Influence of the Harvesting Region on Batch Homogeneity of Ipe Wood (<i>Tabebuia</i> sp.) Based on Its Physical and Mechanical Properties
This paper aims to evaluate the hypothesis regarding the homogeneity of wood batches, as provided in the Brazilian standard for wooden structures ABNT NBR 7190 through an experimental study simulating the condition of a sawmill where the control of the harvest region, location of the sample in the t...
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MDPI AG
2022-08-01
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| Series: | Forests |
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| Online Access: | https://www.mdpi.com/1999-4907/13/9/1385 |
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| author | Herisson Ferreira dos Santos Matheus Henrique Morato de Moraes Ivanildo Amorim de Oliveira Ludmila de Freitas Vinícius Borges de Moura Aquino Isabella Silva Menezes Iuri Fazolin Fraga Francisco Antonio Rocco Lahr Fernando Júnior Resende Mascarenhas Fernando Menezes de Almeida Filho André Luis Christoforo |
| author_facet | Herisson Ferreira dos Santos Matheus Henrique Morato de Moraes Ivanildo Amorim de Oliveira Ludmila de Freitas Vinícius Borges de Moura Aquino Isabella Silva Menezes Iuri Fazolin Fraga Francisco Antonio Rocco Lahr Fernando Júnior Resende Mascarenhas Fernando Menezes de Almeida Filho André Luis Christoforo |
| author_sort | Herisson Ferreira dos Santos |
| collection | DOAJ |
| description | This paper aims to evaluate the hypothesis regarding the homogeneity of wood batches, as provided in the Brazilian standard for wooden structures ABNT NBR 7190 through an experimental study simulating the condition of a sawmill where the control of the harvest region, location of the sample in the trunk, edaphoclimatic condition, relief, and vegetation are variables that cannot be controlled. An experimental study was performed on 15 properties (3 physical and 12 mechanical) of Ipe (<i>Tabebuia</i> sp.) wood. Batches from three harvesting regions (Mucajaí [RR-A], Bonfim [RR-B], and Cláudia [MT]) were used to verify the existence of significant differences between the properties of the three areas. The properties were obtained following the test methods established in ABNT NBR 7190-3, with 540 specimens being manufactured and characterized, prior to being submitted to a statistical analysis, where ANOVA was applied with the Anderson–Darling normality test, the homogeneity of variance of multiple comparisons, and the Tukey test. Statistical analysis indicated that the wood harvesting regions showed significant differences in six (40%) and non-significant differences in nine (60%) of the fifteen properties evaluated. Among the properties evaluated, the compressive strength parallel to the grain (f<sub>c0</sub>) showed significant differences. This property is used to classify the wood strength class according to the Brazilian standard ABNT NBR 7190-1. The batches from the harvesting regions RR-A, RR-B, and MT were classified using the strength classes D60, D50, and D50, respectively. These results directly impact the consideration of the homogeneity of the batches, considering that the sawmills receive samples from different regions. For future research, a numerical method can be applied to consider the influence of the wood harvesting area. |
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| id | doaj.art-b6b5b2ebc70a4346bab0b88bf843fb0f |
| institution | Directory Open Access Journal |
| issn | 1999-4907 |
| language | English |
| last_indexed | 2024-03-10T00:01:38Z |
| publishDate | 2022-08-01 |
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| spelling | doaj.art-b6b5b2ebc70a4346bab0b88bf843fb0f2023-11-23T16:16:34ZengMDPI AGForests1999-49072022-08-01139138510.3390/f13091385Influence of the Harvesting Region on Batch Homogeneity of Ipe Wood (<i>Tabebuia</i> sp.) Based on Its Physical and Mechanical PropertiesHerisson Ferreira dos Santos0Matheus Henrique Morato de Moraes1Ivanildo Amorim de Oliveira2Ludmila de Freitas3Vinícius Borges de Moura Aquino4Isabella Silva Menezes5Iuri Fazolin Fraga6Francisco Antonio Rocco Lahr7Fernando Júnior Resende Mascarenhas8Fernando Menezes de Almeida Filho9André Luis Christoforo10Department of Engineering, Federal Institute of Rondonia, Ariquemes 76870-000, Rondonia, BrazilDepartment of Civil Engineering, Federal University of Sao Carlos, Sao Carlos 13565-905, Sao Paulo, BrazilDepartment of Engineering, Federal Institute of Rondonia, Ariquemes 