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Outputs (147)

BM TRADA Webinar Part 2: Machine Strength Grading (2024)
Presentation / Conference Contribution
Ridley-Ellis, D. (2024, April). BM TRADA Webinar Part 2: Machine Strength Grading. Presented at BM TRADA Technical Timber Webinars 2024, Online

Strength grading of solid timber – overcoming some common misconceptions.

Slides covering machine strength grading, stamps, and EN1912 revision

Timber (2024)
Book Chapter
Cramer, M., & Tamagnone, G. (2024). Timber. In H. Hartman, & J. Jack Williams (Eds.), Materials: An environmental primer (230-253). RIBA

Models to predict the radial variation of stiffness, strength, and density in planted noble fir, Norway spruce, western hemlock, and western red cedar in Great Britain (2023)
Journal Article
Gil-Moreno, D., MClean, J. P., & Ridley-Ellis, D. (2023). Models to predict the radial variation of stiffness, strength, and density in planted noble fir, Norway spruce, western hemlock, and western red cedar in Great Britain. Annals of Forest Science, 80, Article 48. https://doi.org/10.1186/s13595-023-01214-7

Key message: This study compares the measured radial variation in wood stiffness, strength, and density of noble fir, Norway spruce, western hemlock, and western red cedar by developing mixed-effects models for each property using age as the explanat... Read More about Models to predict the radial variation of stiffness, strength, and density in planted noble fir, Norway spruce, western hemlock, and western red cedar in Great Britain.

Timber in Construction: Skills Action Plan (2023)
Report
Duncheva, M., Vokes, C., Connell-Skinner, K., & Hairstans, R. (2023). Timber in Construction: Skills Action Plan. Hereford: New Model Institute for Technology & Engineering (NMITE)

The UK needs to increase the use of timber in construction to achieve its Net Zero targets. But strengthening timber supply chains and boosting use of homegrown timber needs a workforce able to make best use of this renewable resource.

The Timber... Read More about Timber in Construction: Skills Action Plan.

Wood properties & strength grading (2022)
Presentation / Conference Contribution
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 flagship sawmill site in Lockerbie has attracted considerable interest in the... Read More about Wood properties & strength grading.

Structural Material Demand and Associated Embodied Carbon Emissions of the United States Building Stock: 2020-2100 (2022)
Journal Article
Arehart, J., Pomponi, F., D'Amico, B., & Srubar, W. (2022). Structural Material Demand and Associated Embodied Carbon Emissions of the United States Building Stock: 2020-2100. Resources, Conservation and Recycling, 186, Article 106583. https://doi.org/10.1016/j.resconrec.2022.106583

This study uses material flow analysis to estimate the material stocks and flows and associated upfront embodied carbon emissions for gravity building structural systems in the United States. Seven scenarios that align with the shared-socioeconomic p... Read More about Structural Material Demand and Associated Embodied Carbon Emissions of the United States Building Stock: 2020-2100.

Dangerous Liaisons: Neoliberal Tropes of the ‘Normal’ and ‘Middle-Class Respectability’ in the Post-socialist LG(BT) Activism (2022)
Book Chapter
Kulpa, R. (2022). Dangerous Liaisons: Neoliberal Tropes of the ‘Normal’ and ‘Middle-Class Respectability’ in the Post-socialist LG(BT) Activism. In M. Blidon, & S. D. Brunn (Eds.), Mapping LGBTQ Spaces and Places. A Changing World (279-291). Springer. https://doi.org/10.1007/978-3-031-03792-4_17

This chapter explores the emerging, post-1989 logics of neoliberalisation of gender and sexuality activism in Central-Eastern Europe (CEE). By looking at a case study from the early 2000s LG(BT) activism in Poland (the impactful “Niech Nas Zobaczą” /... Read More about Dangerous Liaisons: Neoliberal Tropes of the ‘Normal’ and ‘Middle-Class Respectability’ in the Post-socialist LG(BT) Activism.

Design of Timber Buildings for Deconstruction and Reuse — Three methods and five case studies (2022)
Report
Sandin, Y., Shotton, E., Cramer, M., Sandberg, K., Walsh, S. J., González-Alegre, V., Östling, J., Cristescu, C., Íñiguez-González, G., Llana, D. F., Carlsson, A., Uí Chúláin, C., Jackson, N., García Barbero, M., & Zabala Mejia, A. (2022). Design of Timber Buildings for Deconstruction and Reuse — Three methods and five case studies. ForestValue

There is a need for a shift towards circular economy in the construction sector and design philosophies as Design for Deconstruction and Reuse (DfDR) and Design for Adaptability (DfA) are being developed as means to design out waste and enhance resou... Read More about Design of Timber Buildings for Deconstruction and Reuse — Three methods and five case studies.

