A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Bending and shear properties of cross-laminated timber panels made of poplar (Populus alba)
Highlights CLT panels were manufactured from poplar as a fast-growing and hand-planted species. CLTs were tested under out-of-plane loading in various span-to-depth ratios. Mechanical properties of CLTs were computed and predicted based on experimental and analytical methods. Finite element method (FEM) could predict the amount and locations of bending stresses and crack initiation.
Abstract With the expansion of cross-laminated timber (CLT) material throughout the global construction community, an effort is being made to explore the use of regionally produced CLT materials from Iran, including the testing of fast-grown, hand-planted poplar (Populus alba). This paper investigated the out-of-plane bending properties of CLT panels manufactured using poplar at various span-to-depth ratios (SDR). Mechanical properties of poplar CLTs investigated included the modulus of rupture, apparent modulus of elasticity, effective bending stiffness, effective shear stiffness, and maximum shear stress in both the major and minor directions. Experimental test results were compared with both the shear analogy model and finite element method (FEM) results to examine the use of predictive modeling. Bending properties were predicted using the shear analogy method and FEM compared well with experimental results, with the FEM able to predict the distribution of bending and shear stress across the beam thickness. Modulus of rupture and apparent modulus of elasticity increased with increasing SDR in both the major and minor strength directions. In the major strength direction, the effective modulus of elasticity and maximum shear strength values predicted by the shear analogy method were in good agreement with experimental results. As noted in previous studies, the effective shear stiffness predicted by the shear analogy method in the major strength direction was 510% less than that of experimental results.
Bending and shear properties of cross-laminated timber panels made of poplar (Populus alba)
Highlights CLT panels were manufactured from poplar as a fast-growing and hand-planted species. CLTs were tested under out-of-plane loading in various span-to-depth ratios. Mechanical properties of CLTs were computed and predicted based on experimental and analytical methods. Finite element method (FEM) could predict the amount and locations of bending stresses and crack initiation.
Abstract With the expansion of cross-laminated timber (CLT) material throughout the global construction community, an effort is being made to explore the use of regionally produced CLT materials from Iran, including the testing of fast-grown, hand-planted poplar (Populus alba). This paper investigated the out-of-plane bending properties of CLT panels manufactured using poplar at various span-to-depth ratios (SDR). Mechanical properties of poplar CLTs investigated included the modulus of rupture, apparent modulus of elasticity, effective bending stiffness, effective shear stiffness, and maximum shear stress in both the major and minor directions. Experimental test results were compared with both the shear analogy model and finite element method (FEM) results to examine the use of predictive modeling. Bending properties were predicted using the shear analogy method and FEM compared well with experimental results, with the FEM able to predict the distribution of bending and shear stress across the beam thickness. Modulus of rupture and apparent modulus of elasticity increased with increasing SDR in both the major and minor strength directions. In the major strength direction, the effective modulus of elasticity and maximum shear strength values predicted by the shear analogy method were in good agreement with experimental results. As noted in previous studies, the effective shear stiffness predicted by the shear analogy method in the major strength direction was 510% less than that of experimental results.
Bending and shear properties of cross-laminated timber panels made of poplar (Populus alba)
Hematabadi, Hojat (author) / Madhoushi, Mehrab (author) / Khazaeyan, Abolghasem (author) / Ebrahimi, Ghanbar (author) / Hindman, Daniel (author) / Loferski, Joseph (author)
2020-07-19
Article (Journal)
Electronic Resource
English
Bending and compressive properties of cross-laminated timber (CLT) panels made from Canadian hemlock
| British Library Online Contents | 2018