Analytical stiffness analysis of adhesively bonded single-lap joints subjected to out-of-plane deflection due to tensile loading. Issue 11 (18th August 2022)

• Record Type: Journal Article
• Authors: Zimmermann, J.; Schalm, T.; Sadeghi, M. Z.; Gabener, A.; Schröder, K.-U.
• Is Part Of: Journal of adhesion. Volume 98:Issue 11(2022)
• Page Start: 1635
• Page End: 1662
• Publication Date: 2022-08-18
• Subjects: Epoxy/epoxides -- analytical models -- lap-shear -- stress analysis; Adhesion -- Periodicals; 541.33
• DOI: 10.1080/00218464.2021.1932483
• Languages: English
• ISSNs: 0021-8464

Abstract

ABSTRACT: The stiffness of adhesively bonded single-lap joints is of fundamental importance in the static and dynamic sizings of engineering structures. Nevertheless, existing analytical stiffness determination models show a large discrepancy when compared to experimental results or finite element analyses. Within the present paper, a novel analytical approach for stiffness determination of single-lap joints under tensile loading is derived, which takes the out-of-plane deformation of the adherends into account. In order to provide a comprehensive model validation, single-lap joint experiments with two different adherend materials, two different adhesives and two different bondline thicknesses are conducted. Furthermore, analytical results are compared to two-dimensional finite element analyses. The presented model shows a good agreement with stiffness determination when compared to experimental and numerical results while offering a higher degree of accuracy when compared to existing stiffness determination models.