Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(2), 473-479 | DOI: 10.11118/actaun201664020473

Experimental Research on Load Capacity, Treatment of Adhesively Bonded Surface and Failure Process of Structural T-joint

Miroslav Müller
Department of Material Science and Manufacturing Technology, Faculty of Engineering, Czech University of Life Sciences in Prague, Kamıcká 129, 165 21 Praha 6-Suchdol, Czech Republic

In this paper the mechanical behaviour of structural two-component epoxy adhesives in T-joints is experimentally investigated. The aim of this study is to analyse the impact of the adhesive bonded surface treatment on the maximum force required to cause destruction, i.e. bearing capacity of T-joints bonded with various adhesives. Experimental results showed that the type of the adhesive affected the limit values of a force required for the destruction of the adhesive bond. The effect of the bonded surface treatment was also confirmed. From the results of experiment it was proved on five tested two-component epoxy adhesives that the negative effect of the peeling forces can be reduced by mechanical treatment of the adhesive bonded surface e.g. blasting. When there is applied an unsuitable mechanical treatment of adhesive bonded surface, the decrease of the force required for the destruction of the bond was up to about 98%.

Keywords: adhesive bond, elongation, chemical treatment, loading force, mechanical treatment, time of destruction, two-component epoxy adhesives
Grants and funding:

Supported by Internal grant agency of Faculty of Engineering, Czech University of Life Sciences in Prague [No. 31140/1312/3106].

Prepublished online: May 4, 2016; Published: May 1, 2016  Show citation

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Müller, M. (2016). Experimental Research on Load Capacity, Treatment of Adhesively Bonded Surface and Failure Process of Structural T-joint. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 64(2), 473-479. doi: 10.11118/actaun201664020473
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