Overview of the WoodProps Programme 2017-2020 Wood Properties for Ireland (2022)
Digital Artefact
Gil-Moreno, D., O’Ceallaigh, C., Ridley-Ellis, D., & Harte, A. (2022). Overview of the WoodProps Programme 2017-2020 Wood Properties for Ireland

Wood Properties for Ireland (WoodProps), funded by the Forest Sector Development Division of DAFM, is a joint Programme between the Timber Engineering Research Group (TERG) at NUI Galway (NUIG) and the Centre for Wood Science and Technology at Edinbu... Read More about Overview of the WoodProps Programme 2017-2020 Wood Properties for Ireland.

Wood Information Sheet WIS 2/3-67 Specifying British-grown timbers (2022)
Other
Ridley-Ellis, D. (2022). Wood Information Sheet WIS 2/3-67 Specifying British-grown timbers. [pdf]

The purpose of this Wood Information Sheet (WIS) is to summarise the characteristics, and the current and potential uses, of timber grown in the UK (England, Scotland, Wales and Northern Ireland), which we also refer to in this WIS as ‘British-grown... Read More about Wood Information Sheet WIS 2/3-67 Specifying British-grown timbers.

Manufacturing A Biogenic Built Environment (2022)
Book Chapter
Hairstans, R. Manufacturing A Biogenic Built Environment. In Timber Industry Yearbook 2022 (77-81). Buckinghamshire: BM TRADA

Robert Hairstans discusses the Biogenic Built Environment Framework: collaborative projects where research, innovation, commercialisation and education work in concert.

The relationship between bending and tension strength of Irish and UK spruce and pine (2022)
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 based on either bending or tension tests. The European standards give equation... Read More about The relationship between bending and tension strength of Irish and UK spruce and pine.

Photogrammetric Evaluation of Glulam Timber Shear Modulus Using Torsion Test Method and Dual Stereo Vision System (2021)
Journal Article
Mohamed, A., Deng, Y., Zhang, H., Wong, S. H. F., Uheida, K., Zhang, Y., Lehmann, M., & Quan, Y. (2021). Photogrammetric Evaluation of Glulam Timber Shear Modulus Using Torsion Test Method and Dual Stereo Vision System. European Journal of Wood and Wood Products, 79, 1209-1223. https://doi.org/10.1007/s00107-021-01729-8

The shear modulus of timber and timber-based composite materials is a fundamental me-chanical property which is used in the design of timber and engineered wood products. The problem of experimentally determining appropriate values of shear modulus f... Read More about Photogrammetric Evaluation of Glulam Timber Shear Modulus Using Torsion Test Method and Dual Stereo Vision System.

Alternative UK timber species (2021)
Book Chapter
Adams, S., & Ridley-Ellis, D. (2021). Alternative UK timber species. In Timber 2021 Industry Yearbook (104-111). High Wycombe: TRADA

Steven Adams and Dan Ridley-Ellis discuss the findings of a recent research project into the properties and potential uses of lesser-used species in the UK.

Grade in Britain: enabling a wider range of home grown species (2021)
Book Chapter
Ridley-Ellis, D. (2021). Grade in Britain: enabling a wider range of home grown species. In Timber 2020 Industry Yearbook (132-137). High Wycombe: TRADA

Dan Ridley-Ellis summarises the different home-grown species currently available, and looks to the future of strength grading for an increasingly wide range of species.

Estimating mechanical properties of clear wood from ten‐year‐old Melia azedarach trees using the stress wave method (2021)
Journal Article
Van Duong, D., & Ridley-Ellis, D. (2021). Estimating mechanical properties of clear wood from ten‐year‐old Melia azedarach trees using the stress wave method. European Journal of Wood and Wood Products, 79(4), 941-949. https://doi.org/10.1007/s00107-021-01664-8

The objective of this study was to examine the potential of stress wave velocity (SWV) as a rapid and non-destructive method to estimate the mechanical properties of Melia azedarach wood. The SWV, dynamic modulus of elasticity (MOE d), modulus of ela... Read More about Estimating mechanical properties of clear wood from ten‐year‐old Melia azedarach trees using the stress wave method.

InFutURe Wood Report 1: Design for deconstruction and reuse of timber structures – state of the art review (2020)
Report
Cristescu, C., Honfi, D., Sandberg, K., Sandin, Y., Shotton, E., Walsh, S., Cramer, M., Ridley-Ellis, D., Risse, M., Ivanica, R., Ui Chulain, C., Harte, A., De Arana-Fernandez, M., Llana, D., Iniguez-Gonzalez, G., Garcia Barbero, M., Nasiri, B., Hughes, M., & Krofl, Z. (2020). InFutURe Wood Report 1: Design for deconstruction and reuse of timber structures – state of the art review. ForestValue

This report represents the first publication of the InFutURe Wood project - Innovative Design for the Future – Use and Reuse of Wood (Building) Components.
InFutUReWood is supported under the umbrella of ERA-NET and financed by funding agencies from... Read More about InFutURe Wood Report 1: Design for deconstruction and reuse of timber structures – state of the art review.