Depending on the amount of data to process, file generation may take longer.

If it takes too long to generate, you can limit the data by, for example, reducing the range of years.

Article

Download BibTeX

Title

Analysis of the adhesive spread and the thickness of the adhesive bonded joint depending on the compressive force applied to bonded materials with different surface structure

Authors

[ 1 ] Instytut Konstrukcji Maszyn, Wydział Inżynierii Mechanicznej, Politechnika Poznańska | [ P ] employee

Scientific discipline (Law 2.0)

[2.9] Mechanical engineering

Year of publication

2022

Published in

International Journal of Adhesion and Adhesives

Journal year: 2022 | Journal volume: vol. 114

Article type

scientific article

Publication language

english

Keywords
EN
  • polyurethane
  • surface roughness/morphology
  • adhesive thickness
  • joint design
Abstract

EN The thickness of the adhesive layer in a bonded joint is one of the important factors determining its strength and its recommended value varies depending on the type of the adhesive used and the type of load on the joint. Specimens for testing adhesively bonded joints with a specified thickness of the layer are usually produced under laboratory conditions using spacers of a specified thickness, and the remaining excess adhesive is removed from the specimen. In industrial conditions, this method of obtaining an appropriate thickness of the adhesive layer is not always possible and desirable. The method of adhesive spreading between the joined plates under the influence of pressure without spacers was analysed. For this purpose, 3 pairs of aluminium plates were used, differing in surface texture and roughness for the Ra parameter at 0,25 μm, above 3 μm, and above 5 μm. 0.5 ml of Bonapur RZ45 polyurethane adhesive was compressed between the plate pairs without additional force (except for the own weight of the plates) and with load of 50 N, 100 N, 250 N, and 500 N. The surface where the adhesive would be distributed was checked to estimate the resulting thickness of its layer. The size of the layer ranged from 0.09 (for the force 500N) to 0.53 mm (without additional force, only plate). The values obtained of the layer thickness in the case of using additional force are lower than recommended in the literature (0.5-2 mm) for polyurethane adhesives. The measurements showed that the roughness of the surface does not significantly affect the differences in the resulting thickness of the adhesive layer, whereas the visible surface machining footprint causes changes in the way the adhesive spreads and impacts the shape of the adhesive on the plate surface.

Pages (from - to)

103081-1 - 103081-32

DOI

10.1016/j.ijadhadh.2021.103081

URL

https://www.sciencedirect.com/science/article/pii/S0143749621002840

Ministry points / journal

100

Impact Factor

3,4

This website uses cookies to remember the authenticated session of the user. For more information, read about Cookies and Privacy Policy.