A Computer Simulation of the Nitinol Thermal Expansion under Fast Varying Working Conditions

Ferreira, P. Castelo; Pascoal-Faria, P.; Carreira, P.; Alves, N.

http://hdl.handle.net/10400.8/8147

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Abstract(s)

We discuss the setup of a simulation on ANSYS to predict the thermal expansion of parts made of Nitinol. A simulation is justified for working conditions in which the part heating is not ho-mogeneous originating a temperature gradient across the part section such that an analytical estimate for the part expansion cannot be calculated. We apply the simulation to the topological optimization of a square section geometry and a bullet geometry for water assisted injection molding. For the topo-logical optimization we consider as parameter the wall thickness and consider both the cases of fast varying temperature and fast varying temperature and pressure.

Keywords

Nitinol Thermal Expansion Coefficient Simulation

URI

http://hdl.handle.net/10400.8/8147

Citation

Castelo Ferreira, P., Pascoal-Faria, P., Carreira, P., & Alves, N. (2019). A Computer Simulation of the Nitinol Thermal Expansion under Fast Varying Working Conditions. Applied Mechanics and Materials, 890, 162–173. https://doi.org/10.4028/www.scientific.net/amm.890.162