Investigation of Nailed Timber Connections Using the Laser Interferometry Method

Author:

Savytskyi Mykola1,Shekhorkina Svitlana1,Kesariiskyi Alexander2,Kondrashchenko Valeriy3,Dukát Stanislav4

Affiliation:

1. Department of Reinforced Concrete and Stone Structures, State Higher Education Establishment “Pridniprovs’ka State Academy of Civil Engineering and Architecture”, Dnipro , Ukraine

2. Laboratory of Complex Technologies Ltd, Pavlograd , Ukraine

3. Department of Building Materials and Technologies, Moscow State University of Railway Engineering, Moscow , Russia

4. Department of Building Constructions, Slovak University of Technology in Bratislava, Bratislava , Slovak Republic

Abstract

Abstract The paper presents an adapted methodology of laser holographic interferometry for an investigation of the stress-strain state of nailed timber connections. During the study the possibility of detecting local deformations in the connection were verified. The optimum conditions for fixing the samples and the loading ranges to ensure an optimal interference pattern were determined. An investigation of the peculiarities of the interaction between the elements and the stress-strain behavior of nailed timber connections was performed. The experimental data obtained on the stress-strain behavior of a nailed timber connection using the laser holographic interferometry method have sufficient repeatability between different series and can also be used as a criterion verification for a finite-element model.

Publisher

Walter de Gruyter GmbH

Reference21 articles.

1. Aleksandrov, Y., Bonch-Bruyevich, A. (1967) Исследование поверхностных деформаций тел с помощью голограммной техники (Investigation of the surface deformations of bodies with the help of a hologram technique). Journal of Technical Physics, Vol. 37, pp. 360-369 [in Russian].

2. Benfratello S., Camera , A. (2009) Experimental analysis of flexural behaviour of glued lamellar wood by speckle interferometry. Available at: http://www.dipmat.univpm.it/aimeta2009/Atti%20Congresso/MECCANICA_STRUTTURE/BenBenfrate_paper266.pdf, (accessed at 31/10/2017).

3. EN 26891:1991. Timber structures - joints made with mechanical fasteners - general principles for the determination of strength and deformation characteristics. European Committee for Standardization, Brussels, Belgium.

4. Branco, J., Cruz, P. (2004) Nailed connections between Pinus Pinaster Ait. Members. Available at: http://support.sbcindustry.com/Archive/2004/jun/Paper_224.pdf, (accessed at 31/10/2017).

5. Tonon, J. E., Moreno J. R. S., Francisco, J. C. S., Fogal, M. L. F. (2015) Evaluation of Shear Resistance of Bolted Connections in Wood/Wood and Wood/Steel Plate/Wood. American Journal of Materials Science, Vol. 5 No. 2, pp. 47-52.

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