Publisher DOI: 10.1016/j.compositesa.2018.11.017
Title: Maximizing bearing fatigue lifetime and CAI capability of fibre metal laminates by nanoscale sculptured Al plies
Language: English
Authors: Bosbach, Björn 
Baytekin-Gerngross, Melike 
Sprecher, Eike 
Wegner, Johann 
Gerngross, Mark Daniel 
Carstensen, Jürgen 
Adelung, Rainer 
Fiedler, Bodo 
Issue Date: Feb-2019
Source: Composites Part A: Applied Science and Manufacturing (117): 144-155 (2019-02)
Journal or Series Name: Composites Part A: Applied Science and Manufacturing 
Abstract (english): This paper presents an experimental investigation of multifunctional fibre metal laminates (FMLs). Metal sheets are embedded into the hybrid composites by means of glass fibre reinforced polymer (GFRP) ply substitution, avoiding any laminate thickening and providing high bearing and compression after impact (CAI) capabilities. The Al sheets (AA6082) are nanoscale sculptured to prevent premature delamination between the metal and the matrix, which commonly occurs in conventional FMLs. The laminates are manufactured by resin transfer moulding. As a result the FMLs show drastically increased mechanical properties compared to conventional GFRP laminates for structural applications, achieving values for static pin-bearing (up to 21%), static bolt-bearing (up to 2%), resistance under fatigue pin-bearing (up to 100 times), resistance under fatigue bolt-bearing (up to 28 times) and CAI (up to 9%). The pre-treatment leads to a three-dimensional mechanical interlocking surface structure with highly improved inter-ply bonding between metal surface and resin. The fracture surface demonstrates that the adhesive bond between the nanoscale sculptured surface structure of the Al and matrix remains intact. © 2018 Elsevier Ltd
ISSN: 135-9835X
Institute: Kunststoffe und Verbundwerkstoffe M-11 
Type: (wissenschaftlicher) Artikel
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