Int.J.Num.Meth.Engng. 37, 2609-2629, 1994
F.G. Rammerstorfer¹, A. Starlinger² and K. Dorninger³
¹Institute of Lightweight Structures and Aerospace
TU Wien, Vienna, Austria
²AIREX AG, Sins, Switzerland
³Saturn Corp., Troy, MI, USA
This contribution deals with a computational treatment of the non-linear
behanviour of composite sandwich shells with extremely thin face layers
and a relatively thick orthotropic core, and multi-layered fiber reinforced
polymer or metal matrix composite shells.
Special emphasis is laid on algorithms which allow the consideration of
local effects, like face layer wrinkling in sandwich shells and
progressive damage or microplasticity in fibre composites, by semi-analytical
approaches implemented into a finite elment formulation.
This leads to the advantage that the shell structure must be discretized
only up to an elemnt mesh density which is sufficient for describing the
global deformation and stability behaviour.