Relationship of wood MFA and density with elastic modulus

doi:10.3969/j.jssn.1000-2006.2009.04.024

JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2009, Vol. 33 ›› Issue (04): 113-116.doi: 10.3969/j.jssn.1000-2006.2009.04.024

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Relationship of wood MFA and density with elastic modulus

WU Yan1,2, ZHOU Dingguo1*, WANG Siqun1,2,ZHANG Yang1, XING Cheng2

1.College of Wood Science and Technology, Nanjing Forestry University, 210037; 2.Tennessee Forest Products Center, University of Tennessee, Knoxville, Tennessee, 37996, USA

Online:2009-08-18 Published:2009-08-18

Abstract

Abstract: The microfibril angle (MFA) and wood density of white oak (Quercus alba) and red oak (Quercus rubra) were measured by SilviScan system, the elastic modulus (MOE) being also calculated. The mean value of MOE in red oak (Quercus rubra) sample was 16.34 GPa higher than white oak (Quercus alba) sample (13.11 GPa). There was no significant difference of MOE in red oak from pith to bark. However, white oak sample showed high MOE and MFA for the first 40 mm, which probably corresponded to juvenile wood; from 40 mm position to bark direction the change was not distinct. The value of MFA was lower in red oak than in white oak along radial direction within the measured 45 growth rings.

CLC Number:

TS653

WU Yan1,2, ZHOU Dingguo1*, WANG Siqun1,2,ZHANG Yang1, XING Cheng2. Relationship of wood MFA and density with elastic modulus[J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2009, 33(04): 113-116.

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Relationship of wood MFA and density with elastic modulus

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