Edinburgh Napier University

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...

The relationship between bending and tension strength of Irish and UK spruce and pine

Journal Article

Gil-Moreno, D., Ridley-Ellis, D., O'Ceallaigh, C., & Harte, A. M. (2022)

The relationship between bending and tension strength of Irish and UK spruce and pine. European Journal of Wood and Wood Products, 80, 585-596. https://doi.org/10.1007/s00107-022-01787-6

The correct characterisation of wood properties is fundamental for the best utilisation of resources. In Europe, grading is defined by strength classes that are determined bas...

Test Machine Effect in the determination of modulus of elasticity for strength-graded timber

Conference Proceeding

Gil-Moreno, D., Ridley-Ellis, D., & Harte, A. M. (2021)

Test Machine Effect in the determination of modulus of elasticity for strength-graded timber. In WCTE 2021: World Conference on Timber Engineering Proceedings

This paper investigates if the relationship between the global and local moduli of elasticity (MoE), measured in bending tests, is affected by the test machines employed, and ...

Perception and use of timber in construction: A case study of Ireland and the UK

Conference Proceeding

O'Ceallaigh, C., Gil-Moreno, D., Ridley-Ellis, D., & Harte, A. M. (2021)

Perception and use of timber in construction: A case study of Ireland and the UK. In WCTE 2021: World Conference on Timber Engineering Proceedings

A survey was carried out to examine the perception of timber in construction among industry stakeholders within northwest Europe. The survey received responses from 17 countri...

Influence of knot area indexes on tension strength of Sitka spruce

Conference Proceeding

Gil-Moreno, D., Ridley-Ellis, D., & Harte, A. M. (2019)

Influence of knot area indexes on tension strength of Sitka spruce. In Proceedings of the 15th Annual Meeting of the Northern European Network for Wood Science and Engineering

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 posi...

Use of Nondestructive Techniques for Determination of Tension Parallel-to-Grain Properties of Spruce

Conference Proceeding

Gil-Moreno, D., O'Ceallaigh, C., Ridley-Ellis, D., & Harte, A. M. (2019)

Use of Nondestructive Techniques for Determination of Tension Parallel-to-Grain Properties of Spruce. In Proceedings: 21st International Nondestructive Testing and Evaluation of Wood Symposium, Freiburg, Germany 2019 (233-240

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. T...

Potential of noble fir, Norway spruce, western red cedar and western hemlock grown for timber production in Great Britain

Thesis

Gil-Moreno, D. Potential of noble fir, Norway spruce, western red cedar and western hemlock grown for timber production in Great Britain. (Thesis)

Edinburgh Napier University. Retrieved from http://researchrepository.napier.ac.uk/Output/1506120

The limited range of commercial timber species in Great Britain has led the forestry sector to consider wider planting of other species. This research addresses wood propertie...

TG1/201804/25rev Derivation of MTG grading machine settings for Douglas fir (IE & GB, C classes)

Report

Ridley-Ellis, D., & Gil-Moreno, D. (2018)

TG1/201804/25rev Derivation of MTG grading machine settings for Douglas fir (IE & GB, C classes). WoodProps for Ireland project

Grading machines MTG 960 mtgBATCH 962 mtgBATCH 966 MTG 920 mtgBATCH 922 mtgBATCH 926 Douglas fir (Pseudotsuga menziesii) (PSMN) Permitted timber sizes Thickness: 33 mm to 84...

Using the right Modulus of Elasticity to get the best grades out of softwood timber species in Great Britain

Conference Proceeding

Gil-Moreno, D., Ridley-Ellis, D., & McLean, P. (2016)

Using the right Modulus of Elasticity to get the best grades out of softwood timber species in Great Britain. In WCTE 2016 World Conference on Timber Engineering e-book Full Papers

The correct characterisation of modulus of elasticity in bending is fundamental for timber grading, especially when that property limits the allocation to a strength class. Th...

Combining of results from visual inspection, non-destructive testing and semi-destructive testing to predict the mechanical properties of Western Hemlock

Presentation / Conference

Bather, M., Ridley-Ellis, D. & Gil-Moreno, D. (2016, August)

Combining of results from visual inspection, non-destructive testing and semi-destructive testing to predict the mechanical properties of Western Hemlock. Paper presented at World Conference on Timber Engineering, Vienna, Austria

Current methods of assessing the mechanical properties of in-situ timber are limited, particularly with regard to estimating bending strength and stiffness. The aim of this re...