Elastic constants of Chilean Pinus radiata using ultrasound

Abstract: In general, data regarding the mechanical properties of wood is still incomplete, mainly owing to the difficulties involved in preparing well-made standard testing samples, as well as the time-consuming evaluation tests. Therefore, the elastic constants for Pinus radiata in this paper were...

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Autores principales:	Baradit1,Erik, Fuentealba,Cecilia, Yáñez,Miguel
Lenguaje:	English
Publicado:	Universidad del Bío-Bío 2021
Materias:	Elastic constant nondestructive evaluation Pinus radiata Poisson’s ratio shear rate ultrasound wave propagation.
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2021000100427
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spelling	oai:scielo:S0718-221X20210001004272021-05-30Elastic constants of Chilean Pinus radiata using ultrasoundBaradit1,ErikFuentealba,CeciliaYáñez,Miguel Elastic constant nondestructive evaluation Pinus radiata Poisson’s ratio shear rate ultrasound wave propagation. Abstract: In general, data regarding the mechanical properties of wood is still incomplete, mainly owing to the difficulties involved in preparing well-made standard testing samples, as well as the time-consuming evaluation tests. Therefore, the elastic constants for Pinus radiata in this paper were determined using ultrasound technology. In parallel, typical compression mechanical testing was carried out to compare the effectiveness of the nondestructive test using the ultrasound. The longitudinal elastic constant values were similar to the mechanical testing (ultrasound was 12,8 % higher than mechanical testing), showing that ultrasound technique is a reliable and valid tool. The values for radial and tangential moduli obtained by the ultrasound versus mechanical testing showed statistically significant differences. This may be due to the difficulty in obtaining adequate samples for mechanical testing. The symmetry of the shear modulus was revealed by the ultrasound technique (Gij = Gji). Poisson’s ratios were not comparable using either method; however, values obtained were more consistent with the existing literature for Pinus species. Additionally, the elastic anisotropy of the analyzed wood samples was demonstrated through the ultrasound velocity propagation in the material. It was thus possible to obtain the twelve engineering constants that characterize the mechanical behavior of wood employing of the proposed ultrasound technique. The results proved that this technique could be a useful tool for such characterization.info:eu-repo/semantics/openAccessUniversidad del Bío-BíoMaderas. Ciencia y tecnología v.23 20212021-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2021000100427en10.4067/s0718-221x2021000100427
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Elastic constant nondestructive evaluation Pinus radiata Poisson’s ratio shear rate ultrasound wave propagation.
spellingShingle	Elastic constant nondestructive evaluation Pinus radiata Poisson’s ratio shear rate ultrasound wave propagation. Baradit1,Erik Fuentealba,Cecilia Yáñez,Miguel Elastic constants of Chilean Pinus radiata using ultrasound
description	Abstract: In general, data regarding the mechanical properties of wood is still incomplete, mainly owing to the difficulties involved in preparing well-made standard testing samples, as well as the time-consuming evaluation tests. Therefore, the elastic constants for Pinus radiata in this paper were determined using ultrasound technology. In parallel, typical compression mechanical testing was carried out to compare the effectiveness of the nondestructive test using the ultrasound. The longitudinal elastic constant values were similar to the mechanical testing (ultrasound was 12,8 % higher than mechanical testing), showing that ultrasound technique is a reliable and valid tool. The values for radial and tangential moduli obtained by the ultrasound versus mechanical testing showed statistically significant differences. This may be due to the difficulty in obtaining adequate samples for mechanical testing. The symmetry of the shear modulus was revealed by the ultrasound technique (Gij = Gji). Poisson’s ratios were not comparable using either method; however, values obtained were more consistent with the existing literature for Pinus species. Additionally, the elastic anisotropy of the analyzed wood samples was demonstrated through the ultrasound velocity propagation in the material. It was thus possible to obtain the twelve engineering constants that characterize the mechanical behavior of wood employing of the proposed ultrasound technique. The results proved that this technique could be a useful tool for such characterization.
author	Baradit1,Erik Fuentealba,Cecilia Yáñez,Miguel
author_facet	Baradit1,Erik Fuentealba,Cecilia Yáñez,Miguel
author_sort	Baradit1,Erik
title	Elastic constants of Chilean Pinus radiata using ultrasound
title_short	Elastic constants of Chilean Pinus radiata using ultrasound
title_full	Elastic constants of Chilean Pinus radiata using ultrasound
title_fullStr	Elastic constants of Chilean Pinus radiata using ultrasound
title_full_unstemmed	Elastic constants of Chilean Pinus radiata using ultrasound
title_sort	elastic constants of chilean pinus radiata using ultrasound
publisher	Universidad del Bío-Bío
publishDate	2021
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2021000100427
work_keys_str_mv	AT baradit1erik elasticconstantsofchileanpinusradiatausingultrasound AT fuentealbacecilia elasticconstantsofchileanpinusradiatausingultrasound AT yanezmiguel elasticconstantsofchileanpinusradiatausingultrasound
_version_	1714202701464600576

Elastic constants of Chilean Pinus radiata using ultrasound

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