Hong, Chaokun;
Li, Haitao;
Yang, Dong;
Li, Xin;
Lorenzo, Rodolfo;
Ashraf, Mahmud;
(2023)
Laminated bamboo lumber in compression perpendicular to the grain direction: Experimental investigation and the finite element analysis.
Wood Material Science and Engineering
, 18
(4)
pp. 1302-1318.
10.1080/17480272.2022.2129447.
Preview |
Text
Lorenzo_Laminated bamboo lumber (LBL) in compression perpendicular to the grain direction Experimental investigation and finite element analysis.pdf Download (3MB) | Preview |
Abstract
Localized damage may occur due to the fact that laminated bamboo lumber (LBL) has a lower compressive strength perpendicular to the grain direction than it does parallel to the grain. In this study, the transverse compressive performance of LBL under entire-surface compression and local-surface compression is investigated. Load–displacement curves, stress–strain relationship, detailed failure modes, and basic mechanical properties are obtained. The results show that despite the compressive strength and elastic modulus being nearly the same in the two transverse orientations, the failure patterns are distinct due to the layer structure. Ramberg-Osgood relation is utilized to fit the stress–strain curves. Proportional limit strength is determined indicating that specimens compressed locally have a greater load-bearing capability. Based on the finite element analysis and theoretical study, the mechanism of the enhancement in proportional limit strength is revealed. Equations for determining the bearing load of a specimen under local compression in the elastic stage are derived from the simulation data and logit model, considering the contact length and geometric size of the specimen. Additionally, parametric tests are conducted to determine the effect of bearing shape, bearing area, and loading mode on the stress distribution and bearing capacity.
| Type: | Article |
|---|---|
| Title: | Laminated bamboo lumber in compression perpendicular to the grain direction: Experimental investigation and the finite element analysis |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1080/17480272.2022.2129447 |
| Publisher version: | https://doi.org/10.1080/17480272.2022.2129447 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Laminated bamboo lumber; transverse compression; local compression; finite element analysis |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Civil, Environ and Geomatic Eng |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10170646 |
Archive Staff Only
 |
View Item |
