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Fibre Composite Adaptive Systems
Fibre Composite Adaptive Systems
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Fibre Composite Adaptive Systems
Type
Fibre composite adaptive systems is a research project which emulates self-organisation processes in nature by developing a fibre composite that can sense, actuate and hence efficiently adapt to changing environmental conditions. Fibre composites which are anisotropic and heterogeneous offer the possibility for local variations in their material properties. Embedded fibre optics would be used to sense multiple parameters and shape memory alloys integrated in a fibre composite material for actuation. The definition of the geometry, both locally and globally would complement the adaptive functions and hence the system would display ’Integrated Functionality’.
Inspiration:
‘Thigmo-morphogenesis’ refers to the changes in shape, structure and material properties of biological organisms that are produced in response to transient changes in environmental conditions. This property can be observed in the movement of sunflowers, bone structure and sea urchins. These are all growth movements or slow adaptations to changes in specific conditions that occur due to the nature of the material: fibre composite tissue. Natural organisms have advanced sensing devices and actuation strategies which are coherent morpho-mechanical systems with the ability to respond to environmental stimulus.
Development:
Its performative abilities and intelligence spring from the integrated logics of its material behaviour, fibre organisation, topology definition and the overall morpho-mechanical strategy. The basic composite consists of glass fibres and a polymer matrix. Sensing is carried out by embedded fibre optics which can simultaneously sense strain, temperature and humidity, informing the topology to dynamically adapt to the changes. Geometrically, the material system is defined as a multi-layered tessellation made out of a continuous surface with varying porosity, density, illumination, self-shading and so on. Actuation is carried out by shape memory alloy strips which alter their shape by rearranging their micro-molecular organization from austenitic and martensitic states. A strategic proliferation of these strips through a rational geometry renders several permutation and combinations creating multiple states of equilibrium, thus enabling continuous dynamic adaptation of the structure.
Inspiration:
‘Thigmo-morphogenesis’ refers to the changes in shape, structure and material properties of biological organisms that are produced in response to transient changes in environmental conditions. This property can be observed in the movement of sunflowers, bone structure and sea urchins. These are all growth movements or slow adaptations to changes in specific conditions that occur due to the nature of the material: fibre composite tissue. Natural organisms have advanced sensing devices and actuation strategies which are coherent morpho-mechanical systems with the ability to respond to environmental stimulus.
Development:
Its performative abilities and intelligence spring from the integrated logics of its material behaviour, fibre organisation, topology definition and the overall morpho-mechanical strategy. The basic composite consists of glass fibres and a polymer matrix. Sensing is carried out by embedded fibre optics which can simultaneously sense strain, temperature and humidity, informing the topology to dynamically adapt to the changes. Geometrically, the material system is defined as a multi-layered tessellation made out of a continuous surface with varying porosity, density, illumination, self-shading and so on. Actuation is carried out by shape memory alloy strips which alter their shape by rearranging their micro-molecular organization from austenitic and martensitic states. A strategic proliferation of these strips through a rational geometry renders several permutation and combinations creating multiple states of equilibrium, thus enabling continuous dynamic adaptation of the structure.
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