NiTi-polyimide composites prepared using thermal imidization process

0462167 - FZÚ 2017 RIV US eng J - Článek v odborném periodiku
Vokoun, David - Sysel, P. - Heller, Luděk - Kadeřávek, L. - Svatuška, Michal - Goryczka, T. - Kafka, Vratislav - Šittner, Petr
NiTi-polyimide composites prepared using thermal imidization process.
Journal of Materials Engineering and Performance. Roč. 25, č. 5 (2016), 1993-1999. ISSN 1059-9495. E-ISSN 1544-1024
Grant CEP: GA ČR GC15-13174J; GA ČR GA14-15264S
Institucionální podpora: RVO:68378271 ; RVO:68378297
Klíčová slova: actuator * composite * model * NiTi * polyimide * residual * stress
Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
Impakt faktor: 1.331, rok: 2016

We manufactured NiTi plate-polyimide composite samples and analyzed their thermomechanical behavior. The residual stresses formed in the composite result from the shift of transformation temperatures and shape changes during thermal cycling. We demonstrate the use of finite element analysis for modeling the shape changes. The shape changes result from the difference in coefficients of thermal expansion and from the changes of Young’s modulus and of the coefficient of thermal expansion in the NiTi shape memory alloy.

Trvalý link: http://hdl.handle.net/11104/0261670