Tensile mechanical properties and failure mechanism of bamboo scrimber under different strain rates

Wang, M.T.; Cai, Xiongfeng; Lu, Yao; Noori, Adel; Chen, F.M.; Chen, L.B.; Jiang, Xiquan; Liu, J.Q.

doi:10.1016/j.conbuildmat.2021.124258

Cited by 24 publications

(8 citation statements)

References 28 publications

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“…Research on the impact bamboo stripe tensile properties and failure mechanism of bamboo scrimber is helpful to its wide range of applications for structural materials [37]. Observation of the bamboo cortex indicates that the bamboo node specimens also have longitudinal splitting in addition to the transverse fracture; however, the bamboo interlayer exhibits many cracks.…”

Section: Analysis Of Fracture Morphologymentioning

confidence: 99%

Research on the Bending Impact Resistance and Transverse Fracture Characteristics of Bamboo under the Action of Falling Weight

Jia¹,

Fei²,

Fang³

et al. 2023

Journal of Renewable Materials

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Drop weight impact tester was used to accurately measure the bending impact resistance of various parts of Phyllostachys edulis, commonly known as moso bamboo, with a growth cycle of 3-8 years. Cellulose crystallinity in the bottom (B), middle (M) and top (T) of bamboo at different ages was calculated using peak height analysis in X-ray diffraction. Heatmap of Spearman correlation analysis was used to represent the correlation between chemical composition and impact mechanics. The breaking load (BL), fracture energy (FE) and impact deflection (ID) of 3-8-yearold bamboo were found to be in the range of ~670-2120 N, ~5.17-15.55 J, and ~3.60-~17.76 mm, respectively. As the growth period of bamboo rises, the cellulose crystallinity at the B and T decreases first and then increases, while that for the M increases first and then remains stable. Similarly, the bending impact performance of bamboo was found to become stable with its growth and age. The flexural impact and toughness of the 4-year-old bamboo base material were better than other specimens. The enhancement in the bending impact properties of bamboo at different growth periods was influenced by the lignin content, while the value of FE was mainly positively correlated with ash, cold and hot water extracts and benzyl alcohol content. However the content of holocellulose and pentosan, air-dry density and, base density negatively influenced the FE. With the change in the height of the bamboo, the correlation between its impact mechanical properties and chemical composition gradually decreased. This study provides data support and theoretical basis for the age-appropriate thinning and application of moso bamboo.

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Section: Analysis Of Fracture Morphologymentioning

confidence: 99%

Research on the Bending Impact Resistance and Transverse Fracture Characteristics of Bamboo under the Action of Falling Weight

Jia¹,

Fei²,

Fang³

et al. 2023

Journal of Renewable Materials

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“…In the study of Wang et al (2021) on bamboo scrimber, when tension force is applied, microscopic failures are concentrated on matrix fracture, interfacial debonding, and fiber fracture. The weak matrix in the composite served as the first stress concentration during tensile loading resulting in initial cracks.…”

Section: Strength Properties Of Composite Boardsmentioning

confidence: 99%

“…The weak matrix in the composite served as the first stress concentration during tensile loading resulting in initial cracks. This is followed by the development of shear stress generating failures in the interfaces and later transferred to fibers resulting in fractures and consequently tension failure (Wang et al, 2021). At the macroscopic level, this was observed as the splintering of the composite board structure since the material is not that elastic to respond by straining when force is applied.…”

Section: Strength Properties Of Composite Boardsmentioning

confidence: 99%

“…At the macroscopic level, this was observed as the splintering of the composite board structure since the material is not that elastic to respond by straining when force is applied. Fibers are critical in restraining microscopic crack formation in the matrix but considering the composite internal structure of the material, the fiber-matrix interface is still prone to failures (Habibi & Lu, 2014;Liu et al, 2016;Wang et al, 2021).…”

Section: Strength Properties Of Composite Boardsmentioning

confidence: 99%

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Production of composite boards from Bambusa blumeana Schult.f. and Dendrocalamus asper (Schult.) Backer

