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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.

Determination of shear modulus of wood joists from torsion tests and relationship with modulus of elasticity (2018)
Presentation / Conference Contribution
Khokhar, A., & Zhang, J. (2018, August). Determination of shear modulus of wood joists from torsion tests and relationship with modulus of elasticity. Presented at World Conference on Timber Engineering, Seoul, Republic of Korea

This paper presents the work that was undertaken to use torsion tests to evaluate the shear modulus of wood joists. The relationship of the shear modulus with modulus of elasticity, obtained from bending tests, was examined. Testing standard EN408 h... Read More about Determination of shear modulus of wood joists from torsion tests and relationship with modulus of elasticity.

Using topology optimization technique to determine the optimized layout of steel reinforcing bars in concrete structures (2016)
Presentation / Conference Contribution
Li, M., Zhang, H., & Wong, S. H. F. (2016, June). Using topology optimization technique to determine the optimized layout of steel reinforcing bars in concrete structures. Presented at 5th International Conference on Engineering Optimization

This study presents an optimization procedure based on the modified Bi-directional evolutionary structural optimization (BESO) approach to optimize both location and orientation of discrete reinforcing steel bars within concrete structures, while sat... Read More about Using topology optimization technique to determine the optimized layout of steel reinforcing bars in concrete structures.

The Use of Torsion Test Method to Evaluate the Shear Properties of Timber Joists (2012)
Presentation / Conference Contribution
Khokhar, A., & Zhang, J. (2012, July). The Use of Torsion Test Method to Evaluate the Shear Properties of Timber Joists. Presented at World Conference on Timber Engineering (WCTE 2012)

This paper presents details of the experimental method and test results from a series of torsion tests undertaken to evaluate the shear modulus and shear strength of solid timber joist. The variation of shear modulus within and between test samples,... Read More about The Use of Torsion Test Method to Evaluate the Shear Properties of Timber Joists.

Digital image processing of weathered stone for determining the optimum cleaning level of stonework (2012)
Presentation / Conference Contribution
Humanyun, R., Zhang, H., & Zhang, B. (2012, July). Digital image processing of weathered stone for determining the optimum cleaning level of stonework. Presented at 14th International Conference and Exhibition on Structural Faults and Repair

In this study, the authors introduced a new image component sampling technique that can be used to evaluate level of cleaning of weathered masonry stone for historic buildings. The proposed technique is based on the Standard Pattern (SP). The images... Read More about Digital image processing of weathered stone for determining the optimum cleaning level of stonework.

Evaluation of shear constant of timber glulam composite with photogrammetric approach (2012)
Presentation / Conference Contribution
Zhang, H., Mohamed, A., & Smith, I. (2012, June). Evaluation of shear constant of timber glulam composite with photogrammetric approach. Presented at The Fourteenth International Conference on Computing in Civil and Building Engineering

Shear constant of timber glulam materials plays an important role in structural modelling, such as lateral torsional buckling of the glulam beam, floor vibration and stabilities of long span glulam girders. In normal design approach, a fraction of th... Read More about Evaluation of shear constant of timber glulam composite with photogrammetric approach.

Evaluation of the Shear Constant of a Timber Beam using a Photogrammetric Approach (2011)
Presentation / Conference Contribution
Zhang, H., Mohamed, A., & Xiao, Z. (2011, June). Evaluation of the Shear Constant of a Timber Beam using a Photogrammetric Approach. Presented at Proceedings of the Thirteenth International Conference on Civil, Structural and Environmental Engineering Computing

The shear modulus is a fundamental mechanical property of wood that is used in general timber design [1,2,3]. Compared with other engineering materials, timber has relatively low shear stiffness in comparison to its modulus of elasticity, and so shea... Read More about Evaluation of the Shear Constant of a Timber Beam using a Photogrammetric Approach.

The shear strength and failure modes of timber joists obtained from the torsion test method. (2010)
Presentation / Conference Contribution
Khokhar, A. M., Zhang, H., & Ridley-Ellis, D. (2010, June). The shear strength and failure modes of timber joists obtained from the torsion test method. Presented at 11th World Conference on Timber Engineering 2010, Riva del Garda, Italy

This paper presents details of the experimental method and test results from a series of torsion tests undertaken to evaluate the shear strength of timber joists. The failure modes and the correlation of shear strength and torsional shear modulus we... Read More about The shear strength and failure modes of timber joists obtained from the torsion test method..

Space-Time Finite Element Dynamic Analysis of Transfer Plate Structures in Tall Buildings (2009)
Presentation / Conference Contribution
Kuang, J., & Zhang, H. (2009, September). Space-Time Finite Element Dynamic Analysis of Transfer Plate Structures in Tall Buildings. Presented at Proceedings of the 12th International Conference on Civil, Structural and Environmental Engineering Computing

A new space-time finite element formulation for dynamic analysis of transfer plates is presented. The method is based on an unconventional Hamilton variational principle and a special technique in time domain interpolation is employed. For the simple... Read More about Space-Time Finite Element Dynamic Analysis of Transfer Plate Structures in Tall Buildings.

Determining the Shear Modulus of Sitka Spruce from Torsion Tests (2008)
Presentation / Conference Contribution
Khokhar, A., Zhang, H., Ridley-Ellis, D., & Moore, J. (2008, June). Determining the Shear Modulus of Sitka Spruce from Torsion Tests. Presented at WCTE2008:10th World Conference on Timber Engineering

This paper presents details of the experimental method, and preliminary results from, a series of torsion tests undertaken to evaluate the shear modulus of Sitka spruce (Picea sitchensis) timber. Direct torsion tests were used to determine the variat... Read More about Determining the Shear Modulus of Sitka Spruce from Torsion Tests.

A stiffened plate analogy for plate-and -beam structures (2006)
Presentation / Conference Contribution
Kuang, J. S., & Zhang, J. H. (2006, June). A stiffened plate analogy for plate-and -beam structures. Presented at Joint International Conference on Computing and Decision Making in Civil and Building Engineering

The current design practice of plate-and-grid structures in buildings, such as waffle slabs and ribbed plates, is relied largely on code-specified approximate methods, and the deflection of the system is rarely evaluated owing to the complexity of ca... Read More about A stiffened plate analogy for plate-and -beam structures.

Analysis of Stiffened Plates: An Effective Semi-Analytical Method (2003)
Presentation / Conference Contribution
Kuang, J., & Zhang, H. (2003, September). Analysis of Stiffened Plates: An Effective Semi-Analytical Method. Presented at Proceedings of the Ninth International Conference on Civil and Structural Engineering Computing

During the past three decades, a large amount of research results on the analysis and design of stiffened plates has been reported. Most of the methods used in the analyses include finite element [1,2,3], finite strip [4,5,6] and boundary element [7,... Read More about Analysis of Stiffened Plates: An Effective Semi-Analytical Method.