Qualitative analysis of the influence of the non-linear material characteristics of flexible adhesive on the performance of lap joints
Authors:
- Paweł Szeptyński,
- Marcin Nowak
Abstract
This paper discusses the issue of a lap joint in the form of a thin film attached to a rigid base with the use of a layer of flexible adhesive exhibiting a non-linear constitutive relation between shear stress and distortional strain, which is approximated by the second-order power law. Similarity theory is used to perform a qualitative analysis of the influence of magnitude of non-linearity on the performance of the system. The introduced similarity numbers are proposed to be used in formulation of simple design tools. The analysis is performed by solving the derived governing equations for characteristic cases in a numerical way combining the fourth-order Runge-Kutta algorithm and iterative shooting ruled by a steepest descent method. The results are compared with the results of the plane stress finite element analysis. It can be observed that within considered models the influence of the material non-linearity is of minor importance and in some cases it may be almost entirely surpassed by local effects resulting from boundary conditions. For relatively small load intensity it becomes negligibly small.
- Record ID
- CUT5dcb276f53104aa380e35ae0815674fa
- Publication categories
- ;
- Author
- Journal series
- Composite Structures, ISSN 0263-8223, e-ISSN 1879-1085
- Issue year
- 2021
- Vol
- 260
- Pages
- [1-11]
- Article number
- 113539
- Other elements of collation
- rys.; tab.; wykr.; Bibliografia (na s.) - 11; Bibliografia (liczba pozycji) - 20; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 260
- Keywords in English
- flexible adhesives, non-linear elasticity, lap joint, strengthening films
- DOI
- DOI:10.1016/j.compstruct.2020.113539 Opening in a new tab
- URL
- https://www.sciencedirect.com/science/article/pii/S0263822320334681 Opening in a new tab
- Language
- eng (en) English
- Score (nominal)
- 140
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT5dcb276f53104aa380e35ae0815674fa/
- URN
urn:pkr-prod:CUT5dcb276f53104aa380e35ae0815674fa
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.