Evaluation of the Uniformity of Density and Mechanical Properties of Bamboo-Bundle Laminated Veneer Lumber (BLVL)
| Autor: | Dan Zhang, Ge Wang, Fuming Chen, Qingchao Zhao, Liping Cai, Jianchao Deng, Sheldon Q. Shi, Zehui Jiang |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Shearing (physics)
Bamboo Environmental Engineering Materials science Stability of mechanical properties Coefficient of variation business.industry medicine.medical_treatment Homogeneity (statistics) lcsh:Biotechnology Bioengineering Laminated veneer lumber Structural engineering Vertical density profile Density uniformity Bamboo bundle laminated veneer lumber Linear relationship Density distribution Bundle lcsh:TP248.13-248.65 medicine Veneer Composite material business Waste Management and Disposal |
| Zdroj: | BioResources, Vol 9, Iss 1, Pp 554-565 (2013) Scopus-Elsevier |
| ISSN: | 1930-2126 |
| Popis: | The objective of this study was to evaluate the uniformity of density distribution for Bamboo-bundle Laminated Veneer Lumber (BLVL) and its relationship to the stability of mechanical performance. A novel assembly style called one-piece veneer formation technology was developed to enhance the density uniformity, and four different density levels for BLVL were examined by X-ray scanning. The results indicated that the homogeneity of density, the stability of mechanical performance, and the mechanical properties for BLVL could be effectively improved by assembling the bamboo bundles into layers and then combining the layers to make the lumber. The density uniformity in width and thickness directions increased with increasing target density. A negatively linear correlation between density and Coefficient of Variation (COV) of MOR and shearing strength was observed. Partial correlation analysis revealed that when controlling for the variability of density, the linear relationship between density and the COV of MOR became insignificant, and the degree of linear correlation between density and the COV of shearing strength decreased. |
| Databáze: | OpenAIRE |
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