dc.creator | KAUMAN,W. G | |
dc.date | 2002-01-01 | |
dc.date.accessioned | 2019-04-25T12:43:50Z | |
dc.date.available | 2019-04-25T12:43:50Z | |
dc.identifier | https://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0718-221X2002000100007 | |
dc.identifier.uri | http://revistaschilenas.uchile.cl/handle/2250/61373 | |
dc.description | Total collapse is considered as the sum of "liquid tension collapse" and "stress collapse". An equation is derived giving total collapse as a linear function of wood temperature and, to a smaller extent, of collapse-free shrinkage. The parameters of the equation depend only on surface tension data and on structural and rheological properties of the wood. To test the theory, Eucalyptus regnans cubes of 7/8 in. edge length were dried at temperatures ranging from 70 to 285°F, using two levels of humidity at each temperature. In addition, specimens measuring 7/8 by 7/8 by 3 in. were dried at 150°F and low humidity. The results show good agreement with theoretical values for wood temperatures up to about 190°F. For higher temperatures or very low humidities collapse is found to be significantly time-dependent. Collapse in small end-sealed cubes is shown to be of the same order as that in the thickness of boards of rectangular cross section, but the latter collapse less in width | |
dc.format | text/html | |
dc.language | en | |
dc.publisher | Universidad del Bío-Bío | |
dc.relation | 10.4067/S0718-221X2002000100007 | |
dc.rights | info:eu-repo/semantics/openAccess | |
dc.source | Maderas. Ciencia y tecnología v.4 n.1 2002 | |
dc.title | CONTRIBUTION TO THE THEORY OF CELL COLLAPSE IN WOOD: INVESTIGATIONS WITH EUCALYPTUS REGNANS | |