Determining the Shear Modulus of Sitka Spruce from Torsion Tests
Journal Article
Khokhar, A. M., Zhang, H., Ridley-Ellis, D., & Moore, J. (2008)
Determining the Shear Modulus of Sitka Spruce from Torsion Tests. 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...
Timber grading seminar - Some things you should know about how strength grading works and what is changing in the standards.
Presentation / Conference
Ridley-Ellis, D. (2016, February)
Timber grading seminar - Some things you should know about how strength grading works and what is changing in the standards. Presented at Timber grading seminar, Glasgow, Scotland
Presentations from the seminar on timber grading.
"This grading seminar will give you a crash course in timber strength grading, what it is, how it works, and how it is chang...
Strength grading of timber in the UK in 2018
Presentation / Conference
Ridley-Ellis, D. (2018, June)
Strength grading of timber in the UK in 2018. Paper presented at Timber 2018 (By the Wood Technology Society of IOM3), London
This paper summarises the state-of-the-art of strength grading of UK-grown timber. It lists the following information along with the primary references: visual grading grades ...
TG1/0211/14rev: Derivation of GoldenEye-706 Grading Machine Settings for British Spruce
Working Paper
Ridley-Ellis, D., & Moore, J. R. (2011)
TG1/0211/14rev: Derivation of GoldenEye-706 Grading Machine Settings for British Spruce
Confidential report for CEN TC124 WG2 TG1
Grading machine: GoldenEye-706
Manufacturer: MiCROTEC GmbH
Growth area: United Kingdom and Ireland
Species:
Sitka spruce (Picea sitch...
Potential for estimating the age of instruments by characterisation of wood properties via acoustics.
Conference Proceeding
Ridley-Ellis, D., & Popescu, C. (2014)
Potential for estimating the age of instruments by characterisation of wood properties via acoustics
The performance of musical instruments is sensitive to several wood properties that are affected by aging. These wood properties also change with temperature and humidity in w...
TG1/201410/20: Derivation of ViSCAN-PLUS grading machine settings for UK larch
Working Paper
Ridley-Ellis, D. (2014)
TG1/201410/20: Derivation of ViSCAN-PLUS grading machine settings for UK larch
Confidential report for CEN TC124 WG2 TG1
Grading machine: ViSCAN-COMPACT
Manufacturer: MiCROTEC GmbH
Growth area: United Kingdom
Species:
European larch Larix decidua
Hybrid ...
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...
Timber grading potential of Douglas fir in the Republic of Ireland and the UK
Journal Article
Gil-Moreno, D., Ridley-Ellis, D., & Harte, A. (2019)
Timber grading potential of Douglas fir in the Republic of Ireland and the UK. International Wood Products Journal, 10(2), 64-69. https://doi.org/10.1080/20426445.2019.1617984
Results of the recently approved machine control grading settings for Douglas fir in the Republic of Ireland and the UK have shown that the species can be graded to C18, and h...
The use of a visual grading code of practice in the UK in the assessment of the mechanical properties of in situ structural timber elements
Conference Proceeding
Bather, M. J., & Ridley-Ellis, D. J. (2019)
The use of a visual grading code of practice in the UK in the assessment of the mechanical properties of in situ structural timber elements. In SHATiS 2019: 5th International Conference on Structural Health Assessment of Timber Structures (89-98
The estimation of the mechanical properties of in situ timber elements is an essential part of the structural appraisal of many existing buildings and structures. Currently, i...
Strength class of minor conifer species, as estimated from log acoustic measurements, small-clear data and knowledge of wood property variation
Conference Proceeding
Gil-Moreno, D., Ridley-Ellis, D., & McLean, J. P. (2014)
Strength class of minor conifer species, as estimated from log acoustic measurements, small-clear data and knowledge of wood property variation. In K. Schober (Ed.), COST Action FP1004 "Experimental Research with Timber", (214-218
It is well known that wood properties vary from species to species. Additionally, trees grow wood in response to their requirement to grow in a certain environment. Therefore,...