Arch.Appl.Mech. 70, 338-348, 2000
W.K. Vonach, F.G. Rammerstorfer
Institute of Lightweight Structures and Aerospace
TU Wien, Vienna, Austria
This contribution presents an efficient analytical model as well as a FE
computation of the critical load which leads to local stability failure
(wrinkling) in sandwich structures.
The analytical model assumes an orthotropic face layer and a thick transversely
In the last section, a more general core material is considered.
Common core materials (foams and honeycombs) can be described with good
accuracy within this model.
The main advantage of the solution is the consideration of general loading
conditions for the orthotropic face layer as well as in-plane deformations
of the core.
The results of the FE calculations and the analytical model are in good
agreement with each other.