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Published June 2002 | public
Journal Article

On beams made of a phase-transforming material


This paper presents a theory for the mechanics of beams made of single crystals of shape memory alloys. The behavior of such beams can be quite unexpected and complicated due to the presence and propagation of phase boundaries. It is shown that the usual laws of mechanics do not fully determine the propagation of phase boundaries and that there is a need for additional constitutive information in the form of a kinetic relation. A simple experiment to measure this kinetic relation is proposed. Finally, a strategy to use such beams for propulsion at small scales is presented.

Additional Information

© 2002 Elsevier Science Ltd. Received 13 February 2002. We gratefully acknowledge the partial financial support of the Air Force Office of Scientific Research through a MURI grant (F 49620-98-1-0433).

Additional details

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October 24, 2023