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Finite Element Analysis of Structural Strength in Flattened Bamboo Sheet Furniture

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Veröffentlicht in:Forests vol. 16, no. 12 (2025), p. 1857-1872
1. Verfasser: Wu Chunjin
Weitere Verfasser: Li, Yan, Chen, Ran, Song Shasha, Liu, Yi, Liu Huanrong
Veröffentlicht:
MDPI AG
Schlagworte:
Load
Mechanical properties
Finite element method
Structural engineering
Boundary conditions
Anisotropy
Flattening
Optimization
Bamboo
Elastic properties
Structural design
Adhesives
Load bearing elements
Structural strength
Elastic anisotropy
Sustainable use
Ultimate loads
Furniture
Substrates
Failure mechanisms
Modulus of elasticity
Hardwoods
Mechanical analysis
Design optimization
Bearing capacity
Parameters
Tee joints
Economic
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Abstract:To advance “bamboo-as-plastic-substitute” initiatives and the sustainable use of furniture materials, this study investigates flattened bamboo sheets by determining their principal-direction elastic constants and evaluating two common furniture T-joints—dowel-jointed panel-type and right-angle mortise-and-tenon frame-type—through tensile and bending load-bearing tests alongside finite element (FE) comparisons. The results show a pronounced anisotropy, with the longitudinal elastic modulus markedly higher than in other directions. At the joint level, the average ultimate load-bearing capacities were 4.06 kN (panel-type tension), 3.70 kN (frame-type tension), 0.264 kN (panel-type bending), and 0.589 kN (frame-type bending). Under identical structural configurations and boundary conditions, the tensile and bending capacities of flattened bamboo sheets were comparable to or exceeded those of the comparator materials (MDF, cherry wood, bamboo-based composites), and failures predominantly occurred in the adhesive layer rather than the bamboo substrate. Across four representative cases, FE predictions achieved a mean absolute percentage error (MAPE) of 6.5% with a maximum relative error of 12.5%; the regression correlation was R2 ≈ 0.999 based on four paired observations, which should be interpreted with caution due to the small sample size. The study validates that FE models driven by experimentally measured anisotropic parameters can effectively reproduce the mechanical response of flattened bamboo T-joints, providing a basis for structural design, lightweighting, and parameter optimization in furniture applications. Further work should characterize adhesive systems, environmental durability, and interfacial failure mechanisms to enhance the model’s general applicability.
ISSN:1999-4907
DOI:10.3390/f16121857
Quelle:Agriculture Science Database