Time/temperature equivalence in the dry wood creep response : Holzforschung Jump to ContentJump to Main Navigation
Show Summary Details

Holzforschung

International Journal of the Biology, Chemistry, Physics, and Technology of Wood

Editor-in-Chief: Faix, Oskar

Editorial Board Member: Daniel, Geoffrey / Militz, Holger / Rosenau, Thomas / Salmen, Lennart / Sixta, Herbert / Vuorinen, Tapani / Argyropoulos, Dimitris S. / Balakshin, Yu / Barnett, J. R. / Berry, Richard / Burgert, Ingo / Evans, Robert / Evtuguin, Dmitry V. / Frazier, Charles E. / Fukushima, Kazuhiko / Gellerstedt, Göran / Gindl-Altmutter, Wolfgang / Glasser, W. G. / Heitner, Cyril / Holmbom, Bjarne / Isogai, Akira / Kadla, John F. / Kleen, Marjatta / Koch, Gerald / Lachenal, Dominique / Mansfield, Shawn D. / Morrell, J.J. / Niemz, Peter / Pizzi, Antonio / Ragauskas, Arthur J. / Ralph, John / Rice, Robert W. / Salin, Jarl-Gunnar / Schmitt, Uwe / Schultz, Tor P. / Sipilä, Jussi / Tamminen, Tarja / Viikari, Liisa / Welling, Johannes / Willför, Stefan / Yoshihara, Hiroshi


IMPACT FACTOR increased in 2015: 1.711
5-year IMPACT FACTOR: 1.794
Rank 3 out of 21 in category Materials Science, Paper & Wood and 14 out of 66 in Forestry in the 2015 Thomson Reuters Journal Citation Report/Science Edition

SCImago Journal Rank (SJR) 2015: 0.817
Source Normalized Impact per Paper (SNIP) 2015: 0.954
Impact per Publication (IPP) 2015: 1.427

249,00 € / $374.00 / £187.00*

Online
ISSN
1437-434X
See all formats and pricing

 


Select Volume and Issue
Loading journal volume and issue information...

30,00 € / $42.00 / £23.00

Get Access to Full Text

Time/temperature equivalence in the dry wood creep response

Nanjian Sun1 / Charles E. Frazier2

1Wood Science and Forest Products, Wood-Based Composites Center, Virginia Tech, Blacksburg, VA, USA

2Wood Science and Forest Products, Wood-Based Composites Center, Virginia Tech, Blacksburg, VA, USA

Corresponding author. Wood Science and Forest Products, Wood-Based Composites Center, 230 Cheatham Hall, Virginia Tech, Blacksburg, VA 24061-0323, USA Fax: +1-540-231-8176,

Citation Information: Holzforschung. Volume 61, Issue 6, Pages 702–706, ISSN (Online) 1437434X, ISSN (Print) 00183830, DOI: 10.1515/HF.2007.114, November 2007

Publication History

Received:
2006-08-06
Accepted:
2007-07-12
Published Online:
2007-11-01

Abstract

Rheology of wood molecular and supramolecular organization has mostly been conducted with dynamic methods, and the application of time/temperature equivalence typically requires plasticizers to observe segmental relaxation. Dry wood rheology offers the experimental advantage of easy moisture control, but only weak secondary relaxations are observed with dynamic methods. Static methods allow for the longer relaxation times in glassy polymers, and these relaxations are strongly stimulated by lower less damaging temperatures. This study describes the application of creep mode time/temperature equivalence to dry yellow-poplar (Liriodendron tulipifera) and southern yellow pine (Pinus spp.). It was found that time/temperature equivalence was valid from 10–170°C, but only for specimens that received a prior 30-min thermal treatment (with minor desiccation) in the range of 100–170°C. The two woods exhibited clear differences in the temperature dependence of the dry wood creep relaxation, and in the sensitivity to free volume manipulation. These findings are believed to reflect polymer structural differences in hardwoods and softwoods indicating that creep mode time/temperature studies of dry wood may be useful for the analysis of xylem polymer behavior.

Keywords: creep; time/temperature equivalence; wood rheology

Citing Articles

Here you can find all Crossref-listed publications in which this article is cited. If you would like to receive automatic email messages as soon as this article is cited in other publications, simply activate the “Citation Alert” on the top of this page.

[1]
Sudip Chowdhury and Charles E. Frazier
Biomacromolecules, 2013, Volume 14, Number 4, Page 1166
[2]
Rahime Bag, Johnny Beaugrand, Patrice Dole, and Bernard Kurek
Journal of Wood Science, 2012, Volume 58, Number 6, Page 493

Comments (0)

Please log in or register to comment.