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Swelling pressure of wood determined from hygro-mechanical creep measurements

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Krauss A.

Electronic Journal of Polish Agricultural Universities. Series Wood Technology

2004

tom 07

nr 2

Swelling pressure in longitudinal direction has been determined on the basis of the time dependence of intensity of hygro-mechanical creep on the stretching, by the method of Moliński and Raczkowski [11]. The external stress needed for total inhibition of unidirectional spruce wood longitudinal swelling has been established. The maximum value of the swelling pressure determined on the basis of hygro-mechanical deformations of spruce wood samples simultaneously subjected to stretching in longitudinal direction and moistening is 14.4 MPa which is by 60% higher than the corresponding value found by the direct method of swelling inhibition for spruce wood sample of the same density.

Ograniczanie wyników

1 Electronic Journal of Polish Agricultural Universities. Series Wood Technology

1 Krauss A.

1 2004

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Swelling pressure of wood determined from hygro-mechanical creep measurements