Browsing College of Engineering and Informatics by Author "Harte, Annette M."

Now showing items 21-40 of 65

    • Flexural reinforcement of glue-laminated timber beams using prestressed FRP plates. 

      Brady, James F.; Harte, Annette M. (NetComposites Limited, 2009-09-01)
      Fibre-reinforced polymer (FRP) plates have been used successfully to enhance the structural performance of glue-laminated (glulam) timber beams. Unreinforced glulams usually fail in tension in a brittle fashion. The addition ...

    • A global-local fretting analysis methodology and design study for the pressure armour layer of dynamic flexible marine risers 

      O'Halloran, Sinéad; Connaire, Adrian D.; Harte, Annette M.; Leen, Sean B. (Elsevier, 2019-09-19)
      In this paper, a global-local fretting design methodology for the pressure armour layer of flexible marine risers is outlined. This includes global dynamic riser analysis, geometrical and analytical sub-models and local ...

    • Glued-in basalt FRP rods as moment connections in box section frames 

      O’Neill, Caoimhe; McPolin, Daniel; Taylor, Su; Harte, Annette M. (TU Verlag Wien, 2016-08-22)
      This paper presents an experimental programme that investigates the application of glued-in rods as moment connections in a post and beam connection. Nine such frame corners were constructed of box sections using ...

    • The influence of age on the timber properties and grading of Scots pine and larch in Ireland 

      Gil-Moreno, David; Manso, Rubén; O’Ceallaigh, Conan; Harte, Annette M. (Oxford University Press, 2023-06-13)
      Scots pine (Pinus sylvestris L.) and larch (Larix spp.) are two species that could contribute to diversifying Ireland’s timber supply. However, there is little knowledge about their properties as well as their variation ...

    • Influence of connection systems on serviceability response of CLT timber flooring 

      Uí Chúláin, Caitríona; Sikora, Karol; Harte, Annette M. (TU Verlag Wien, 2016-08-22)
      In this paper finite element analysis of a five layer cross-laminated timber (CLT) rectangular floor is presented. The model was developed using 3D shell elements with linear elastic orthotropic material properties. Support ...

    • The influence of crown and stem characteristics on timber quality in softwoods 

      Krajnc, Luka; Farrelly, Niall; Harte, Annette M. (Elsevier, 2018-12-28)
      The relationships between several crown and tree properties and timber quality were examined on three softwood species: Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco), Norway spruce (Picea abies (L.) H. Karst) and Sitka ...

    • The influence of panel lay-up on the characteristic bending and rolling shear strength of CLT 

      O'Ceallaigh, Conan; Sikora, Karol; Harte, Annette M. (MDPI, 2018-08-21)
      The objective of this study was to characterise the behaviour of cross laminated timber (CLT) panels and the influence of the panel lay-up on the failure strength. Three different panel configurations of thickness, 60 ...

    • Infrared thermography technique as an in-situ method of assessing heat loss through thermal bridging 

      O’Grady, Małgorzata; Lechowska, Agnieszka A.; Harte, Annette M. (Elsevier, 2016-11-17)
      A key aspect in assessing the thermal standard of building envelopes is the quantification of the heat loss though thermal bridging, which can be expressed in terms of the linear thermal transmittance Psi. Values of W may ...

    • An investigation of the viscoelastic creep behaviour of basalt fibre reinforced timber elements 

      Conan O'Ceallaigh, Conan; Sikora, Karol; McPolin, Daniel; Harte, Annette M. (Elsevier, 2018-08-01)
      An investigation was carried out to examine the effect of flexural reinforcement on the long-term behaviour of timber beams. Creep tests, utilising statistically matched groups, were performed under Service Class 1 conditions ...

    • Irish timber - characterisation, potential and innovation 

      Harte, Annette M.; McPolin, Daniel; Karol Sikora, Karol; Sikora, Karol; O’Neill, Caoimhe; O’Ceallaigh, Conan (Civil Engineering Research Association of Ireland (CERAI), 2014-09-28)
      In order to increase the utilisation of Irish timber in construction and novel engineered wood products, the mechanical and physical properties of the material must be established. For timber products used for structural ...

