Strength Analysis of Structurally Optimized Aluminium-Composite Tubular Lap Joints

DS 116: Proceedings of the DESIGN2022 17th International Design Conference

Year: 2022
Editor: Mario Štorga, Stanko Škec, Tomislav Martinec, Dorian Marjanović
Author: Michael J
Series: DESIGN
Institution: Friedrich-Alexander-Universität Erlangen-Nürnberg, Germany
Section: Engineering Design Practice
Page(s): 2473-2482
DOI number: https://doi.org/10.1017/pds.2022.250
ISSN: 2732-527X (Online)

Abstract

Truss structures are a stiff, economical, and efficient lightweight design, the limiting factor of these structures are usually the load transfer elements. This paper presents an analytical design method for optimized adhesive tubular lap joints between CFRP tubes and aluminium inserts. The analytically optimized design agrees very well with the numerical simulations and experimental results. Although the experiments show a highly non-linear behaviour, where a linear elastic correlation is expected, the total load capacity is only reached when the adhesive is fully plasticised.

Keywords: lightweight design, design optimisation, tubular lap joint, experimentation, composites