Effect of off-axis angle on tension failures of laminated moso bamboo-poplar veneer composites: An in situ characterization

Inspired by the natural gradient structure of the moso bamboo wall, a hybrid moso bamboo（B)Wood(W) veneer Composite (BWC) was developed with a specific structure of [B0°/ W90°/ B0°]. The dynamic fracture behaviors and damage mechanism of the BWC were characterized using in situ scanning electron mic...

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Autores principales:	Shanyu Han, Fuming Chen, Haidong Li, Ge Wang
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Bamboo Biomaterials Structural design In situ stretching Strengthening and toughening mechanism Materials of engineering and construction. Mechanics of materials TA401-492
Acceso en línea:	https://doaj.org/article/3603f1f1ae284693b035f475e1d4d76c
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spelling	oai:doaj.org-article:3603f1f1ae284693b035f475e1d4d76c2021-11-20T04:55:46ZEffect of off-axis angle on tension failures of laminated moso bamboo-poplar veneer composites: An in situ characterization0264-127510.1016/j.matdes.2021.110254https://doaj.org/article/3603f1f1ae284693b035f475e1d4d76c2021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S0264127521008091https://doaj.org/toc/0264-1275Inspired by the natural gradient structure of the moso bamboo wall, a hybrid moso bamboo（B)Wood(W) veneer Composite (BWC) was developed with a specific structure of [B0°/ W90°/ B0°]. The dynamic fracture behaviors and damage mechanism of the BWC were characterized using in situ scanning electron microscopy. X-ray micro- computed tomography imaging was employed to verify the off-axis tensile mechanical properties. The results showed that the maximum tensile strength and modulus of the BWC under off-axis loadings were 232.25 MPa and 17.47 GPa, respectively. Meanwhile, the maximum specific strength and specific modulus of the BWC were 290.31 MPa·cm3·g−1 and 23.84 GPa·cm3·g−1, respectively, which are higher than both natural wood (95.26 MPa·cm3·g−1, 10.82 GPa·cm3·g−1), bamboo (208.56 MPa·cm3·g−1, 15.74 GPa·cm3·g−1) and even steel alloy (237.86 MPa·cm3·g−1, 21.98 GPa·cm3·g−1). Compared to reorganized bamboo (RB), the porosity of the BWC was 61.1% lower. The BWC was strengthened via internal toughening mechanisms (i.e. fiber bridging) and external toughening mechanisms (i.e. multiregional distribution of micro-cracks). This work highlights methods to design high-performance bio composite from commonly used biomaterials through synergistic strengthening and toughening mechanisms, which has significant advantages in the ever-growing construction industry.Shanyu HanFuming ChenHaidong LiGe WangElsevierarticleBambooBiomaterialsStructural designIn situ stretchingStrengthening and toughening mechanismMaterials of engineering and construction. Mechanics of materialsTA401-492ENMaterials & Design, Vol 212, Iss , Pp 110254- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Bamboo Biomaterials Structural design In situ stretching Strengthening and toughening mechanism Materials of engineering and construction. Mechanics of materials TA401-492
spellingShingle	Bamboo Biomaterials Structural design In situ stretching Strengthening and toughening mechanism Materials of engineering and construction. Mechanics of materials TA401-492 Shanyu Han Fuming Chen Haidong Li Ge Wang Effect of off-axis angle on tension failures of laminated moso bamboo-poplar veneer composites: An in situ characterization
description	Inspired by the natural gradient structure of the moso bamboo wall, a hybrid moso bamboo（B)Wood(W) veneer Composite (BWC) was developed with a specific structure of [B0°/ W90°/ B0°]. The dynamic fracture behaviors and damage mechanism of the BWC were characterized using in situ scanning electron microscopy. X-ray micro- computed tomography imaging was employed to verify the off-axis tensile mechanical properties. The results showed that the maximum tensile strength and modulus of the BWC under off-axis loadings were 232.25 MPa and 17.47 GPa, respectively. Meanwhile, the maximum specific strength and specific modulus of the BWC were 290.31 MPa·cm3·g−1 and 23.84 GPa·cm3·g−1, respectively, which are higher than both natural wood (95.26 MPa·cm3·g−1, 10.82 GPa·cm3·g−1), bamboo (208.56 MPa·cm3·g−1, 15.74 GPa·cm3·g−1) and even steel alloy (237.86 MPa·cm3·g−1, 21.98 GPa·cm3·g−1). Compared to reorganized bamboo (RB), the porosity of the BWC was 61.1% lower. The BWC was strengthened via internal toughening mechanisms (i.e. fiber bridging) and external toughening mechanisms (i.e. multiregional distribution of micro-cracks). This work highlights methods to design high-performance bio composite from commonly used biomaterials through synergistic strengthening and toughening mechanisms, which has significant advantages in the ever-growing construction industry.
format	article
author	Shanyu Han Fuming Chen Haidong Li Ge Wang
author_facet	Shanyu Han Fuming Chen Haidong Li Ge Wang
author_sort	Shanyu Han
title	Effect of off-axis angle on tension failures of laminated moso bamboo-poplar veneer composites: An in situ characterization
title_short	Effect of off-axis angle on tension failures of laminated moso bamboo-poplar veneer composites: An in situ characterization
title_full	Effect of off-axis angle on tension failures of laminated moso bamboo-poplar veneer composites: An in situ characterization
title_fullStr	Effect of off-axis angle on tension failures of laminated moso bamboo-poplar veneer composites: An in situ characterization
title_full_unstemmed	Effect of off-axis angle on tension failures of laminated moso bamboo-poplar veneer composites: An in situ characterization
title_sort	effect of off-axis angle on tension failures of laminated moso bamboo-poplar veneer composites: an in situ characterization
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/3603f1f1ae284693b035f475e1d4d76c
work_keys_str_mv	AT shanyuhan effectofoffaxisangleontensionfailuresoflaminatedmosobamboopoplarveneercompositesaninsitucharacterization AT fumingchen effectofoffaxisangleontensionfailuresoflaminatedmosobamboopoplarveneercompositesaninsitucharacterization AT haidongli effectofoffaxisangleontensionfailuresoflaminatedmosobamboopoplarveneercompositesaninsitucharacterization AT gewang effectofoffaxisangleontensionfailuresoflaminatedmosobamboopoplarveneercompositesaninsitucharacterization
_version_	1718419707198963712

Effect of off-axis angle on tension failures of laminated moso bamboo-poplar veneer composites: An in situ characterization

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