    • Life cycle assessment of sitka spruce forest products grown in Ireland 

      Dolan, Desmond; O’Ceallaigh, Conan; Gil-Moreno, David; McGetrick, Patrick J.; Harte, Annette M. (Springer, 2023-08-28)
      Purpose The purpose of this study is to quantify the environmental impacts of Sitka spruce timber products harvested from the forestry sector in Ireland. This data is typically country-specific and is required to accurately ...

    • Mass timber - the emergence of a modern construction material 

      Harte, Annette M. (Taylor & Francis, 2017-08-31)
      In the move towards sustainable construction, timber and wood-based products are becoming increasingly important structural materials. The introduction of mass timber products with excellent load carrying characteristics ...

    • Mechanical characterisation of green Sitka spruce logs 

      Krajnc, Luka; Farrelly, Niall; Harte, Annette M. (NUI Galway, 2016-08-29)
      ABSTRACT: Timber is by its nature a very heterogeneous material. Many different factors impact its mechanical properties, from tree species to environment (climate, competition, soil…). While a number of studies in the ...

    • Mechanical properties estimation by non-destructive testing of Irish hardwood round timber from thinnings for construction purposes 

      Llana, Daniel F.; Short, Ian; O'Ceallaigh, Conan; Harte, Annette M. (Department of Forestry Policy and Economics, University of Sopron, Hungary, 2018-10-25)
      Thinning involves the removal of competitors of high quality trees, and trees for extraction racks, all to favour the growth of the selected trees. Many felled trees are small-diameter and in Ireland hardwood thinnings are ...

    • Mechanical properties of compressed wood 

      Namari, Siavash; Drosky, Lukas; Pudlitz, Bianka; Haller, Peer; Sotayo, Adeayo; Bradley, Daniel; Mehra, Sameer; O'Ceallaigh, Conan; Harte, Annette M.; El-Houjeyri, Imane; Oudjene, Marc; Guan, Zhongwei (Elsevier, 2021-08-03)
      Wood is a natural composite material. However, its relatively low mechanical properties restrict the use in advanced structural applications but recent studies have shown that Compressed Wood (CW), with superior mechanical ...

    • The mechano-sorptive creep behaviour of basalt FRP reinforced timber elements in a variable climate 

      O'Ceallaigh, Conan; Sikora, Karol; McPolin, Daniel; Harte, Annette M. (Elsevier, 2019-09-25)
      The use of Fibre Reinforced Polymer (FRP) reinforcement has been shown to improve the short-term flexural behaviour of timber elements. This is particularly important when reinforced elements are subjected to a variable ...

    • Mechano-sorptive creep in reinforced glulam 

      O'Ceallaigh, Conan; Sikora, Karol; McPolin, Daniel; Harte, Annette M. (National University of Ireland Galway, 2018-08-20)
      An investigation was carried out to examine the effect of reinforcement on the creep behaviour of FRP reinforced timber elements in a controlled variable climate. Creep is accelerated by moisture variations due to a ...

    • Modelling of fretting in the pressure armour layer of flexible marine risers 

      O'Halloran, S.M.; Connaire, A.D.; Harte, Annette M.; Leen, Sean B. (Elsevier, 2016-03-04)
      This paper presents a computational methodology for frictional contact mechanics of the pressure armour layer in flexible risers. This will allow, for the first time, quantification of key fretting variables, such as contact ...

    • Modelling the hygro-mechanical creep behaviour of FRP reinforced timber elements 

      O'Ceallaigh, Conan; Sikora, Karol; McPolin, Daniel; Harte, Annette M. (Elsevier, 2020-06-20)
      A fully coupled moisture-displacement finite element model has been developed to predict the viscoelastic, mechano-sorptive and swelling/shrinkage behaviour of FRP reinforced timber elements when stressed under long-term ...

    • Modified wood as compression reinforcement of timber perpendicular to the grain 

      O’Ceallaigh, Conan; Conway, Michael; Mehra, Sameer; Harte, Annette M. (National University of Ireland Galway, 2021-08-09)
      An investigation was carried out to examine the potential to utilise modified wood as a reinforcement for timber subjected to compression loading perpendicular to the grain. In recent years there has been a significant ...