Optimierung der Verbindungsstellen von Sandwichstrukturen mit additiv gefertigtem Kern

DFX 2017: Proceedings of the 28th Symposium Design for X, 4-5 October 2017, Bamburg, Germany

Year: 2017
Editor: Dieter Krause, Kristin Paetzold, Sandro Wartzack
Author: Johann, Schwenke; Jan, Oltmann; Dieter, Krause
Series: DfX
Institution: TU Hamburg-Harburg
Section: Lightweight Design
Page(s): 191-202
ISBN: 978-3-946094-20-3-16

Abstract

In fiber composite structures failure often occurs at the load introduction. Therefore, these points are reinforced by the addition of material, which how-ever increases component weight. The paper presents how detailed simula-tion models as well as new design possibilities through additive manufacturing can be used for structural improvements of the load introduction into honey-comb sandwich structures. A structural optimization is performed. It is found that the initial and boundary conditions for the optimization have a strong influence on the product design. Therefore, different optimization approaches are compared. Numerical results are validated by experimental tests.

Keywords: Honeycomb Sandwich Structures, Inserts, Topology Optimization, Additive Manufacturing