28th Congress of the International Council of the Aeronautical Sciences, 23 - 28 September 2012, Brisbane, Australia
Paper ICAS 2012-8.9.1


ASSESSMENT OF STRUCTURAL EFFECT OF SELECTIVE STITCHING ON COMPOSITE SKIN-STIFFENER BONDING

P. Linde, N. Heltsch, L. Chapelle*, J. Filsinger**
Airbus Operations GmbH, Germany; *INSA de Lyon, France; **EADS IW, Germany

Keywords: composite, stitching, disbonding, analytical model, experimental tests

Effects of stitching in composite skin-doubler specimens is treated. Focus is placed on the effect on doubler disbonding behaviour by selective stitching. An analytical model is followed by a finite element model, discretizing the laminates of skin and doubler, as well as of the stitch yarn, with validation against tests.


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