21 Papers
52 Citations
L. Heller is an academic researcher from Academy of Sciences of the Czech Republic. The author has contributed to research in topics: Deformation (engineering) & Shape-memory alloy. The author has an hindex of 6, co-authored 21 publications.
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Papers
Young’s Modulus of Austenite and Martensite Phases in Superelastic NiTi Wires
TL;DR: In this paper, it was shown that the low value of the Young's modulus in tension is due to the combination of the unique coincidence of elastic anisotropy of the B19′ martensite characterized by the low elastic constant C55, austenite drawing texture, and strong Martensite texture due to selection under tensile stress.
Exploiting NiTi shape memory alloy films in design of tunable high frequency microcantilever resonators
TL;DR: In this article, a phase transforming NiTi SMA film sputtered on the common elastic substrate material is used to tune the Young's modulus and the interlayer stress of the NiTi film by temperature.
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An original architectured NiTi silicone rubber structure for biomedical applications.
Thierry Rey,Jean-Benoit Le Cam,Grégory Chagnon,Denis Favier,Marie Rebouah,Florence Razan,Eric Robin,Pierre Didier,L. Heller,Sylvain Faure,Kateřina Janouchová +10 more
TL;DR: Results open a new way of investigations for architectured NiTi-silicone structures for biomechanical applications as well as improving the adhesion between NiTi and silicone rubber by an adhesion promoter or plasma treatment.
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Experimentally validated constitutive model for NiTi-based shape memory alloys featuring intermediate R-phase transformation: A case study of Ni48Ti49Fe3
TL;DR: In this paper, an enhanced constitutive model for NiTi-based alloys, which incorporates R-phase as a distinctive phase with loading-dependent transformation strain, was proposed.
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