Innovative Glulam timber composites

Verification of the Photogrammetric Approach on the Torsion Test Method for Timber Beams (2021)
Journal Article
Mohamed, A., Uheida, K., Quan, Y., & Zhang, H. (2022). Verification of the Photogrammetric Approach on the Torsion Test Method for Timber Beams. International Wood Products Journal, 13(1), 3-14. https://doi.org/10.1080/20426445.2021.1983690

The photogrammetric approach was proposed in this study to evaluate torsional behaviour of glulam timber beams during the torsion test. The main objectives of the experimental work were to investigate the applicability of the photogrammetric approach... Read More about Verification of the Photogrammetric Approach on the Torsion Test Method for Timber Beams.

Determining equivalent-sectional shear modulus in torsion tests for laminated glass beams using photogrammetry method (2021)
Journal Article
Uheida, K., Deng, Y., Zhang, H., Galuppi, L., Gao, J., Li, X., Huang, S., Qin, X., Wong, S. H. F., Guo, J., Zhang, G., & Mohamed, A. (2021). Determining equivalent-sectional shear modulus in torsion tests for laminated glass beams using photogrammetry method. Composite Structures, 276, Article 114572. https://doi.org/10.1016/j.compstruct.2021.114572

This paper proposes a concise concept for quantifying the shear/torsional stiffness of the laminated glass beams experimentally by introducing the Equivalent-Sectional Shear Modulus (ESSM), that is directly measured from the torque and sectional-rota... Read More about Determining equivalent-sectional shear modulus in torsion tests for laminated glass beams using photogrammetry method.

Effect of Concentrated Butt-Joints on Flexural Properties of Laminated Bamboo-Timber Flitch Beams (2021)
Journal Article
Zhang, H., Gharavi, N., Wong, S. H. F., Deng, Y., Bahadori-Jahromi, A., Limkatanyu, S., Qiao, Y., & Kuang, J. (2022). Effect of Concentrated Butt-Joints on Flexural Properties of Laminated Bamboo-Timber Flitch Beams. Journal of Sandwich Structures and Materials, 24(2), 1226-1244. https://doi.org/10.1177/10996362211040103

This paper presents the experimental and analytical studies to investigate the effect of concentrated butt-joints on the flexural properties of laminated bamboo-timber flitch beam (BTFB, or bio-flitch beam). The experimental results reveal that the c... Read More about Effect of Concentrated Butt-Joints on Flexural Properties of Laminated Bamboo-Timber Flitch Beams.

Applicability of the Torsion Test and Photogrammetric Approach on Structural Timber Beams (2021)
Journal Article
Mohamed, A., Uheida, K., Quan, Y., & Zhang, H. (2021). Applicability of the Torsion Test and Photogrammetric Approach on Structural Timber Beams. International Wood Products Journal, 12(3), 206-217. https://doi.org/10.1080/20426445.2021.1952047

The torsion test is recommended as a standard approach to determine the shear modulus of structural-size timber and glulam beams. However, there is a difficulty in measuring the rotational deformations of timber joists. A stereo camera system and pho... Read More about Applicability of the Torsion Test and Photogrammetric Approach on Structural Timber Beams.

Uncertainties in Non-Domestic Energy Performance Certificate Generating in the UK (2021)
Journal Article
Amirkhani, S., Bahadori-Jahromi, A., Mylona, A., Godfrey, P., Cook, D., Tahayori, H., & Zhang, H. (2021). Uncertainties in Non-Domestic Energy Performance Certificate Generating in the UK. Sustainability, 13(14), Article 7607. https://doi.org/10.3390/su13147607

In light of the recent launch of the Minimum Energy Efficiency Standard targeting the energy performance of commercial buildings, this study compares the energy performance certificates of three UK hotels generated by two different software, EDSL TAS... Read More about Uncertainties in Non-Domestic Energy Performance Certificate Generating in the UK.

Photogrammetric Evaluation of Glulam Timber Shear Modulus Using Torsion Test Method and Dual Stereo Vision System (2021)
Journal Article
Mohamed, A., Deng, Y., Zhang, H., Wong, S. H. F., Uheida, K., Zhang, Y., Lehmann, M., & Quan, Y. (2021). Photogrammetric Evaluation of Glulam Timber Shear Modulus Using Torsion Test Method and Dual Stereo Vision System. European Journal of Wood and Wood Products, 79, 1209-1223. https://doi.org/10.1007/s00107-021-01729-8

The shear modulus of timber and timber-based composite materials is a fundamental me-chanical property which is used in the design of timber and engineered wood products. The problem of experimentally determining appropriate values of shear modulus f... Read More about Photogrammetric Evaluation of Glulam Timber Shear Modulus Using Torsion Test Method and Dual Stereo Vision System.

Evaluation of the End Effect Impact on the Torsion Test for Determining the Shear Modulus of a Timber Beam through a Photogrammetry Approach (2017)
Journal Article
Gharavi, N., Zhang, H., & Xie, Y. (2017). Evaluation of the End Effect Impact on the Torsion Test for Determining the Shear Modulus of a Timber Beam through a Photogrammetry Approach. Proceedings of the World Academy of Science, Engineering and Technology, 11(3), 666-669

The timber beam end effect in the torsion test is evaluated using binocular stereo vision system. It is recommended by BS EN 408:2010+A1:2012 to exclude a distance of two to three times of cross-sectional thickness (b) from ends to avoid the end effe... Read More about Evaluation of the End Effect Impact on the Torsion Test for Determining the Shear Modulus of a Timber Beam through a Photogrammetry Approach.