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62 results

The influence of particle geometry and the intermediate stress ratio on the shear behavior of granular materials

Journal Article
Xie, Y. H., Yang, Z. X., Barreto, D., & Jiang, M. D. (2017)
The influence of particle geometry and the intermediate stress ratio on the shear behavior of granular materials. Granular Matter, 19(2), 34-48. https://doi.org/10.1007/s10035-017-0723-8
The behavior of granular materials is very complex in nature and depends on particle shape, stress path, fabric, density, particle size distribution, amongst others. This pape...

Particle loss and volume change on dissolution: experimental results and analysis of particle size and amount effects

Journal Article
McDougall, J., Kelly, D., & Barreto, D. (2013)
Particle loss and volume change on dissolution: experimental results and analysis of particle size and amount effects. Acta geotechnica, 8(6), 619-627. https://doi.org/10.1007/s11440-013-0212-0
Soil particles may be lost through dissolution, degradation or erosion. Regardless of the process of loss, there follows a change in soil structure both in terms of phase comp...

The influence of particle-size distribution on critical state behavior of spherical and non-spherical particle assemblies

Journal Article
Jiang, M. D., Yang, Z. X., Barreto, D., & Xie, Y. H. (2018)
The influence of particle-size distribution on critical state behavior of spherical and non-spherical particle assemblies. Granular Matter, 20(80), doi:10.1007/s10035-018-0850-x
This paper presents an investigation into the effects of particle-size distribution on the critical state behavior of granular materials using Discrete Element Method (DEM) si...

Seismic liquefaction performance of strip foundations: Effect of ground improvement dimensions

Journal Article
Dimitriadi, V. E., Bouckovalas, G. D., Chaloulos, Y. K., & Aggelis, A. S. (2018)
Seismic liquefaction performance of strip foundations: Effect of ground improvement dimensions. Soil Dynamics and Earthquake Engineering, 106, 298-307. https://doi.org/10.1016/j.soildyn.2017.08.021
Evidence from field case studies, as well as from experimental and theoretical research, suggest that the detrimental effects of seismic liquefaction on the performance of sur...

Particle-scale interaction in sand-rubber mixtures and their influence on energy dissipation mechanisms

Journal Article
Fonseca, J., Riaz, A., Bernal-Sanchez, J., Barreto Gonzalez, D., McDougall, J., Miranda Manzanares, M., …Dimitriadi, V. (2019)
Particle-scale interaction in sand-rubber mixtures and their influence on energy dissipation mechanisms. Géotechnique Letters, 9(4), 1-6. https://doi.org/10.1680/jgele.18.00221
Sand-rubber mixture (SRm) behaviour is affected by rubber content (RC) whilst dissipation in sands is caused by inter-particle sliding. Dissipation in SRm is as, or more signi...

Effect of particle loss on soil behaviour.

Presentation / Conference
Kelly, D., McDougall, J., & Barreto, D. (2012, August)
Effect of particle loss on soil behaviour. Paper presented at ICSE-6 6th International Conference on Scour and Erosion
Soil particle loss can result in strength and volume reductions which are difficult to predict. This paper investigates the influence of the removal of fractions of selected p...

Settlement-The Short and the Long of it

Conference Proceeding
McDougall, J. (2011)
Settlement-The Short and the Long of it. In D. Zekkos (Ed.), Geotechnical Characterization, Field Measurement, and Laboratory Testing of Municipal Solid Waste, (76-111). https://doi.org/10.1061/41146%28395%293
Total settlement in municipal solid waste (MSW) landfills can be considerable, from 25% to 50% of original fill thickness (Bjarngard and Edgers, 1990). Some occurs very quickl...

Wearable technology and workplace epidemiology: a practical example from the field of hand-arm vibration

Presentation / Conference
Taylor, M. (2019, April)
Wearable technology and workplace epidemiology: a practical example from the field of hand-arm vibration. Poster presented at The 12th UK/Ireland 1-day Meeting on Occupational and Environmental Epidemiology
This work investigates the application of wearable technology for the collection of exposure data relevant to the study of Hand Arm Vibration Syndrome. Wearable technology des...

Estimating degradation-related settlement in two landfill-reclaimed soils by sand-salt analogues

Journal Article
McDougall, J., Fleming, I., Thiel, R., Dewaele, P., Parker, D., & Kelly, D. (2018)
Estimating degradation-related settlement in two landfill-reclaimed soils by sand-salt analogues. Waste Management, https://doi.org/10.1016/j.wasman.2018.04.013
Landfill reclaimed soil here refers to largely degraded materials excavated from old landfill sites, which after processing can be reinstated as more competent fill, thereby r...

