Wrapped Tow Reinforced (WrapToR) trusses are a family of novel, ultra-efficient composite structures. They are produced by wrapping wet fibre tow around longitudinal members to form a continuous, co-bonded truss geometry. This paper details the development of a three degree-of-freedom winding machine for the manufacture of these continuously wound composite truss structures. Automating the winding process allowed faster and more consistent production of truss samples with better control over process variables than achievable by hand winding. Using this machine, test samples were manufactured to investigate the effect of a proposed design improvement: twisting of the carbon fibre tow during winding to create circular shear web members. Testing in three-point bending found this technique to improve stiffness and load carrying capabilities by 8 and 7 % respectively. A comparison with conventional carbon fibre pultruded tubes found the WrapToR truss configuration offered 16 % less mass, over double the load carrying capability and 6.7 times the flexural rigidity.
|Title of host publication||ECCM 2018 - 18th European Conference on Composite Materials|
|Publisher||Applied Mechanics Laboratory|
|Publication status||Published - 20 Jun 2018|
|Name||ECCM 2018 - 18th European Conference on Composite Materials|
- Truss structure
- Mechanical testing
- Filament winding
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23 Mar 2021
Student thesis: Doctoral Thesis › Doctor of Philosophy (PhD)File