Wood properties & strength grading
Presentation / Conference
Ridley-Ellis, D. (2022, December)
Wood properties & strength grading. Presented at James Jones & Sons Architects' and Structural Engineers' Open Day, Lockerbie
James Jones & Sons held an open day for architects and structural engineers at its flagship sawmill site in Lockerbie.
"James Jones & Sons' new visitor building at its flags...
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...
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...
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 ...
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...
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...
Uncertainty determination of in situ airborne sound insulation measurements
Journal Article
Machimbarrena, M., Monteiro, C. R. A., Pedersoli, S., Johansson, R., & Smith, S. (2015)
Uncertainty determination of in situ airborne sound insulation measurements. Applied Acoustics, 89, 199-210. https://doi.org/10.1016/j.apacoust.2014.09.018
In building acoustics the measurement uncertainty of sound insulation measurements is traditionally either not reported or reported as stated in the corresponding standard ISO...
More than the sum of their parts - How UK Timber Houses can be Deconstructed and Reused
Conference Proceeding
Cramer, M., & Sandin, Y. (2021)
More than the sum of their parts - How UK Timber Houses can be Deconstructed and Reused. In Proceedings of the 17th meeting of the Northern European Network for Wood Science and Engineering (WSE 2021) (108-110). https://doi.org/10.5755/e01.9786090217627
The InFutUReWood project (infuturewood.info) focuses on the reuse of structural timber and is working on improving the design of buildings to facilitate deconstruction and reu...
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...
Grading of British spruce cladding battens by ring width for density, fastener performance and fire
Conference Proceeding
Ridley-Ellis, D. (2019)
Grading of British spruce cladding battens by ring width for density, fastener performance and fire. In Proceedings of the 15th Annual Meeting of the Northern European Network for Wood Science and Engineering
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 f...