Quantification of slip planes in the stem wood of Eucalyptus grandis
-
Jordão Cabral Moulin
and
José Tarcísio Lima
Abstract
The objective of this work was to analyze the natural occurrence of slip planes (SPs) in Eucalyptus grandis wood fibers in terms of their characterization, distribution in the stem and associations with other wood characteristics. A 28-year-old E. grandis was studied, whose stems were sampled in the base-top direction. The longitudinal compressive stress regions (LCompSR, in the inner part of the stem) and longitudinal tensile stress region (LTensSR, in the outer parts of the stem) were separately considered. The following parameters were measured: microfibril angle (MFA), slip plane angle (SPA), number of SPs per millimeter (SP mm−1), slip plane index (SPI) and the relative abundance of SP in the fiber. The SPAs differ only slightly between LCompSR (76°) and LTensSR (77°). The base of the stem, which supports a larger mass, contains the most SPs and the number of SPs decreases from the base to the top. In the LCompSR, the SPI reduction was from 21 to 8%, and in the LTensSR, from 18 to 7%.
Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
Research funding: The authors are grateful to CAPES and CNPq (Process 311574/2013-0) for the grants and financial support granted during this work.
Employment or leadership: None declared.
Honorarium: None declared.
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©2019 Walter de Gruyter GmbH, Berlin/Boston
Articles in the same Issue
- Frontmatter
- Editorials
- Editorial changes at Holzforschung
- Goodbye to Holzforschung
- Thanks to Oskar Faix
- Original Articles
- Orthotropic mechano-sorptive creep behavior of Chinese fir during the moisture adsorption process determined in tensile mode via dynamic mechanical analysis (DMA)
- Differences in the viscoelastic properties between earlywood and latewood in the growth rings of Chinese fir as analyzed by dynamic mechanical analysis (DMA) in the temperature range between −120°C and 120°C
- Failure conditions of solid wood on off-axis compression testing
- Effect of knots and holes on the modulus of elasticity prediction and mapping of sugi (Cryptomeria japonica) veneer using near-infrared hyperspectral imaging (NIR-HSI)
- Quantification of slip planes in the stem wood of Eucalyptus grandis
- DNA barcoding authentication for the wood of eight endangered Dalbergia timber species using machine learning approaches
- Chemical analysis and antioxidant activities of bark extracts from four endemic species of Hyrcanian forests in Iran
- Isolation of natural flavoring compounds from cooperage woods by pressurized hot water extraction (PHWE)
- Volatile organic compounds (VOCs) from lauan (Shorea ssp.) plyboard prepared with kraft lignin, soy flour, gluten meal and tannin: emissions during hot pressing and from panels as a function of time
- Plasma treatment of plastic film or decorative veneer and its effects on the peel strength and curling deformation of plastic film-reinforced pliable decorative sliced veneer (PR-RP-DSV)
Articles in the same Issue
- Frontmatter
- Editorials
- Editorial changes at Holzforschung
- Goodbye to Holzforschung
- Thanks to Oskar Faix
- Original Articles
- Orthotropic mechano-sorptive creep behavior of Chinese fir during the moisture adsorption process determined in tensile mode via dynamic mechanical analysis (DMA)
- Differences in the viscoelastic properties between earlywood and latewood in the growth rings of Chinese fir as analyzed by dynamic mechanical analysis (DMA) in the temperature range between −120°C and 120°C
- Failure conditions of solid wood on off-axis compression testing
- Effect of knots and holes on the modulus of elasticity prediction and mapping of sugi (Cryptomeria japonica) veneer using near-infrared hyperspectral imaging (NIR-HSI)
- Quantification of slip planes in the stem wood of Eucalyptus grandis
- DNA barcoding authentication for the wood of eight endangered Dalbergia timber species using machine learning approaches
- Chemical analysis and antioxidant activities of bark extracts from four endemic species of Hyrcanian forests in Iran
- Isolation of natural flavoring compounds from cooperage woods by pressurized hot water extraction (PHWE)
- Volatile organic compounds (VOCs) from lauan (Shorea ssp.) plyboard prepared with kraft lignin, soy flour, gluten meal and tannin: emissions during hot pressing and from panels as a function of time
- Plasma treatment of plastic film or decorative veneer and its effects on the peel strength and curling deformation of plastic film-reinforced pliable decorative sliced veneer (PR-RP-DSV)
