Correlations between grain angle meter readings and bending properties of mill-run southern pine lumber

Guangmei Cao Anderson; Frank C. Owens; Frederico Franca; Robert J. Ross; Rubin Shmulsky

doi:10.13073/FPJ-D-20-00007

Correlations between grain angle meter readings and bending properties of mill-run southern pine lumber

Guangmei Cao Anderson
, Frank C. Owens
, Frederico Franca
, Robert J. Ross
, Rubin Shmulsky

Natural Resources Research Institute

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

Metriguard's grain angle meter (Model 511) measures grain angle in wood by assessing permittivity. This study evaluates the correlations between grain angle meter readings and bending properties of 1,400 kiln-dried 2 by 4 specimens of southern pine (Pinus spp.) lumber and considers its utility for providing supplementary data for predicting the strength of lumber. The results showed that in mill-run lumber, the correlation between grain angle and modulus of rupture (MOR) was -0.420. In addition, in graded lumber, the correlation between grain angle and MOR got progressively stronger as the grade went down. With a few technical modifications, applying this device in a mill production setting could prove useful for supplementing other nondestructive methods for assessing bending strength in lumber.

Original language	English (US)
Pages (from-to)	275-278
Number of pages	4
Journal	Forest Products Journal
Volume	70
Issue number	3
DOIs	https://doi.org/10.13073/FPJ-D-20-00007
State	Published - 2020

Bibliographical note

Funding Information:
Acknowledgments This research was made possible by funding from the USDA Forest Service Forest Products Laboratory under Agreement No. 17-JV-11111133-035. Any opinions, findings, conclusion, or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the view of the US Department of Agriculture. The authors wish to acknowledge and thank the Southern Pine Inspection Bureau for their gracious contributions to this research and Steve Verrill from the USDA Forest Products Laboratory for his valuable feedback throughout.

Funding Information:
This research was made possible by funding from the USDA Forest Service Forest Products Laboratory under Agreement No. 17-JV-11111133-035. Any opinions, findings, conclusion, or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the view of the US Department of Agriculture. The authors wish to acknowledge and thank the Southern Pine Inspection Bureau for their gracious contributions to this research and Steve Verrill from the USDA Forest Products Laboratory for his valuable feedback throughout.

Publisher Copyright:
© Forest Products Society 2020.

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title = "Correlations between grain angle meter readings and bending properties of mill-run southern pine lumber",

abstract = "Metriguard's grain angle meter (Model 511) measures grain angle in wood by assessing permittivity. This study evaluates the correlations between grain angle meter readings and bending properties of 1,400 kiln-dried 2 by 4 specimens of southern pine (Pinus spp.) lumber and considers its utility for providing supplementary data for predicting the strength of lumber. The results showed that in mill-run lumber, the correlation between grain angle and modulus of rupture (MOR) was -0.420. In addition, in graded lumber, the correlation between grain angle and MOR got progressively stronger as the grade went down. With a few technical modifications, applying this device in a mill production setting could prove useful for supplementing other nondestructive methods for assessing bending strength in lumber.",

author = "Anderson, \{Guangmei Cao\} and Owens, \{Frank C.\} and Frederico Franca and Ross, \{Robert J.\} and Rubin Shmulsky",

note = "Funding Information: Acknowledgments This research was made possible by funding from the USDA Forest Service Forest Products Laboratory under Agreement No. 17-JV-11111133-035. Any opinions, findings, conclusion, or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the view of the US Department of Agriculture. The authors wish to acknowledge and thank the Southern Pine Inspection Bureau for their gracious contributions to this research and Steve Verrill from the USDA Forest Products Laboratory for his valuable feedback throughout. Funding Information: This research was made possible by funding from the USDA Forest Service Forest Products Laboratory under Agreement No. 17-JV-11111133-035. Any opinions, findings, conclusion, or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the view of the US Department of Agriculture. The authors wish to acknowledge and thank the Southern Pine Inspection Bureau for their gracious contributions to this research and Steve Verrill from the USDA Forest Products Laboratory for his valuable feedback throughout. Publisher Copyright: {\textcopyright} Forest Products Society 2020.",

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AU - Owens, Frank C.

AU - Franca, Frederico

AU - Ross, Robert J.

AU - Shmulsky, Rubin

N1 - Funding Information: Acknowledgments This research was made possible by funding from the USDA Forest Service Forest Products Laboratory under Agreement No. 17-JV-11111133-035. Any opinions, findings, conclusion, or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the view of the US Department of Agriculture. The authors wish to acknowledge and thank the Southern Pine Inspection Bureau for their gracious contributions to this research and Steve Verrill from the USDA Forest Products Laboratory for his valuable feedback throughout. Funding Information: This research was made possible by funding from the USDA Forest Service Forest Products Laboratory under Agreement No. 17-JV-11111133-035. Any opinions, findings, conclusion, or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the view of the US Department of Agriculture. The authors wish to acknowledge and thank the Southern Pine Inspection Bureau for their gracious contributions to this research and Steve Verrill from the USDA Forest Products Laboratory for his valuable feedback throughout. Publisher Copyright: © Forest Products Society 2020.

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Y1 - 2020

N2 - Metriguard's grain angle meter (Model 511) measures grain angle in wood by assessing permittivity. This study evaluates the correlations between grain angle meter readings and bending properties of 1,400 kiln-dried 2 by 4 specimens of southern pine (Pinus spp.) lumber and considers its utility for providing supplementary data for predicting the strength of lumber. The results showed that in mill-run lumber, the correlation between grain angle and modulus of rupture (MOR) was -0.420. In addition, in graded lumber, the correlation between grain angle and MOR got progressively stronger as the grade went down. With a few technical modifications, applying this device in a mill production setting could prove useful for supplementing other nondestructive methods for assessing bending strength in lumber.

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Correlations between grain angle meter readings and bending properties of mill-run southern pine lumber

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