76870-000, Rondonia, BrazilDepartment of Engineering, Federal Institute of Rondonia, Ariquemes 76870-000, Rondonia, BrazilDepartment of Civil Engineering, Federal University of Sao Carlos, Sao Carlos 13565-905, Sao Paulo, BrazilDepartment of Civil Engineering, Federal University of Sao Carlos, Sao Carlos 13565-905, Sao Paulo, BrazilDepartment of Civil Engineering, Federal University of Sao Carlos, Sao Carlos 13565-905, Sao Paulo, BrazilSao Carlos Engineering School, University of Sao Paulo, Sao Carlos 13566-590, Sao Paulo, BrazilDepartment of Civil Engineering, Federal University of Sao Carlos, Sao Carlos 13565-905, Sao Paulo, BrazilDepartment of Civil Engineering, Federal University of Sao Carlos, Sao Carlos 13565-905, Sao Paulo, BrazilDepartment of Civil Engineering, Federal University of Sao Carlos, Sao Carlos 13565-905, Sao Paulo, BrazilThis paper aims to evaluate the hypothesis regarding the homogeneity of wood batches, as provided in the Brazilian standard for wooden structures ABNT NBR 7190 through an experimental study simulating the condition of a sawmill where the control of the harvest region, location of the sample in the trunk, edaphoclimatic condition, relief, and vegetation are variables that cannot be controlled. An experimental study was performed on 15 properties (3 physical and 12 mechanical) of Ipe (<i>Tabebuia</i> sp.) wood. Batches from three harvesting regions (Mucajaí [RR-A], Bonfim [RR-B], and Cláudia [MT]) were used to verify the existence of significant differences between the properties of the three areas. The properties were obtained following the test methods established in ABNT NBR 7190-3, with 540 specimens being manufactured and characterized, prior to being submitted to a statistical analysis, where ANOVA was applied with the Anderson–Darling normality test, the homogeneity of variance of multiple comparisons, and the Tukey test. Statistical analysis indicated that the wood harvesting regions showed significant differences in six (40%) and non-significant differences in nine (60%) of the fifteen properties evaluated. Among the properties evaluated, the compressive strength parallel to the grain (f<sub>c0</sub>) showed significant differences. This property is used to classify the wood strength class according to the Brazilian standard ABNT NBR 7190-1. The batches from the harvesting regions RR-A, RR-B, and MT were classified using the strength classes D60, D50, and D50, respectively. These results directly impact the consideration of the homogeneity of the batches, considering that the sawmills receive samples from different regions. For future research, a numerical method can be applied to consider the influence of the wood harvesting area.https://www.mdpi.com/1999-4907/13/9/1385woodharvesting region<i>Tabebuia</i> sp.physical propertymechanical property |
| spellingShingle | Herisson Ferreira dos Santos Matheus Henrique Morato de Moraes Ivanildo Amorim de Oliveira Ludmila de Freitas Vinícius Borges de Moura Aquino Isabella Silva Menezes Iuri Fazolin Fraga Francisco Antonio Rocco Lahr Fernando Júnior Resende Mascarenhas Fernando Menezes de Almeida Filho André Luis Christoforo Influence of the Harvesting Region on Batch Homogeneity of Ipe Wood (<i>Tabebuia</i> sp.) Based on Its Physical and Mechanical Properties Forests wood harvesting region <i>Tabebuia</i> sp. physical property mechanical property |
| title | Influence of the Harvesting Region on Batch Homogeneity of Ipe Wood (<i>Tabebuia</i> sp.) Based on Its Physical and Mechanical Properties |
| title_full | Influence of the Harvesting Region on Batch Homogeneity of Ipe Wood (<i>Tabebuia</i> sp.) Based on Its Physical and Mechanical Properties |
| title_fullStr | Influence of the Harvesting Region on Batch Homogeneity of Ipe Wood (<i>Tabebuia</i> sp.) Based on Its Physical and Mechanical Properties |
| title_full_unstemmed | Influence of the Harvesting Region on Batch Homogeneity of Ipe Wood (<i>Tabebuia</i> sp.) Based on Its Physical and Mechanical Properties |
| title_short | Influence of the Harvesting Region on Batch Homogeneity of Ipe Wood (<i>Tabebuia</i> sp.) Based on Its Physical and Mechanical Properties |
| title_sort | influence of the harvesting region on batch homogeneity of ipe wood i tabebuia i sp based on its physical and mechanical properties |
| topic | wood harvesting region <i>Tabebuia</i> sp. physical property mechanical property |
| url | https://www.mdpi.com/1999-4907/13/9/1385 |
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