Yang, Dong;
Li, Haitao;
Wei, Dongdong;
Lorenzo, Rodolfo;
Corbi, Ileana;
Corbi, Ottavia;
Yuan, Conggan;
... Zhang, Huizhong; + view all
(2021)
Length effect on bending properties and evaluation of shear modulus of parallel bamboo strand lumber.
European Journal of Wood and Wood Products
, 79
(6)
pp. 1507-1517.
10.1007/s00107-021-01714-1.
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Abstract
One hundred sixty-two parallel bamboo strand lumber (PBSL) beams were tested for the bending properties under three-point bending with variable span. Two typical failure types were classified, type I was tension failure of the bamboo fiber located below the neutral axis at mid-span, while type II was shear failure which was mainly found in specimens with large depth-span ratio. The shear modulus G LR of PBSL was also calculated according to Timoshenko’s bending theory. To evaluate the shear modulus, 45° off-axis compression tests had been done. The results showed that the mean values of shear modulus for G LT, G TR, and G LR are 1254.5 MPa, 408.1 MPa, and 716.4 MPa, respectively. The bending test result was compared with the shear modulus measured by 45° off-axis compression test. It was found that the shear modulus measured by three-point bending test with variable span was significantly less than the shear modulus obtained by 45° off-axis compression test. The empirical equation of shear factor s corresponding to depth-span ratio h/l was proposed. The calculation results gained from the proposed formula are in good agreement with the 45° off-axis compression test results.
| Type: | Article |
|---|---|
| Title: | Length effect on bending properties and evaluation of shear modulus of parallel bamboo strand lumber |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1007/s00107-021-01714-1 |
| Publisher version: | https://doi.org/10.1007/s00107-021-01714-1 |
| 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: | Science & Technology, Life Sciences & Biomedicine, Technology, Forestry, Materials Science, Paper & Wood, Materials Science, STRUCTURAL COMPOSITE PRODUCTS, MECHANICAL-PROPERTIES, ENGINEERED BAMBOO, FUNDAMENTAL PROPERTIES, WOOD, SCRIMBER, PERFORMANCE, BEHAVIOR |
| 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.ucl.ac.uk/id/eprint/10170655 |
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