All Outputs (8)

The Mechanical and Resonance Assessment of Large Clear Samples of UK-Grown Beech Wood (2019)
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 (Fagus sylvatica L.), grown in the United Kingdom. The material was largely fr... Read More about The Mechanical and Resonance Assessment of Large Clear Samples of UK-Grown Beech Wood.

Grading of British spruce cladding battens by ring width for density, fastener performance and fire (2019)
Presentation / Conference Contribution
Ridley-Ellis, D. (2019, October). Grading of British spruce cladding battens by ring width for density, fastener performance and fire. Presented at 15th Annual Meeting of the Northern European Network for Wood Science and Engineering, Lund, Sweden

The UK has a British Standard for external timber cladding, BS8605-1, in which support battens are defined as timber components of a section, grade, and durability, suitable for supporting external timber cladding. The term includes both battens (whi... Read More about Grading of British spruce cladding battens by ring width for density, fastener performance and fire.

Influence of knot area indexes on tension strength of Sitka spruce (2019)
Presentation / Conference Contribution
Gil-Moreno, D., Ridley-Ellis, D., & Harte, A. M. (2019, September). Influence of knot area indexes on tension strength of Sitka spruce. Presented at 15th Annual Meeting of the Northern European Network for Wood Science and Engineering, Lund, Sweden

It is well known that knots can reduce the strength of timber, and the selection of “critical section” for testing to EN 408 and EN 384 is typically based on the size and position of knots. In Ireland, the visual strength grading Standard IS 127 spec... Read More about Influence of knot area indexes on tension strength of Sitka spruce.

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 (2019)
Presentation / Conference Contribution
Bather, M. J., & Ridley-Ellis, D. J. (2019, September). 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. Presented at 5th International Conference on Structural He

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, in the UK, this appraisal of load-bearing timber is generally carried out b... Read More about 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.

Use of Nondestructive Techniques for Determination of Tension Parallel-to-Grain Properties of Spruce (2019)
Presentation / Conference Contribution
Gil-Moreno, D., O'Ceallaigh, C., Ridley-Ellis, D., & Harte, A. M. (2019, September). Use of Nondestructive Techniques for Determination of Tension Parallel-to-Grain Properties of Spruce. Presented at 21st International Nondestructive Testing and Evaluatio

The paper presents a study of the tension properties of Irish-grown Sitka spruce. Fifty timber pieces were destructively tested having resonant frequency and knots measured. The aim was to improve knowledge of the performance of spruce in tension and... Read More about Use of Nondestructive Techniques for Determination of Tension Parallel-to-Grain Properties of Spruce.

Quantification of chemical changes taking place in spruce wood structure following long period thermal treatment (2019)
Presentation / Conference Contribution
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

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 structure wood is susceptible to degradation in the surrounding environment... Read More about Quantification of chemical changes taking place in spruce wood structure following long period thermal treatment.

Timber grading potential of Douglas fir in the Republic of Ireland and the UK (2019)
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 higher strength classes, and while there is a relatively high proportion of... Read More about Timber grading potential of Douglas fir in the Republic of Ireland and the UK.

Lesser-used UK-grown timber (2019)
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.