to the results reported so far. By using the derived equations, it was theoretically proved that the change in creep compliance during water adsorption from moisture contentu0 tou1 is always greater than the difference between creep compliance atu0 and that at u, in the steady state.

References

  1. Grossman PUS (1976) Requirements for a model that exhibits mechano-sorptive behavior. Wood Sci Technol 10:163–168

    Article  Google Scholar 

  2. Nakano T (1996) A theoretical description of creep behavior during water desorption. Holzforschung 50:49–54

    Article  CAS  Google Scholar 

  3. Takemura T (1967) Plastic properties of wood in relation to the non-equilibrium states of moisture content. Mokuzai Gakkaishi 13:77–81

    Google Scholar 

  4. Leicester RH (1971) A rheological model for mechano-sorptive deflections of beam. Wood Sci Technol 5:211–220

    Article  Google Scholar 

  5. Takemura T, Hukuyama M, Haruna N (1961) Studies on relationship between creep and moisture content of wood. Bull Shimane Agric Coll 9(A-2):103–107

    Google Scholar 

  6. Suzuki Y (1949) Creep of wood as affected by moisture content. J Jpn For Soci 31:188–189

    Google Scholar 

  7. Kollmann FFP (1968) In: Principles of wood science and technology I. pp. 310

  8. Dart SL, Guth E (1946) Elastic properties of cork. I. J Appl Phys 17:314–318

    Article  Google Scholar 

  9. Guth E, Dart SL (1946) Elastic properties of cork. II. J Appl Phys 18:470–473

    Google Scholar 

  10. Kitahara K, Okabe S (1959) The influence of temperature on creep of wood by bending test. Mokuzai Gakkaishi 5:12–18

    Google Scholar 

  11. Hunt D (1979) A preliminary study of tensile creep of beech with concurrent moisture change ICM 3. 3:299–307

    Google Scholar 

  12. Norimoto M, Miyano H, Yamada T (1965) On the torsion creep of hinoki wood. Wood Res 34:37–44

    Google Scholar 

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Correspondence to T. Nakano.

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Nakano, T. Analysis of creep of wood during water adsorption based on the excitation response theory. J Wood Sci 45, 19–23 (1999). https://doi.org/10.1007/BF00579519

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  • DOI: https://doi.org/10.1007/BF00579519

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