Publication detail

Experimental Study of the Impact of Notches Made in the Front Edge of Adherends on the Properties of Static and Fatigue Strength of Adhesive Joints

KUBIT, A. ZIELECKI, W. BEREZOWSKI, W. PERŁOWSKI, R. ŁABNO, K. KATRŇÁK, T.

Original Title

Experimental Study of the Impact of Notches Made in the Front Edge of Adherends on the Properties of Static and Fatigue Strength of Adhesive Joints

Type

journal article - other

Language

English

Original Abstract

This paper presents the effect of simple structural changes consisting in making notches on the edge of adherends on the static and fatigue properties of adhesive joints. The study is based on the set of experimental static strength tests of the single lap shear adhesive joints. It has been shown that a slight increase in load capacity is possible by using adhesive-filled notches. However, this structural modification leads to an increase in the standard deviation of test results. Based on the fatigue strength tests done at the limit number of cycles equal to 2×10^6, it was shown that the use of notches on the front edge of adherends, which are filled with adhesive, can significantly increase the fatigue lifetime of the joint. The effect is shown in the area of low-cycle fatigue, where for fatigue stress with a maximum value of 11.5 MPa, an increase in the average value of fatigue lifetime by 481.5% was shown for joints with notches. On the basis of fractography analyses using SEM microscopy, it was shown that the positive effect of the notches is caused by the absorption of some energy by the adhesive filling the notches, due to the increased susceptibility of the adhesive in this area to elastic deformations.

Keywords

Adhesion, adhesive joints, fatigue strength, high cycle fatigue, S-N curves

Authors

KUBIT, A.; ZIELECKI, W.; BEREZOWSKI, W.; PERŁOWSKI, R.; ŁABNO, K.; KATRŇÁK, T.

Released

24. 3. 2023

Publisher

Technical University of Košice

Location

Košice, Slovak Republic

ISBN

1335-2393

Periodical

Acta Mechanica Slovaca

Year of study

27

Number

1

State

Slovak Republic

Pages from

6

Pages to

14

Pages count

9

URL

https://www.actamechanica.sk/artkey/ams-202301-0001_experimental-study-of-the-impact-of-notches-made-in-the-front-edge-of-adherends-on-the-properties-of-static-and.php

BibTex

@article{BUT183609,
  author="Andrzej {Kubit} and Władysław {Zielecki} and Wojciech {Berezowski} and Ryszard {Perłowski} and Katarzyna {Łabno} and Tomáš {Katrňák}",
  title="Experimental Study of the Impact of Notches Made in the Front Edge of Adherends on the Properties of Static and Fatigue Strength of Adhesive Joints",
  journal="Acta Mechanica Slovaca",
  year="2023",
  volume="27",
  number="1",
  pages="6--14",
  doi="10.21496/ams.2023.010",
  issn="1335-2393",
  url="https://www.actamechanica.sk/artkey/ams-202301-0001_experimental-study-of-the-impact-of-notches-made-in-the-front-edge-of-adherends-on-the-properties-of-static-and.php"
}