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A novel low-cost manufacturing process is introduced, referred to as ‘Fabric Steering’. By manipulating biaxial fabrics, curvilinear fibre paths can be created to manufacture variable stiffness panels, similar to those produced using Automated Fibre Placement . With low equipment costs and the capability to steer multiple-layers of fabrics simul...
A Matlab®-based numerical tool, ‘SteerFab’, is developed to predict steered fibre patterns and to analyse the mechanical properties of the resulting variable stiffness panels using the finite element software, AbaqusTM. Based on trellis shear kinematics , both the steered fibre pattern and the shape of the corresponding initial undeformed sheet...
A force-directed algorithm was developed to create representative geometrical models of fibre distributions in directed carbon fibre preforms. Local permeability values were calculated for the preform models depending on the local fibre orientation, distribution and volume fraction. The effect of binder content was incorporated by adjusting the pri...
In recent years, Automated Fibre Placement has been applied in manufacturing variable stiffness panels containing continuously changing fibre paths. The aim is to achieve superior mechanical properties, compared to straight-fibre laminates [1,2]. This paper proposes a novel low-cost manufacturing technique, referred to here as ‘manual 2D fabric ste...
This paper presents the development of a low-cost water-soluble core material, which is suitable for producing hollow composite structures via high pressure moulding processes, such as compression moulding and resin transfer moulding. The bulk material of the core is sodium chloride (NaCl), which is held together by a water-soluble trehalose binder...