NUMERICAL AND EXPERIMENTAL ANALYSES OF AUXETIC …paginas.fe.up.pt › ~iccs16 › CD › 121-160...
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16th International Conference on Composite Structures ICCS 16 A. J. M. Ferreira (Editor) © FEUP, Porto, 2011 NUMERICAL AND EXPERIMENTAL ANALYSES OF AUXETIC STRUCTURES BASED ON RECYCLED RUBBER T.A. Aparecida * , T.H. Panzera * , F. Scarpa † , A.L. Christoforo * , L.C. Brandão * , C.H. Lauro * . * Universidade Federal de São João Del Rei, Praça Frei Orlando, 170, Centro, São João Del Rei, Minas Gerais, Brasil. e-mail: [email protected], web page: http://www.ufsj.edu.br † Advanced Composites Centre for Innovation and Science, University of Bristol, UK. e-mail: [email protected], web page: http://www.bris.ac.uk/ Key words: recycling, rubber wastes, particulated composites, numerical analysis, tensile testing. Summary. The growing demand for tyres has been every year exacerbating environmental problems due to indiscriminate disposal in nature, making a waste potentially harmful to public health. The addition of waste tyres as a dispersive phase in polymeric composites has been investigated, exhibiting mainly high toughness and moderate mechanical strength. The auxetic materials are multi re-entrant honeycomb structures assembled to achieve a negative Poisson´s ratio. The properties such as low density, high toughness and mechanical strength make them useful as body armour, packaging solutions, knee or elbow pads and robust shock absorbing materials. This work focus on the numerical and experimental analyses of the mechanical behaviour of sustainable composites moulded as auxetic structures. The auxetic composite made of rubber particles and polymeric matrix provided a low cost and high mechanical efficient solution in energy absorption applications. Figure 1 exhibits the polymeric model, the silicone mould and the auxetic sample based on recycled rubber. Figure 1. (a) Polymeric model, (b) silicone mould and (c) auxetic sample based on recycled rubber. (a) (b) (c) 15mm _____
Transcript of NUMERICAL AND EXPERIMENTAL ANALYSES OF AUXETIC …paginas.fe.up.pt › ~iccs16 › CD › 121-160...
16th International Conference on Composite Structures ICCS 16
A. J. M. Ferreira (Editor) © FEUP, Porto, 2011
NUMERICAL AND EXPERIMENTAL ANALYSES OF AUXETIC STRUCTURES BASED ON RECYCLED RUBBER
T.A. Aparecida*, T.H. Panzera*, F. Scarpa†, A.L. Christoforo*, L.C. Brandão*, C.H. Lauro*. * Universidade Federal de São João Del Rei,
Praça Frei Orlando, 170, Centro, São João Del Rei, Minas Gerais, Brasil. e-mail: [email protected], web page: http://www.ufsj.edu.br
† Advanced Composites Centre for Innovation and Science, University of Bristol, UK.
e-mail: [email protected], web page: http://www.bris.ac.uk/
Key words: recycling, rubber wastes, particulated composites, numerical analysis, tensile testing. Summary. The growing demand for tyres has been every year exacerbating environmental problems due to indiscriminate disposal in nature, making a waste potentially harmful to public health. The addition of waste tyres as a dispersive phase in polymeric composites has been investigated, exhibiting mainly high toughness and moderate mechanical strength. The auxetic materials are multi re-entrant honeycomb structures assembled to achieve a negative Poisson´s ratio. The properties such as low density, high toughness and mechanical strength make them useful as body armour, packaging solutions, knee or elbow pads and robust shock absorbing materials. This work focus on the numerical and experimental analyses of the mechanical behaviour of sustainable composites moulded as auxetic structures. The auxetic composite made of rubber particles and polymeric matrix provided a low cost and high mechanical efficient solution in energy absorption applications. Figure 1 exhibits the polymeric model, the silicone mould and the auxetic sample based on recycled rubber.
Figure 1. (a) Polymeric model, (b) silicone mould and (c) auxetic sample based on recycled
rubber.
(a) (b) (c) 15mm _____
