Assessment of alternative joining techniques for Ti–6Al–4V/CFRP hybrid joints regarding tensile and fatigue strength
作者： Nikolai Kashaev , Volker Ventzke , Stefan Riekehr , Falk Dorn , Manfred Horstmann
DOI: 10.1016/J.MATDES.2015.04.051
关键词: Quasistatic loading 、 Materials science 、 Structural engineering 、 Composite material 、 Adhesive bonding 、 Welding 、 Titanium 、 Joint (geology) 、 Rivet 、 Fatigue limit 、 Ultimate tensile strength
摘要: Abstract CFRP and titanium joints are used in the aerospace industry. These materials usually joined by rivets which inserted into holes drilled through both materials. Conventional riveted hybrid of parts fail under quasi static loading due to uneven load distribution at rivets. Under cyclic loading, fatigue failure occurs mainly part because higher notch sensitivity. The aim this work is comparison different joining concepts terms stiffness, strength limit. First, laser riveting, here pins Nd:YAG beam welded Ti–6Al–4V parts. Second, conventional joint combined with adhesive bonding. Third, surface structuring enhance friction joint. Tensile tests as well fractographical examinations performed establish process–property–performance relationship joints. Laser riveting leads stiffness but equal strength, when compared Fatigue life improved implementation bonding structuring.
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