Estimation of the mechanical properties of wood from Eucalyptus urophylla using near infrared spectroscopy
Fuente:
Redalyc
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Artículo científico |
| Sprache: | en |
| Veröffentlicht: |
Universidade Federal de Lavras
2010
|
| Schlagworte: | |
| Online-Zugang: | |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| _version_ | 1876490609649254400 |
|---|---|
| author | Carlos Rogério Andrade |
| author_facet | Carlos Rogério Andrade |
| contents | Estimation of the mechanical properties of wood from Eucalyptus urophylla using near infrared spectroscopy Carlos Rogério Andrade Paulo Fernando Trugilho Alfredo Napoli Renato da Silva Vieira José Tarcísio Lima Leonardo Chagas de Sousa Agrociencias NIRS Eucalyptus characteristics Mechanical properties studies of wood usually involve destructive wood assessments, with time-consuming tests that use large amounts of resource (wood). Although this is not a limiting factor, it could be attenuated by the use of a nondestructive technique known as near infrared spectroscopy (NIRS). This technique has been applied to evaluate compounds containing C-H, N-H, S-H or O-H bonds, and involves quick analyses and can be applied to process control tasks. The objective of this work is to use the NIRS technique to obtain calibrations for mechanical properties of Eucalyptus sp. wood. A natural E. urophylla hybridat age 7 was used as obtained from V&M Florestal crops. Spectra were measured directly in solid wood (radial, tangential and transverse faces) and in ground wood, in diffuse reflectance mode, using a Bruker spectrometer in the 800 to 1,500 nm range. The NIRS technique proved suitable to estimate modulus of elasticity in solid wood, with values r=0.91 and RPD=2.6, and in ground wood, with values r=0.87 and RPD=2.0. Modulus of rupture and compressive strength presented r values below 0.9. First and second derivative pretreatments provided a slight increase in correlation values for the properties in question. Calibrations fordifferent plank faces did not present a defined variation pattern. Solid wood and ground wood presented similar correlation values for all properties. 2010 artículo científico 0104-7760 https://www.redalyc.org/articulo.oa?id=74421656005 en http://www.redalyc.org/revista.oa?id=744 CERNE application/pdf Universidade Federal de Lavras CERNE (Brasil) Num.3 Vol.16 |
| format | Artículo científico |
| id | redalyc_74421656005 |
| institution | Redalyc |
| language | en |
| publishDate | 2010 |
| publisher | Universidade Federal de Lavras |
| spellingShingle | Estimation of the mechanical properties of wood from Eucalyptus urophylla using near infrared spectroscopy Carlos Rogério Andrade Agrociencias NIRS Eucalyptus characteristics Estimation of the mechanical properties of wood from Eucalyptus urophylla using near infrared spectroscopy Carlos Rogério Andrade Paulo Fernando Trugilho Alfredo Napoli Renato da Silva Vieira José Tarcísio Lima Leonardo Chagas de Sousa Agrociencias NIRS Eucalyptus characteristics Mechanical properties studies of wood usually involve destructive wood assessments, with time-consuming tests that use large amounts of resource (wood). Although this is not a limiting factor, it could be attenuated by the use of a nondestructive technique known as near infrared spectroscopy (NIRS). This technique has been applied to evaluate compounds containing C-H, N-H, S-H or O-H bonds, and involves quick analyses and can be applied to process control tasks. The objective of this work is to use the NIRS technique to obtain calibrations for mechanical properties of Eucalyptus sp. wood. A natural E. urophylla hybridat age 7 was used as obtained from V&M Florestal crops. Spectra were measured directly in solid wood (radial, tangential and transverse faces) and in ground wood, in diffuse reflectance mode, using a Bruker spectrometer in the 800 to 1,500 nm range. The NIRS technique proved suitable to estimate modulus of elasticity in solid wood, with values r=0.91 and RPD=2.6, and in ground wood, with values r=0.87 and RPD=2.0. Modulus of rupture and compressive strength presented r values below 0.9. First and second derivative pretreatments provided a slight increase in correlation values for the properties in question. Calibrations fordifferent plank faces did not present a defined variation pattern. Solid wood and ground wood presented similar correlation values for all properties. 2010 artículo científico 0104-7760 https://www.redalyc.org/articulo.oa?id=74421656005 en http://www.redalyc.org/revista.oa?id=744 CERNE application/pdf Universidade Federal de Lavras CERNE (Brasil) Num.3 Vol.16 |
| title | Estimation of the mechanical properties of wood from Eucalyptus urophylla using near infrared spectroscopy |
| topic | Agrociencias NIRS Eucalyptus characteristics |
| url | https://www.redalyc.org/articulo.oa?id=74421656005 |