Fatigue Crack Growth Behaviour Of Surface Cracks In Glare
Author(s)
R. C. Alderliesten & J. J. Homan
Abstract
Fatigue crack growth behaviour of surface
cracks in Glare
R. C. Alderliesten & J. J. Homan
Structures and Materials Laboratory, Faculty of Aerospace Engineering,
Delft University of Technology, The Netherlands
Abstract
In Fibre Metal Laminates the cracks due to fatigue loads propagate in the metal
layers only, while the fibrefepoxy layers stay intact and bridge the crack, by
transferring loads over the crack. A special case of crack propagation in Glare is
the crack configuration where only one surface layer contains a crack. Several
investigations were performed to understand the (bridging) mechanism of this
special case in Glare and to describe it by means of calculation and prediction
methods. Tests have been performed under constant amplitude fatigue loading on
a variety of Glare laminates and test conditions, in order to obtain the necessary
data for calculation method development and validation. This paper gives an
overview of the used approaches to describe crack growth behaviour in the
Keywords
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