Cycling pavement assessment using hand-arm vibration exposure

Journal Article
Taylor, M., Edgar, A., & Raine, M. (2019)
Cycling pavement assessment using hand-arm vibration exposure. Infrastructure Asset Management, 6(2), 86-101. https://doi.org/10.1680/jinam.17.00014
A defective pavement surface discourages cyclists from selecting certain routes and vibration exposure is a noticeable consequence of reduced path surface quality. Current as...
9 results

Experimental study of a strengthening technique for rubble walls used in Scottish monuments

2017 - 2018
Experimental study of the pull-out strength of anchors embedded in rubble walls and evaluation of factors affecting the efficiency of such a strengthening intervention. Historic Environment Scotland a...
Funder: Historic Environment Scotland

RSE Bilateral Exchange Programme - Statistical Entropy in Granular Materials

2018 - 2018
This research builds on existing cooperation with Dr Emoke Imre from Obuda University in Hungary. The aim of the project is to visit the institution in Budapest to further research and deliver a lec...
Funder: Royal Society of Edinburgh | Value: £280

Geotechnical analysis of recycled materials for use in a sports environment

2015 - 2015
The project will investigate the effectiveness of adding crumbed rubber to the site soil as a means of improving soil resilience to wheel loads, resisting erosion and hence reducing maintenance burden...
Funder: Scottish Funding Council | Value: £4,863

Development of a European collaborative proposal on big data and machine learning techniques for engineering numerical simulations

2018 - 2018
The PEER activity aims at the development of a Horizon 2020 large-scale research proposal across the disciplines of computational mechanics and of data science. The planned proposal will address impor...
Funder: Scottish Research Partnership in Engineering

PhD, An Investigation of the Influence of Construction Methods on the Dynamic Response of Long Span Residential Timber Floors

2021 - 2024
This PhD project will investigate the influence of optimum effectiveness of construction parameters and level of fixity to obtain satisfactory vibrational performance timber floors built with long spa...
Funder: Scottish Government | Value: £30,000

Construction on Peat

2020 - 2021
Housing Construction on Peatland: Opening up Opportunities and Minimising Disruption through Innovation – Phase 1 Feasibility of Proposed Solutions
Funder: Built Environment - Smarter Transformation (formerly CSIC) | Value: £34,590

Statistical mechanis of particle breakage, fragmentation and shape evolution during shearing of granular materials

2019 - 2019
This is a follow on project, which aims to use statistical entropy concepts to understand the behaviour of granular materials, and will fund a 4-week stay in Hungary to work with Budapest University o...
Funder: Royal Society of Edinburgh | Value: £300

Monitoring Of Railway Related Infrastructure Using Optical Fibre Sensors

2019 - 2020
Student Placement Innovation Voucher as continuation of earlier Standard Innovation Voucher in partnership with Geo-Info Ltd. This project aims to extend the earlier project by assessing the performan...
Funder: Scottish Funding Council | Value: £4,930

Mortice Lock Prototype Development

2019 - 2020
The company has designed a new lock on CAD (computer aided design) which is about 95% complete, the design needs to completed by an expert to the British standards requirements and so as the lock is ...
Funder: Scottish Funding Council | Value: £5,000
9 results

Dr Mark Taylor Appointed to BSI Working Group on Human Exposure to Mechanical Vibration and Shock

6 October 2020
Dr Mark Taylor (Lectuer in Civil Engineering) has been nominated to represent Edinburgh Napier University at a British Standards Institution Working Group (GME/21/6).

Cyclists: why uneven roads and potholes are endangering your health

26 August 2019
A HIGH-TECH bicycle which measures cyclists' exposure to potentially harmful vibrations from uneven road surfaces could be used to check the safety of cycle lanes and other routes. Back problems and ...

Japanese vibration expert joins Scottish monitoring firm Reactec

29 July 2019
Professor Setsuo Maeda, one of the world’s most respected experts in human response to vibration, has been appointed as Reactec’s chief scientific liaison – relocating from Japan to Edinburgh for the ...

Cyclists risk nerve damage from potholes and rough roads, study finds

16 October 2017
Cyclists are at risk of permanent nerve damage because of poor road surfaces, research using an innovative measuring bike has revealed.

Cobbles, potholes, and rough roads can cause nerve damage for cyclists, study finds

13 October 2017
Cyclists who regularly ride on poor road surfaces or cobbles could be at risk of suffering nerve damage in their hands and arms, a new study has found.

Cobbles, potholes, and rough roads can cause nerve damage for cyclists, study finds

9 October 2017
Cyclists who regularly ride on poor road surfaces or cobbles could be at risk of suffering nerve damage in their hands and arms, a new study has found. The study by Edinburgh Napier University found ...

Risk of poorly-maintained roads to cyclists' health highlighted

8 October 2017
Cyclists are risking permanent nerve damage due to poor road surfaces, research by Edinburgh Napier University reported in The Scotsman suggests.

Cyclists risk nerve damage from uneven street surfaces

8 October 2017
Cyclists are at risk of permanent nerve damage because of poor road surfaces in Scottish cities, research using a innovative measuring bike has revealed.

Is your commute causing you permanent nerve damage?

8 October 2017
Potholes are not just a danger to your bike - but could also cause permanent nerve damage to you, according to new research. A study by Edinburgh Napier University discovered that Hand Arm Vibration ...