JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2007, Vol. 31 ›› Issue (01): 131-134.doi: 10.3969/j.jssn.1000-2006.2007.01.031

Previous Articles     Next Articles

Analyses of Dispersion Relations of Dynamic Elastic Modulus in the Wood Materials

YU Guan-xia, RUAN Xi-gen   

  1. College of Information Science and Technology Nanjing Forestry University, Nanjing 210037, China
  • Online:2007-02-18 Published:2007-02-18

Abstract: This paper deals with the method of stress wave to measure the elastic modulus, loss modulus and their dispersion relationships against frequency of materials. By means of modulus measurements of two kinds of timber, when the frequency of vibration is higher than the base frequency, the elastic modulus is increased with frequencies; but the loss modulus decreases with frequencies.

CLC Number: