Wood properties & strength grading
Presentation / Conference
Ridley-Ellis, D. (2022, December)
Wood properties & strength grading. Presented at James Jones & Sons Architects' and Structural Engineers' Open Day, Lockerbie
James Jones & Sons held an open day for architects and structural engineers at its flagship sawmill site in Lockerbie.
"James Jones & Sons' new visitor building at its flags...
A Shed Resource: A look at Wood Recycling in the UK
Presentation / Conference
Cramer, M., & Ridley-Ellis, D. (2020, September)
A Shed Resource: A look at Wood Recycling in the UK. Paper presented at Timber 2020, Online
The secondary timber value chain was explored by interviewing companies involved in wood recycling. The interviewees include community wood recyclers, chip producers and board...
Stiffness changes during low temperature thermal treatment of Scots pine, assessed by acoustic NDT
Conference Proceeding
Ridley-Ellis, D., Popescu, C., Keating, B. A., Popescu, M., & Hill, C. A. S. (2014)
Stiffness changes during low temperature thermal treatment of Scots pine, assessed by acoustic NDT. In L. Nunes, D. Jones, C. A. S. Hill, & H. Militz (Eds.), Proceedings of the 7th European Conference on Wood Modification
The change, over time, in density, longitudinal modulus of elasticity, shear modulus and chemical structure of Scots pine (Pinus sylvestris) under thermal treatment (110, 120 ...
Mechanical and physical properties of thermally modified Scots pine wood in high pressure reactor under saturated steam at 120, 150 and 180 °C.
Journal Article
Rautkari, L., Hill, C. A. S., Ridley-Ellis, D., & Hughes, M. (2014)
Mechanical and physical properties of thermally modified Scots pine wood in high pressure reactor under saturated steam at 120, 150 and 180 °C. European Journal of Wood and Wood Products, 72, 33-41. https://doi.org/10.1007/s00107-013-0749-5
Scots pine sapwood and heartwood were thermally modified under saturated steam at 120, 150 and 180 °C in a high pressure reactor. Mechanical properties such as dynamic and sta...
You’re so hip, darling: Materials researchers do stand-up comedy
Journal Article
Ridley-Ellis, D., & McNamara, L. (2015)
You’re so hip, darling: Materials researchers do stand-up comedy. MRS Bulletin, 40(08), 632-634. https://doi.org/10.1557/mrs.2015.187
Article about Bright Club (in Edinburgh and Glasgow)
Some awkward questions about density
Conference Proceeding
Ridley-Ellis, D., & Cramer, M. (2020)
Some awkward questions about density. In Timber 2020 Conference Proceedings. , (99-110
There are several different concepts of wood density, such as specific gravity, basic density, dry density, and oven dry density. These are often confusing, and sometimes poor...
Strength Grading of Timber in the UK and Ireland in 2021
Journal Article
Ridley-Ellis, D., Gil-Moreno, D., & Harte, A. M. (2022)
Strength Grading of Timber in the UK and Ireland in 2021. International Wood Products Journal, 13(2), 127-136. https://doi.org/10.1080/20426445.2022.2050549
This paper summarises the state of the art for strength grading of construction timber grown in the United Kingdom and the Republic of Ireland. It includes the latest approval...
Guessing the strength of UK timber. Grading explained (a bit)
Presentation / Conference
Ridley-Ellis, D. (2013, November)
Guessing the strength of UK timber. Grading explained (a bit)
Event for Chartered Environmentalists, Foresters and other environmental professions
Torsion tests on small and large-scale RHS with circular wall cut-outs
Conference Proceeding
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 th...
Correction of Evanescent Wave Influence on the Flexural Wave Velocity and Wavelength Estimation Based on a Mode Shape Function
Journal Article
Pantelić, F., Šumarac Pavlović, D., Mijić, M., & Ridley-Ellis, D. (2022)
Correction of Evanescent Wave Influence on the Flexural Wave Velocity and Wavelength Estimation Based on a Mode Shape Function. Archives of Acoustics, 47(4), 539-546. https://doi.org/10.24425/aoa.2022.142017
The aim of this research is to use a simple acoustic method of a very near field recording, which enables measurement and display of oscillation modes, to estimate the velocit...