RESEARCH ARTICLE


Numerical Analyses of Timber Columns Reinforced by Particulate Composite Material



A. L. C. de Carvalho1, F. M. Leila1, A. M. S. Dias2, A. L. Christoforo3, *, D. A. Lopes Silva4, M. E. Silveira1, F. A. R. Lahr5
1 Centre for Innovation and Technology in Composites (CITeC), Department of Mechanical Engineering, Federal University of São João del-Rei, São João del-Rei, 36307-352, Brazil
2 Department of Mechanical Engineering, Federal University of Rio Grande do Norte, Natal, 59078900, Brazil
3 Centre for Innovation and Technology in Composites (CITeC), Department of Civil Engineering (DECiv), Federal University of São Carlos (UFSCar), São Carlos, 13565-905, Brazil
4 Department of Production Engineering, Engineering School of São Carlos (EESC/USP), São Carlos, 13566-590, Brazil
5 Department of Structures Engineering (SET), Engineering School of São Carlos (EESC/USP), São Carlos, 13566-590, Brazil


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Creative Commons License
© de Carvalho et al.; Licensee Bentham Open.

open-access license: This is an open access article licensed under the terms of the Creative Commons Attribution-Non-Commercial 4.0 International Public License (CC BY-NC 4.0) (https://creativecommons.org/licenses/by-nc/4.0/legalcode), which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited.

* Address correspondence to this author at the Centre for Innovation and Technology in Composites (CITeC), Department of Civil Engineering (DECiv), Federal University of São Carlos (UFSCar), São Carlos, 13565-905, Brazil; Tel: (+55) 16 33066828; E-mail: christoforoal@yahoo.com.br


Abstract

Beams are structural elements commonly used in structure for construction designs. Usually wood is applied as structural elements and its use is very important because it is a material of renewable source, low density and satisfactory mechanical performance. When the wood surface is not properly treated, the structure can be destroyed not only by environmental conditions but also the attack of insects, compromising the structural design. This research presents the use of a particulate composite material of epoxy resin reinforced with white Portland cement in order to be applied as repair in timber columns. The mechanical performance of this material is essentially numerical, based on the Finite Element Method. The wood used in the simulation was the Eucalyptus grandis. The elastic properties were obtained from the specialist literature in the field of timber structures. The results of numerical simulations in terms of tension and buckling loads, the inclusion of the composite in the damaged regions (for all dimensions of the defects studied) provided buckling load results significantly higher than the buckling load values for the conditions without composite, and near to the values of the buckling loads without defect, highlighting the good performance of the particulate composite material in the repair of timber columns.

Keywords: Cement, Column, Composite material, Finite element method, Reinforcement, Repair, Resin, Structural reinforcement, Timber.