Impulse excitation measurement of small changes in elastic moduli and damping using R (2018)
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 resonant frequencies measured to calculate elastic moduli. It is also possible t... Read More about Impulse excitation measurement of small changes in elastic moduli and damping using R.

Timber properties of minor conifer species in Britain and future marketing opportunities (2017)
Presentation / Conference Contribution
Ridley-Ellis, D. (2017, May). Timber properties of minor conifer species in Britain and future marketing opportunities. Presented at The National Forestry Conference for Ireland "an appraisal of the silvicultural and marketing potential of coniferous alternatives to Sitka spruce"

TG1/201703/22rev Derivation of Goldeneye 706 grading machine settings for British Spruce (2017)
Report
Ridley-Ellis, D. (2017). TG1/201703/22rev Derivation of Goldeneye 706 grading machine settings for British Spruce. CEN TC124 WG2 TG1: MiCROTEC

Goldeneye 706

MiCROTEC GmbH
Julius Durst Str. 98
IT-39042 Brixen (BZ)
www.microtec.eu

United Kingdom of Great Britain and Northern Ireland + Republic of Ireland

Sitka spruce [Picea sitchensis]
Norway spruce [Picea abies]
(WPCS)


34... Read More about TG1/201703/22rev Derivation of Goldeneye 706 grading machine settings for British Spruce.

TG1/201703/21rev Derivation of Goldeneye 702 grading machine settings for British Spruce (2017)
Report
Ridley-Ellis, D. (2017). TG1/201703/21rev Derivation of Goldeneye 702 grading machine settings for British Spruce. CEN TC124 WG2 TG1: MiCROTEC

Goldeneye 702

MiCROTEC GmbH
Julius Durst Str. 98
IT-39042 Brixen (BZ)
www.microtec.eu

United Kingdom of Great Britain and Northern Ireland + Republic of Ireland

Sitka spruce [Picea sitchensis]
Norway spruce [Picea abies]
(WPCS)


34... Read More about TG1/201703/21rev Derivation of Goldeneye 702 grading machine settings for British Spruce.

Strength grading of sawn timber in Europe: an explanation for engineers and researchers (2016)
Journal Article
Ridley-Ellis, D., Stapel, P., & Baño, V. (2016). Strength grading of sawn timber in Europe: an explanation for engineers and researchers. European Journal of Wood and Wood Products, 74(3), 291-306. https://doi.org/10.1007/s00107-016-1034-1

This paper is a concise explanation of the normative background to strength grading in Europe, addressing important aspects that are commonly misunderstood by structural engineers and timber researchers. It also highlights changes that are being made... Read More about Strength grading of sawn timber in Europe: an explanation for engineers and researchers.

Current UK timber grading and engineered wood products. (2016)
Presentation / Conference Contribution
Ridley-Ellis, D. (2016, February). Current UK timber grading and engineered wood products

Timber grading seminar - Some things you should know about how strength grading works and what is changing in the standards. (2016)
Presentation / Conference Contribution
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

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 changing. It aims to demystify timber grading, tackle some widely held misconc... Read More about Timber grading seminar - Some things you should know about how strength grading works and what is changing in the standards..

Properties of UK-Grown Sitka Spruce: Extent and Sources of Variation. (2008)
Journal Article
Moore, J., Lyon, A. J., Ridley-Ellis, D., & Gardiner, B. A. (2008). Properties of UK-Grown Sitka Spruce: Extent and Sources of Variation. Timber Engineering,

Structural timber produced from Sitka spruce plantations in the UK typically achieves the requirements for the C16 strength class. However, very little is known about the variability of this plantation resource, or the factors that contribute to this... Read More about Properties of UK-Grown Sitka Spruce: Extent and Sources of Variation..

Impact of clause 5.3.2 in EN384:2010 on grading of timber - Report to UKTGC 18/05/2011
Report
Ridley-Ellis, D. (in press). Impact of clause 5.3.2 in EN384:2010 on grading of timber - Report to UKTGC 18/05/2011. Edinburgh Napier Research Repository: UK Timber Grading Committee

Report to the UK Timber Grading Committee

This report outlines the issues related to the application of clause 5.3.2 in EN384:2010 “Structural timber - Determination of characteristic values of mechanical properties and density” which is used in... Read More about Impact of clause 5.3.2 in EN384:2010 on grading of timber - Report to UKTGC 18/05/2011.