Applications, Manufacturing Methods and Failure Modes of Titanium-Carbon Hybrid Composites

Dickson, Jessica (2013). Applications, Manufacturing Methods and Failure Modes of Titanium-Carbon Hybrid Composites B.Sc Thesis, School of Engineering, The University of Queensland.

       
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Author Dickson, Jessica
Thesis Title Applications, Manufacturing Methods and Failure Modes of Titanium-Carbon Hybrid Composites
School, Centre or Institute School of Engineering
Institution The University of Queensland
Publication date 2013
Thesis type B.Sc Thesis
Supervisor Martin Veidt
Total pages 75
Language eng
Subjects 0913 Mechanical Engineering
0901 Aerospace Engineering
Formatted abstract
The science of materials is a forever expanding field of research, exploring the improvement of materials for superior performance products and their practical integration into modern infrastructure. This document presents an experimental investigation into an emerging hybrid composite that combines the superior strength of carbon fibres with the improved fracture toughness and high temperature durability of titanium for an exceedingly high performance material. This was a preliminary investigation completed as a platform for future investigations to be launched from. It presents prior research into the applications and manufacturing of the hybrid material in its various forms, but concentrates specifically on the ‘laminate’ form of the material to be used most predominantly in the aerospace industry. The form of the material is classed as a fibre metal laminate or FML. The Grade II CP Ti/ Carbon-Fibre Epoxy Pre-Preg specimens manufactured through handlayup and oven curing techniques used in this investigation were placed under tensile tests and showed an increase in tensile strength (at first ply failure) of up to ~32% when compared to a currently available FML, GLARE (glass-aluminium-reinforced epoxy). Failure modes of the test specimens showed some consistency when compared to traditional pure fibre reinforced polymers but highlighted the major design concerns in hybrids – namely the titanium/carbon-epoxy interface and its bond strength. Further investigation for the immediate future should be based on the impact and fatigue testing of the material using the manufacturing methodology specified in this investigation due to the intended use of this material in the aerospace industry. Although this material presents cost and manufacturing concerns, it shows an immense amount of promise for aerospace applications and offers a much sought after expansion in capabilities when related to thermal and structural loading.
Keyword hybrid composite

Document type: Thesis
Collection: UQ Theses (non-RHD) - UQ staff and students only
 
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Created: Tue, 02 Dec 2014, 14:04:04 EST by Ahmed Taha Siddiqui on behalf of Scholarly Communication and Digitisation Service