PROPRIEDADES FÍSICAS E MECÂNICAS DA MADEIRA DE Toona ciliata EM DIFERENTES IDADES

Braz, Rafael Leite; Oliveira, José Tarcísio da Silva; Arantes, Marina Donária Chaves; Rodrigues, Brunela Pollastrelli

doi:10.5380/rf.v43i4.30559

Cited by 23 publications

(24 citation statements)

References 7 publications

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“…The obtained f c0 value for the Erisma uncinatum Warm wood is very close to the value obtained for Paricá wood (24 MPa) [2], Toona ciliata (27MPa) [11] and Eucalyptus benthamii Maiden et Cambage (37.34MPa) [12]. According to the study of Institute for Technological Research (Instituto de Pesquisas Tecnológicas -IPT) [7], such timbers can be used in the manufacture of doors, shutters, slats, gaskets, ceilings, scaffolding, formwork, furniture, among other utilities.…”

Section: Resultssupporting

confidence: 84%

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Full Characterization of Erisma uncinatum Warm Wood Specie

Lahr¹,

Arroyo²,

Almeida³

et al. 2016

ijme

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Wood is a material that for years has been used by man for a variety of purposes, particularly in rural and civil constructions. For the possibility of shortages of some wood species, the characterization of other little known species as alternatives is necessary. This research aimed to determine, with the aid of the Brazilian standard NBR 7190, physical and mechanical properties of Cambará rosa or Cedrinho wood (Erisma uncinatum Warm), and with the support of regression models (linear, exponential, geometric, logarithmic) based on analysis of variance (ANOVA), to estimate the values of strength and stiffness as a function of apparent density, for the density being a property of easy determination. Were obtained 12 determinations by physical and mechanical propertie, resulting in 204 experimental results. The mechanical properties of Erisma uncinatum Warm presented performance compatible with other species used in civil construction, but not being considered a high strength wood. By means of regression models to estimate the strength and stiffness values, it was found that no property can be estimated by the apparent density.

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Section: Resultssupporting

confidence: 84%

“…The softwoods, such as Toona ciliata [11], Paricá [6] and Gallesia integrifólia [16] presents density value range between 0.318 g/cm³ and 0.370 g/cm³.…”

Section: Resultsmentioning

confidence: 99%

Full Characterization of Erisma uncinatum Warm Wood Specie

Lahr¹,

Arroyo²,

Almeida³

et al. 2016

ijme

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“…The average compressive strength parallel to the grain (f c,0k ) was 78 MPa, close to the result obtained by Grobério and Lahr (77.5 MPa) [12] with the same wood specie and higher when compared with Mimosa tenuiflora (58.25 MPa) [13], Mimosa schomburgkii (64.7 MPa) [4], Toona ciliata (27 MPa) [14], Eucalyptus camaldulensis (25.3 MPa) [15] e Eucalyptus benthamii (37.34 MPa) [16].…”

Section: Resultssupporting

confidence: 86%

Determination of Physical and Mechanical Properties of Wood Specie Dinizia excelsa Ducke

Couto¹,

Aquino²,

Almeida³

et al. 2018

ijme

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Wood is a material, when compared with other materials applied in civil construction, displays several advantages such an elevated mechanical strength when related with its apparent density. The wood manufacturing industry has great representativeness in the Brazilian economy however, the irrational consumption of determined species brought damages to the forest, causing extinction of some species and consequently, rising wood prices in market. The characterization of unknown wood species presents an alternative for a more rational exploration and expand wood use in structural purpose, enabling the use of this species determining its properties. The study aimed to characterize 3 physical properties and 12 mechanical properties of Angelim vermelho (Dinizia excelsa Ducke.) based on Brazilian Standard ABNT NBR 7190. Twelve models were used for each test, totalizing 180 experimental results. The analysis of variance (ANOVA) handling the regression models will be used to predict the strength and stiffness as function of apparent density. The results presented on tests demonstrated compatible performance with common wood species used in civil construction, considered high strength wood and with adequate use in this activity. According the regression models, only three properties were considered significant with apparent density estimation.

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“…(Freitas et al, 2015), Pinus and Teca (Almeida et al, 2014), Cedrela fissilis, Clonal hybrids and Hovenia dulcis (Motta et al, 2014), ranging from 0.478 to 0.577 g/cm³. Light wood, such as Toona ciliata (Braz et al, 2013), Paricá (Almeida et al, 2013) and Gallesia integrifólia (Motta et al, 2014) have a density varying between 0.318 g/cm³ and 0.370 g/cm³.…”

Section: Resultsmentioning

confidence: 99%

Full Characterization of Calycophyllum Multiflorum Wood Specie

et al. 2017

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Wood is a material that for years has been used by man for a variety of purposes, particularly in rural and civil constructions and furniture industry. The possibility of shortages of some wood species, the characterization of other unfamiliar species is an alternative source for use in civil and rural construction. This study aimed to determine, with the aid of Brazilian standard NBR 7190, physical and mechanical properties of Castelo (Calycophyllum multiflorum) wood specie. Twelve determinations were obtained by property, totaling 204 experimental values. In the characterization of wood, regression models were used to estimate the values of timber strength and stiffness as a function of apparent density, being density the physical property more simple to be obtained. The results of mechanical properties showed consistent with the performance of other species used in construction, which highlights the potential use of the Castelo wood in structural design. Regression models, apparent density was considered significant in the estimation of only 4 among the 14 properties for wood strength and stiffness.

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PROPRIEDADES FÍSICAS E MECÂNICAS DA MADEIRA DE Toona ciliata EM DIFERENTES IDADES

Cited by 23 publications

References 7 publications

Full Characterization of Erisma uncinatum Warm Wood Specie

Full Characterization of Erisma uncinatum Warm Wood Specie

Determination of Physical and Mechanical Properties of Wood Specie Dinizia excelsa Ducke

Full Characterization of Calycophyllum Multiflorum Wood Specie

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