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Title: Determining shear modulus of thin wood composite materials using a cantilever beam vibration method

Source: Construction and Building Materials,Vol. 121. pp. 285-289

Author(s)Guan, Cheng; Zhang, Houjiang; Hunt, John F.; Yan, Haicheng

Publication Year: 2016  View PDF »

Category: Journal Articles
Associated Research Project(s):   FPL-4706-2B

Abstract: Shear modulus (G) of thin wood composite materials is one of several important indicators that characterizes mechanical properties. However, there is not an easy method to obtain this value. This study presents the use of a newly developed cantilever beam free vibration test apparatus to detect in-plane G of thin wood composite materials by measuring the first order free vibration cantilever specimens and its logarithmic decrement of vibration. Six sets of commercially purchased thin wood composite materials having three different fiber types were tested. A significant linear correlation was found between inplane G and bending modulus of elasticity (MOE) from cantilever-beam free vibration test and MOE was shown to be approximately two times of in-plane G. This was in full agreement with previous findings by other researchers. The study demonstrated that the cantilever beam free vibration method could be widely used to obtain in-plane G easily for thin wood composite materials.

Keywords: Thin wood composite materials; Cantilever beam free vibration; In-plane shear modulus; Modulus of elasticity; Logarithmic decrement

Publication Review Process: Formally Refereed

File size: 648 kb(s)

Date posted: 09/26/2016

This publication is also viewable on Treesearch:  view
RITS Product ID: 81977
Current FPL Scientist associated with this product
Hunt, John F.
Research General Engineer
  

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