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Title: Estimating lumber properties with acoustic-based technologies—Part 1: Modeling acoustic (stress) wave behavior in clear wood and lumber

Source: Wood and Fiber Science

Author(s)Senalik, Christopher Adam; França, F. J. N.; Seale, R. D.; Ross, Robert J.; Shmulsky, R.

Publication Year: 2020  View PDF »

Category: Journal Articles
Associated Research Project(s):   FPL-4714-1B

Abstract: This research article summarizes results from Part 1 of a study designed to examine using advanced signal processing techniques with acoustic-based lumber assessment technologies to evaluate the MOE, ultimate tension stress (UTS), and MOR of structural lumber. In Part 1 of this research article, a mathematical model of acoustic wave behavior in an idealized specimen is derived using fundamental mechanics. Published information on the physical and mechanical properties of clear, defect-free wood is input into the model to examine acoustic wave behavior. Wave behavior is then examined experimentally in a series of wood specimens. Observed wave behavior in the clear wood specimens, in both time and frequency domains, closely resembles idealized wave behavior. In Part 2 of this research article, predictions from the model are used to improve estimation of the UTS of wood specimens.

Keywords: Wave model; frequency; clear wood; lumber; modulus of elasticity

Publication Review Process: Formally Refereed

File size: 1,024 kb(s)

Date posted: 09/02/2021

This publication is also viewable on Treesearch:  view
RITS Product ID: 10232
Current FPL Scientists associated with this product (listed alphabetically)
Ross, Robert J.
Supervisory Research Gen. Engineer
Senalik, Christopher
Research General Engineer
 

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