Application of selective laser melting (SLM) for hybrid aerospace structures

Nguyen, A, Brandt, M, Orifici, A and Feih, S 2014, 'Application of selective laser melting (SLM) for hybrid aerospace structures', in Raj Das, Sabu John (ed.) Proceedings of the 8th Australasian Congress on Applied Mechanics 2014 (ACAM 8), Melbourne, Australia, 24-28 November 2014, pp. 280-288.


Document type: Conference Paper
Collection: Conference Papers

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Title Application of selective laser melting (SLM) for hybrid aerospace structures
Author(s) Nguyen, A
Brandt, M
Orifici, A
Feih, S
Year 2014
Conference name ACAM 8
Conference location Melbourne, Australia
Conference dates 24-28 November 2014
Proceedings title Proceedings of the 8th Australasian Congress on Applied Mechanics 2014 (ACAM 8)
Editor(s) Raj Das, Sabu John
Publisher Engineers Australia
Place of publication Barton, Australia
Start page 280
End page 288
Total pages 9
Abstract The study investigates the adhesion properties of SLM manufactured Titanium (Ti-6Al-4V) alloy surfaces for metal-metal and metal-composite hybrid joints using Mode I Double Cantilever Beam (DCB) specimens. The results indicate that the inherent micro-topology of the SLM surface is able to maximise the bonding potential of the adhesive. With the introduction of additional macro-surface features, the crack path is deflected from a straight mode I path and follows the design of the surface features. Selected macro-features were found to increase the fracture toughness by up to 50%. Finite element analysis indicates that the rise in fracture toughness is due to two factors: 1) the increase in the effective crack path length and 2) a shift from mode I to mode II crack growth.
Subjects Composite and Hybrid Materials
Keyword(s) Cantilever beams
Cracks
Finite element method
Fracture
Functionally graded materials
Copyright notice © 2014 Engineers Australia
ISBN 9781922107350
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