Increasing the Strength of an Adhesive Joint

Geometry Optimization of Complex Joint Configurations for Implementation in Composite Micro Truss Structures

Master thesis (2016)

Contributors

O.K. Bergsma (mentor)
Programme
Structural Integrity & Composite (Aerospace Engineering) (TU Delft)
Copyright: © 2016 van den Berg, L.J.
More Info
expand_more

Published Date

23-11-2016

Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

Programme

Structural Integrity & Composite

Abstract

A FEM-based tool was developed for optimization of the geometry of an adhesive joint for implementation in a composite micro truss structure. A genetic algorithm was employed to optimize the adhesive fillet and adherend local end geometry towards a uniform state of strain in the adhesive layer. It was found that the peak maximum principal strain in the adhesive has been reduced up to 36.8 %. However, it was concluded that the optimized joint configurations are unfeasible for implementation in composite micro truss structures as the joint efficiency was estimated to be below 1.0 %.