Water effects on the deformation and fracture behaviors of the multi-scaled cellular fibrous bamboo

Chen, Guowei; Luo, Hongyun; Yang, Haoyu; Zhang, Tao; Li, Sijie

doi:10.1016/j.actbio.2017.10.005

Cited by 75 publications

(30 citation statements)

References 45 publications

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“…The observed two‐ to fourfold increase in ductility/formability in tension due to hydration is much greater than, for example, that documented in bamboo (≈67%, from 0.04 to 0.067), or sisal fiber (from 0.02 to 0.04) used in rope and twine. [ 40 ] We expect to see similar increases in failure strain and formability due to hydration in the other loading configurations. Although prolonged hydration (12 h) reduces the strength significantly, a short (2 h) duration hydration treatment is just as effective as the long‐duration one in increasing the formability (Figure 3).…”

Section: Discussionmentioning

confidence: 87%

Mechanical Behavior and High Formability of Palm Leaf Materials

Mohanty

Viswanathan

et al. 2021

Adv Energy and Sustain Res

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The proliferation of single‐use plastics has stimulated interest in sustainable material substitutes with sufficient ductility and structural integrity. Herein, the mechanical behavior and high formability of the leaf sheath from a representative palm species—Areca catechu—and its immense potential for manufacturing of eco‐friendly food packaging are reported on. Using microstructural analyses, such as X‐ray micro‐computed tomography (μCT), electron microscopy, and optical profilometry, under different loading conditions, it is shown that this leaf can accommodate forming strains as large as 200%, similar to ductile metals. The sheath deformation response is highly sensitive to hydration, with up to 400% increase in forming strain. The embodied energy for leaf products is four to five orders smaller than for plastic or paper products. The results establish the microstructure basis for the high formability and the contours of a forming limit diagram that delineates product shapes that can be formed in a single step from this plant material.

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Section: Discussionmentioning

confidence: 87%

Mechanical Behavior and High Formability of Palm Leaf Materials

Mohanty

Viswanathan

et al. 2021

Adv Energy and Sustain Res

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“…Bamboo has an anisotropic, gradient, and hierarchical structure 10 – 15 . As an anisotropic material, bamboo has variable water vapor diffusivities which could be analyzed in a cylindrical coordinate system.…”

Section: Introductionmentioning

confidence: 99%

Water vapor sorption behavior of bamboo pertaining to its hierarchical structure

Chen

Fang

Wang

et al. 2021

Sci Rep

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Bamboo is an anisotropic, hierarchical, and hygroscopic material. Moisture transport in bamboo is one of the most fundamental properties affecting almost all other physical and mechanical properties of the material. This study investigated the water vapor sorption behaviors of bamboo at various structural levels: cell walls, cells (with pits) and bamboo blocks. The specimens with two sorption directions, longitudinal (L) and transverse (T), were measured by saturated salt solution method and dynamic vapor sorption. The parallel exponential kinetics model was used to analyze the sorption kinetics. The results showed that at the cell wall level, the sorption rate and equilibrium moisture content (EMC) of cell wall in the L specimens were larger than those in the T specimens. The differences were probably caused by the looser cell wall layers in the L specimens. At the cellular scale, pits in the cell wall resulted in an enhanced sorption rate and EMC of the T specimens compared with the L specimens where the pits in the parenchyma cells were only distributed in the lateral walls but not in end walls. At the macro scale, the sorption rate and moisture content of bamboo blocks were largely controlled by the vessel cells. As a hierarchically-structured plant, bamboo performs the biological function of moisture transport at all these scales. This work helps improve the understanding of water transport behavior in bamboo, which may lead to better bamboo drying and impregnation processes.

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“…Chen et. al., [13] have studied water effects on the fracture behaviours of the "Nan Zhu" or Moso bamboos (Phyllostachys heterocycla (Carr.) Mitford cv.…”

Section: Introductionmentioning

confidence: 99%

Flaw Resistance and Mode - I Fracture Energy Redistribution in Bamboo - A Correlation

Mannan¹

2021

Adv. Mater. Lett.

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Water effects on the deformation and fracture behaviors of the multi-scaled cellular fibrous bamboo

Cited by 75 publications

References 45 publications

Mechanical Behavior and High Formability of Palm Leaf Materials

Mechanical Behavior and High Formability of Palm Leaf Materials

Water vapor sorption behavior of bamboo pertaining to its hierarchical structure

Flaw Resistance and Mode - I Fracture Energy Redistribution in Bamboo - A Correlation

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