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19 results

Analysis of a wooden specimen's mechanical properties through acoustic measurements in the very near field

Journal Article
Pantelić, F., Mijić, M., Šumarac Pavlović, D., Ridley-Ellis, D., & Dudeš, D. (2020)
Analysis of a wooden specimen's mechanical properties through acoustic measurements in the very near field. Journal of the Acoustical Society of America, 147(4), EL320-EL325. https://doi.org/10.1121/10.0001030
This paper presents the method for prediction of some basic mechanical parameters of a wood specimen by using simple instrumentation. The standard acoustic method for assessme...

The Mechanical and Resonance Assessment of Large Clear Samples of UK-Grown Beech Wood

Journal Article
Ridley-Ellis, D. (2019)
The Mechanical and Resonance Assessment of Large Clear Samples of UK-Grown Beech Wood. Pro Ligno, 15(4), 32-39
The paper presents the results of non-destructive longitudinal resonance (impulse excitation technique), and mechanical flexural testing, of a batch of European beech wood (Fa...

Quantification of chemical changes taking place in spruce wood structure following long period thermal treatment

Presentation / Conference
Popescu, C., Ridley-Ellis, D., & Popescu, M. (2019, August)
Quantification of chemical changes taking place in spruce wood structure following long period thermal treatment. Paper presented at 2DCOS-10, The 10th International Symposium on Two-dimensional Correlation Spectroscopy, Changchun, China
Wood is a natural composite polymer containing different amounts of cellulose, lignin and hemicelluloses and some other low molecular compounds (i.e. extractives). Due to its ...

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...

Lesser-used UK-grown timber

Book Chapter
Ridley-Ellis, D. (2019)
Lesser-used UK-grown timber. In TRADA Timber Industry Yearbook 2019, 200-205
Daniel Ridley-Ellis looks at the grading properties of different species in comparison with the highly commercial Sitka spruce.

Grading of British Timber

Journal Article
Ridley-Ellis, D. (2018)
Grading of British Timber. The Full Circle: The Journal of the Association of Scottish Hardwood Sawmillers, 34-36
A summary of grading of home grown timber for the magazine of the Association of Scottish Hardwood Sawmillers (ASHS).

Some thresholds for grading British grown spruce to optimised strength classes using longitudinal resonance

Conference Proceeding
Ridley-Ellis, D., Adams, S., & Lehneke, S. (2018)
Some thresholds for grading British grown spruce to optimised strength classes using longitudinal resonance
The main commercial species in the UK and Ireland is Sitka spruce (Picea sitchensis), which is graded in combination with a small amount of Norway spruce (P. abies). It is typ...

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. Presented at Timber 2018
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 ...

The daily cycle of moisture content expansion and contraction in UK-grown Sitka spruce trees

Presentation / Conference
Adams, S., & Ridley-Ellis, D. (2018, June)
The daily cycle of moisture content expansion and contraction in UK-grown Sitka spruce trees. Paper presented at Timber 2018, London
The diameter of five dominant Sitka spruce (Picea sitchensis) trees at Griffin Forest (near Aberfeldy, Scotland) were monitored at two minute intervals with dendrometers betwe...

Impulse excitation measurement of small changes in elastic moduli and damping using R

Journal Article
Ridley-Ellis, D., Libeau, M., & Mignerat, D. (2018)
Impulse excitation measurement of small changes in elastic moduli and damping using R. International Wood Products Journal, 1-6. https://doi.org/10.1080/20426445.2018.1475928
Impulse excitation is commonly used to assess wood stiffness in both scientific and industrial settings. Modes of vibration are excited by a mechanical impulse and their reson...
12 results

SIRT 2019-20 (WP1&2)

2019 - 2020
Our research activities are focused on understanding the physical and mechanical properties of wood and how these affect its performance in different applications. Our main aim is to better understand...
Funder: Forestry Commission Scotland | Value: £96,000

InFutUReWood

2019 - 2022
Timber and construction research
Funder: European Commission | Value: £122,942

SIRT 2018-19 (WP1&2)

2018 - 2019
Our research activities are focused on understanding the physical and mechanical properties of wood and how these affect its performance in different applications. Our main aim is to better understand...
Funder: Forestry Commission Scotland | Value: £99,000

SIRT WP2 2017-18

2017 - 2018
Timber grading standards support ensuring standards are good for the domestic timber industries, and supporting industry in using them
Funder: Forestry Commission Scotland | Value: £42,500

SIRT WP1 2017-18

2017 - 2018
Applied research and knowledge transfer addressing industry needs – as set out by the SIRT management board. This includes providing information and advice to industry sponsors
Funder: Forestry Commission Scotland | Value: £107,500

Extractives database support

2017 - 2018
Maintenance and hosting of website database developed in previous project
Funder: Forestry Commission Scotland | Value: £3,000

Appearance grading Scots pine timber for joinery

2016 - 2017
This one year project will undertake a literature review and physical testing of Scots pine logs and boards. The aim of the project is to develop a predictive model of the knot characteristics of boar...
Funder: The Research Funding Council of Norway | Value: £28,000

Mobility grant with Ukrainian National Forestry University

2016 - 2017
British Council "Mobility Grant for Leadership Development Project". Funds visit by 6 persons from Ukraine to Edinburgh to seek potential collaborations in education and work based learning.
Funder: British Council | Value: £7,200

Extractive components of Scottish roundwood

2015 - 2015
To investigate the extractives that are available in Sitka sprice, Scots pine and hybrid larch. To understand how the extractives vary between crop parts e.g. heartwood, bark, stumps, brash and thinni...
Funder: Forestry Commission Scotland | Value: £15,623

Timber grading standards support (Workpackage 2)

2014 - 2018
Provide support to the forest industry through representation on various GB and European committees, and to provide dissemination and facilitate events to the sawmill industy.
Funder: Forestry Commission Scotland | Value: £130,000

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