Skip to Main Content
U.S. Forest Service
Caring for the land and serving people

United States Department of Agriculture

Home > Search > Publication Information

  1. Share via EmailShare on FacebookShare on LinkedInShare on Twitter
    Dislike this pubLike this pub
    Author(s): Guanghui Li; Xiping WangJan WiedenbeckRobert J. Ross
    Date: 2013
    Source: In: Gen. Tech. Rept. FPL-GTR-226. Madison, WI: U.S. Department of Agriculture, Forest Service, Forest Products Laboratory. p. 224-232.
    Publication Series: Full Proceedings
    Station: Forest Products Laboratory
    PDF: View PDF  (1.61 MB)

    Description

    In this study, we examined stress wave velocity patterns in the cross sections of black cherry trees, developed analytical models of stress wave velocity in sound healthy trees, and then tested the effectiveness of the models as a tool for tree decay diagnosis. Acoustic tomography data of the tree cross sections were collected from 12 black cherry trees at a production forest. Trees were subsequently cut, and the disk at each test location was obtained to assess the true physical condition. Stress wave velocity data of different paths across grain, from radial to tangential, were extracted from the acoustic tomography data sets. our analysis indicated that the ratio of tangential velocity to radial velocity in sound healthy trees approximated a second-order parabolic curve with respect to the symmetric axis θ = 0 (θ is the angle between wave propagation path and radial direction). The analytical model was found in excellent agreement with the real data from healthy trees. Further examination indicated that the analytical model can be used to diagnose internal conditions of trees when a stress wave testing method is used in tree inspection.

    Publication Notes

    • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Li, Guanghui; Wang, Xiping; Wiedenbeck, Jan; Ross, Robert J. 2013. Analysis of wave velocity patterns in black cherry trees and its effect on internal decay detection. In: Gen. Tech. Rept. FPL-GTR-226. Madison, WI: U.S. Department of Agriculture, Forest Service, Forest Products Laboratory. p. 224-232.

    Keywords

    stress wave, velocity pattern, trees, internal decay detection, tomography

    Related Search


    XML: View XML
Show More
Show Fewer
Jump to Top of Page
https://www.fs.usda.gov/treesearch/pubs/45112