Sensitivity of several selected mechanical properties of moso bamboo to moisture content change under the fibre saturation point

The moisture dependence of different mechanical properties of bamboo has not been fully understood. In this work, the longitudinal tensile modulus, bending modulus, and compressive and shearing strength parallel to the grain were determined for bamboo of ages 0.5, 1.5, 2.5, and 4.5 years under diffe...

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Main Authors: Zehui Jiang, Hankun Wang, Genlin Tian, Xing’e Liu, Yan Yu
Format: Article
Language:English
Published: North Carolina State University 2012-11-01
Series:BioResources
Subjects:
Online Access:http://www.ncsu.edu/bioresources/BioRes_07/BioRes_07_4_5048_Jiang_WTLY_Sensitivity_Properties_Bamboo_Moisture_FSP_3081.pdf
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author Zehui Jiang
Hankun Wang
Genlin Tian
Xing’e Liu
Yan Yu
author_facet Zehui Jiang
Hankun Wang
Genlin Tian
Xing’e Liu
Yan Yu
author_sort Zehui Jiang
collection DOAJ
description The moisture dependence of different mechanical properties of bamboo has not been fully understood. In this work, the longitudinal tensile modulus, bending modulus, and compressive and shearing strength parallel to the grain were determined for bamboo of ages 0.5, 1.5, 2.5, and 4.5 years under different moisture contents (MC) to elucidate the sensitivity of different mechanical properties of bamboo to MC change. The results showed that the four mechanical properties of bamboo respond differently to MC changes. Compressive and shearing strength parallel to the grain were most sensitive to MC changes, followed by longitudinal tensile modulus, then bending modulus. This can be partially explained by the different responses of the three main components in the plant cell wall to MC change. For tensile modulus and bending modulus, the effect of bamboo age on the sensitivity to MC change was insignificant, while young bamboo (0.5 years old) was more sensitive to MC changes for shear strength and less sensitive for compression strength than older bamboo.
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spelling doaj.art-5292bc22ee2b424db6f8689eaeac1e522022-12-22T03:32:25ZengNorth Carolina State UniversityBioResources1930-21262012-11-017450485058Sensitivity of several selected mechanical properties of moso bamboo to moisture content change under the fibre saturation pointZehui JiangHankun WangGenlin TianXing’e LiuYan YuThe moisture dependence of different mechanical properties of bamboo has not been fully understood. In this work, the longitudinal tensile modulus, bending modulus, and compressive and shearing strength parallel to the grain were determined for bamboo of ages 0.5, 1.5, 2.5, and 4.5 years under different moisture contents (MC) to elucidate the sensitivity of different mechanical properties of bamboo to MC change. The results showed that the four mechanical properties of bamboo respond differently to MC changes. Compressive and shearing strength parallel to the grain were most sensitive to MC changes, followed by longitudinal tensile modulus, then bending modulus. This can be partially explained by the different responses of the three main components in the plant cell wall to MC change. For tensile modulus and bending modulus, the effect of bamboo age on the sensitivity to MC change was insignificant, while young bamboo (0.5 years old) was more sensitive to MC changes for shear strength and less sensitive for compression strength than older bamboo.http://www.ncsu.edu/bioresources/BioRes_07/BioRes_07_4_5048_Jiang_WTLY_Sensitivity_Properties_Bamboo_Moisture_FSP_3081.pdfBambooMechanical propertiesMoisture dependenceSpecific density
spellingShingle Zehui Jiang
Hankun Wang
Genlin Tian
Xing’e Liu
Yan Yu
Sensitivity of several selected mechanical properties of moso bamboo to moisture content change under the fibre saturation point
BioResources
Bamboo
Mechanical properties
Moisture dependence
Specific density
title Sensitivity of several selected mechanical properties of moso bamboo to moisture content change under the fibre saturation point
title_full Sensitivity of several selected mechanical properties of moso bamboo to moisture content change under the fibre saturation point
title_fullStr Sensitivity of several selected mechanical properties of moso bamboo to moisture content change under the fibre saturation point
title_full_unstemmed Sensitivity of several selected mechanical properties of moso bamboo to moisture content change under the fibre saturation point
title_short Sensitivity of several selected mechanical properties of moso bamboo to moisture content change under the fibre saturation point
title_sort sensitivity of several selected mechanical properties of moso bamboo to moisture content change under the fibre saturation point
topic Bamboo
Mechanical properties
Moisture dependence
Specific density
url http://www.ncsu.edu/bioresources/BioRes_07/BioRes_07_4_5048_Jiang_WTLY_Sensitivity_Properties_Bamboo_Moisture_FSP_3081.pdf
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AT genlintian sensitivityofseveralselectedmechanicalpropertiesofmosobambootomoisturecontentchangeunderthefibresaturationpoint
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