2000
DOI: 10.1016/s0927-0256(99)00084-1
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Finite element modeling of cyclic thermal response of shape memory alloy wires with variable material properties

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Cited by 21 publications
(5 citation statements)
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“…Some works dealing with the response of the SMA have been reported in recent years. Bhattacharyya et al [20] reported the influence of the material parameters on the thermal response of the SMA using the numerical method. They found that for short wires, the assumption of constant thermal conductivity underestimated the actuation and overestimated the cycle time significantly, that for long wires, the thermal conductivity effect was diminished whereas the electrical resistivity effect was very similar to that for the short wires.…”
Section: Introductionmentioning
confidence: 99%
“…Some works dealing with the response of the SMA have been reported in recent years. Bhattacharyya et al [20] reported the influence of the material parameters on the thermal response of the SMA using the numerical method. They found that for short wires, the assumption of constant thermal conductivity underestimated the actuation and overestimated the cycle time significantly, that for long wires, the thermal conductivity effect was diminished whereas the electrical resistivity effect was very similar to that for the short wires.…”
Section: Introductionmentioning
confidence: 99%
“…where U is the internal energy, WINCOND is the conduction entering power (3), WOUTCOND is conduction exiting power (3), WCONV is convective power (3), WEL is the generated electric power (3) and WMEC is the mechanical power [12].…”
Section: Energy Equilibriummentioning
confidence: 99%
“…The boundary condition on the surfaces of the prosthesis can be expressed by (11) with h b being an apparent thermal convection coefficient. The above approximation allows us to use equation (11) directly in ordinary thermal analysis software for the thermal evaluation of the prosthesis.…”
Section: Simplified Bio-heat Equationmentioning
confidence: 99%
“…So far, only a few studies have discussed the thermal responses of the SMA wires [11] and the micro-machined SMA actuators [12,13]. In the present paper, a simplified model [14,15], which can take the latent heat effect of the SMAs into account, was used in the numerical simulation of the thermal responses of the artificial sphincter.…”
Section: Introductionmentioning
confidence: 99%