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All Outputs (74)

The future of quality control for wood & wood products. (2010)
Presentation / Conference Contribution
(2010). The future of quality control for wood & wood products. In D. Ridley-Ellis, & J. Moore (Eds.), Proceedings of the final conference of COST Action E53

The principal aim of the COST Action E53 was to improve methods of quality control in processing round wood and timber to ensure that timber products and components meet the requirements of the users. The Action also promoted the improvement of spe... Read More about The future of quality control for wood & wood products..

Determination of shear strength of timber joists by torsion testing. (2009)
Presentation / Conference Contribution
Khokhar, A. M., Zhang, H., & Ridley-Ellis, D. (2009). Determination of shear strength of timber joists by torsion testing. In J. A. Santos (Ed.), Proceedings of COST E53 conference "Economic and Technical aspects of quality control for wood and wood produ

This paper presents an experimental investigation in which the torsion testing approach was employed to evaluate the shear strength of Sitka spruce and Norway spruce joists. Rectangular structural size specimens of lengths ranging from 1.0 m to 3.6... Read More about Determination of shear strength of timber joists by torsion testing..

The use of acoustic-based NDT to predict the wood properties of UK-grown Sitka spruce at different stages in the wood supply chain. (2009)
Presentation / Conference Contribution
Moore, J., Lyon, A. J., Searles, G. J., & Ridley-Ellis, D. (2009). The use of acoustic-based NDT to predict the wood properties of UK-grown Sitka spruce at different stages in the wood supply chain. In H. Zhang, & X. Wang (Eds.), Proceedings of the 16th I

This paper is concerned with the extent to which portable stress-wave-based instruments can be used to segregate Sitka spruce trees and logs; in particular the relationship between acoustic velocity and the properties of sawn timber. Measurements wer... Read More about The use of acoustic-based NDT to predict the wood properties of UK-grown Sitka spruce at different stages in the wood supply chain..

Random acts of elasticity: MoE, G and EN408. (2009)
Presentation / Conference Contribution
Ridley-Ellis, D., Moore, J., & Khokhar, A. M. (2009). Random acts of elasticity: MoE, G and EN408.

The paper examines the variation in modulus of elasticity (MoE) and shear modulus (G) within sawn timber and the implications for testing timber in accordance with EN408:2003. A combination of mechanical testing and simple analytical modelling is us... Read More about Random acts of elasticity: MoE, G and EN408..

Online learning for the forest and timber industries. (2008)
Presentation / Conference Contribution
Ridley-Ellis, D., Nolte, S., & Condon, P. (2008). Online learning for the forest and timber industries. In 10th World Conference on Timber Engineering 2008 (461-469)

Online learning offers advantages for all levels of training and development in the timber industries, from new recruits at technician level to chartered professionals. Learners and employers both value the flexibility it affords, while educators val... Read More about Online learning for the forest and timber industries..

Strength grading and the end user – lessons from the SIRT project at Napier University (2008)
Presentation / Conference Contribution
Ridley-Ellis, D., Moore, J., & Lyon, A. J. (2008). Strength grading and the end user – lessons from the SIRT project at Napier University.

The paper reviews the research that has been undertaken by the Strategic Integrated Research in Timber (SIRT) project at Napier University, with reference to the technologies, techniques and approaches required to grade the UK’s timber resource accor... Read More about Strength grading and the end user – lessons from the SIRT project at Napier University.

Determining the Shear Modulus of Sitka Spruce from Torsion Tests (2008)
Presentation / Conference Contribution
Khokhar, A., Zhang, H., Ridley-Ellis, D., & Moore, J. (2008). Determining the Shear Modulus of Sitka Spruce from Torsion Tests. In 10th World Conference on Timber Engineering 2008 (2137-2144)

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.

Torsion tests on small and large-scale RHS with circular wall cut-outs (2007)
Presentation / Conference Contribution
Ridley-Ellis, D., Owen, J. S., & Davies, G. (2007). Torsion tests on small and large-scale RHS with circular wall cut-outs.

The results of small and large-scale torsion tests on rectangular section tubes with circular wall perforations are presented and discussed. Perforations are shown to cause the torsional resistance to be re-duced by up to 60% and stiffness to be redu... Read More about Torsion tests on small and large-scale RHS with circular wall cut-outs.

The performance of a new blind bolt for moment-resisting connections. (2003)
Presentation / Conference Contribution
Tizani, W., & Ridley-Ellis, D. (2003). The performance of a new blind bolt for moment-resisting connections. In M. A. Jaurrieta, A. Alonso, & J. A. Chica (Eds.), Tubular Structures X: Proceedings of the 10th International Symposium, Madrid, Spain, 18-20 S

The paper introduces the principal findings of a testing programme carried out to assess the performance of a newly developed blind-bolt. The blind-bolt, an evolution of the Lindapter-Hollobolt, is in-tended for use when making moment-resisting conne... Read More about The performance of a new blind bolt for moment-resisting connections..

Theoretical and measured torsional behaviour of rectangular hollow sections. (2002)
Presentation / Conference Contribution
Ridley-Ellis, D., Owen, J. S., & Davies, G. (2002). Theoretical and measured torsional behaviour of rectangular hollow sections.

Theories for torsion of Rectangular Hollow Sections (RHS) are compared and thick wall theory is shown to be a better representation of behaviour. The results of torsion tests on hot-finished steel RHS are discussed and compared to the predictions of... Read More about Theoretical and measured torsional behaviour of rectangular hollow sections..

Flexural behaviour of Rectangular Hollow Sections with circular side wall openings. (2001)
Presentation / Conference Contribution
Ridley-Ellis, D. J., Owen, J. S., & Davies, G. (2001). Flexural behaviour of Rectangular Hollow Sections with circular side wall openings. In R. Puthli, & S. Herion (Eds.), Tubular Structures IX : Proceedings of the Ninth International Symposium and Euroc

The influence of circular web openings on the flexura behaviour of Rectangular Hollow Sections is introduced. The results of full-scale laboratory tests in three and four-point bending and the development of analytical finite element models to predi... Read More about Flexural behaviour of Rectangular Hollow Sections with circular side wall openings..

Fundamental behaviour of rectangular hollow sections with web openings. (1998)
Presentation / Conference Contribution
Ridley-Ellis, D., Davies, G., & Owen, J. S. (1998). Fundamental behaviour of rectangular hollow sections with web openings. In Y. S. Choo, & G. J. van der Vegte (Eds.), Proceedings of the 8th International Symposium on Tubular Structures (ISTS) (167-175)

Rectangular Hollow Sections as Slim Floor edge beams (1998)
Presentation / Conference Contribution
Ridley-Ellis, D., Davies, G., & Owen, J. S. (1998). Rectangular Hollow Sections as Slim Floor edge beams. In D. Dubina, I. Vayas, & V. Ungureanu (Eds.), New Technologies and Structures in Civil Engineering – case studies on remarkable constructions (145

Presented at Trends and developments in building, TEMPUS JEP 11297, Iasi (Romania), May 1998