Thermography as a non-Destructive method in the evaluation of Oak and Beech wood density

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Majdabadi Farahani P.; ROOHNIA M.; LASHGARI A.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: Iranian Journal of Wood and Paper Science Research Year:2019 | Volume:34 | Issue:1 (66) Page(s): 89-99

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Information Journal Paper

Title

Thermography as a non-Destructive method in the evaluation of Oak and Beech wood density

Author(s)

Majdabadi Farahani P. | ROOHNIA M. | LASHGARI A. | Issue Writer Certificate

Keywords

Non-destructive testingQ1

thermographyQ1

temperature droppingQ1

shape factorQ1

densityQ2

maximum temperatureQ1

Abstract

This study deals with the possibility of evaluation and estimation of the wood density of Oak (Quercus castaneifolia) and Beech (Fagus orientalis) wood. First, wood samples were prepared and cut in 4×20×30 cm (thickness×width×length). Then their density was calculated after 72 hours conditioning in an oven at 60° C temperature. In thermography process, the temporal temperature was monitored in 1 st th, 5, 10, 20, 30, 45 and 60 th minutes of cooling (monitoring steps). For investigating the effects of shape factor and dimension on thermographic density evaluation errors, the specimens were cut down two more steps to 3×20×30 cm and 2×15×20 cm and the course of thermography experiments was repeated. The relationships of shape factor, density and the ratio of density to the shape factor with the logarithmic cooling rate were evaluated separately. Results showed that density without considering the shape factor variations was not sufficiently correlated to the cooling rate. However, the ratios of the density to their proper shape factors were promising for the density evaluations from the cooling rates. Finally, it is suggested to revise this non-destructive method using a larger variety of the wood specimens and species.

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APA: Copy

Majdabadi Farahani, P., ROOHNIA, M., & LASHGARI, A.. (2019). Thermography as a non-Destructive method in the evaluation of Oak and Beech wood density. IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH, 34(1 (66) ), 89-99. SID. https://sid.ir/paper/396596/en

Vancouver: Copy

Majdabadi Farahani P., ROOHNIA M., LASHGARI A.. Thermography as a non-Destructive method in the evaluation of Oak and Beech wood density. IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH[Internet]. 2019;34(1 (66) ):89-99. Available from: https://sid.ir/paper/396596/en

IEEE: Copy

P. Majdabadi Farahani, M. ROOHNIA, and A. LASHGARI, “Thermography as a non-Destructive method in the evaluation of Oak and Beech wood density,” IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH, vol. 34, no. 1 (66) , pp. 89–99, 2019, [Online]. Available: https://sid.ir/paper/396596/en

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