Aribal¹,

Parlucha²,

Gelaga³

et al. 2023

J. Bamboo Rattan

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The study aims to produce composite boards from two bamboo species i.e., Bambusa blumeana and Dendrocalamus asper. The composites were termed as “strip-board” and “shavings-board” to indicate that such was processed from shavings and strips, respectively. The strip-board was produced from 1.2 meter poles. The poles were turned into slats and were deskinned, denoded, and further processed into thin long strips. The shavings-board were made from the internodes converted into slats, deskinned, and processed into thin materials. During defibering, the vascular bundles were cooked in three varying NaOH-water concentrations (i.e., 1%, 3%, and 5%) for 3 hours. The cooked bundles were thoroughly washed and dried to 14% MC, applied with polyvinyl acetate, and pressed at 1000 psi. The produced boards were cured, dried, and samples were subsequently tested for tensile, compression, and bending strength following the ASTM D-143-22 standards. The data were analyzed using the 2×2×3 (i.e., species, board type, NaOH concentration) factorial experiment in CRD. Results showed that the pressing pressure used was insufficient to produce void-free boards. No interaction was noted between the three factors, but the main effect indicated that B. blumeana has significantly higher tensile and compression strength compared to D. asper. The strip-boards also obtained the same compared to shavings-boards. Despite the strength properties exhibited by B. blumeana, boards from D. asper were economical because of the lower price per pole and production cost. We conclude that the high pressing pressure was the most crucial factor in producing void-free, tightly compacted dense boards

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“…Bamboo scrimber is produced through a series of processes including cutting, splitting, defibering, dipping, drying and hot pressing, using bamboo as the raw material [ 1 , 2 , 3 ]. This material exhibits numerous advantages compared to regular bamboo [ 4 , 5 ].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on the Fracture Toughness of Bamboo Scrimber

Zhang

Hou

et al. 2023

Materials

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In the past decade, bamboo scrimber has developed rapidly in the field of building materials due to its excellent mechanical properties, such as high toughness and high tensile strength. However, when the applied stress exceeds the ultimate strength limit of bamboo scrimber, cracks occur, which affects the performance of bamboo scrimber in structural applications. Due to the propensity of cracks to propagate, it reduces the load-bearing capacity of the bamboo scrimber material. Therefore, research on the fracture toughness of bamboo scrimber contributes to determining the material’s load-bearing capacity and failure mechanisms, enabling its widespread application in engineering failure analysis. The fracture toughness of bamboo scrimber was studied via the single-edge notched beam (SENB) experiment and compact compression (CC) method. Nine groups of longitudinal and transverse samples were selected for experimental investigation. The fracture toughness of longitudinal bamboo scrimber under tensile and compressive loadings was 3.59 MPa·m1/2 and 2.39 MPa·m1/2, respectively. In addition, the fracture toughness of transverse bamboo scrimber under tensile and compressive conditions was 0.38 MPa·m1/2 and 1.79 MPa·m1/2, respectively. The results show that, for this material, there was a significant distinction between longitudinal and transverse. Subsequently, three-point bending tests and simulations were studied. The results show that the failure mode and the force–displacement curve of the numerical simulation were highly consistent compared with the experimental results. It could verify the correctness of the test parameters. Finally, the flexural strength of bamboo scrimber was calculated to be as high as 143.16 MPa. This paper provides data accumulation for the numerical simulation of bamboo scrimber, which can further promote the development of bamboo scrimber parameters in all aspects of the application.

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Tensile mechanical properties and failure mechanism of bamboo scrimber under different strain rates

Cited by 24 publications

References 28 publications

Research on the Bending Impact Resistance and Transverse Fracture Characteristics of Bamboo under the Action of Falling Weight

Research on the Bending Impact Resistance and Transverse Fracture Characteristics of Bamboo under the Action of Falling Weight

Production of composite boards from Bambusa blumeana Schult.f. and Dendrocalamus asper (Schult.) Backer

Experimental Study on the Fracture Toughness of Bamboo Scrimber

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