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Possibility of chaos in internal friction experiments of martensites

Bharathi, MS and Ananthakrishna, G (1999) Possibility of chaos in internal friction experiments of martensites. In: Physica A, 270 (1-2). pp. 159-164.

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Wuttig and Suzuki's model on anelastic nonlinearities in solids in the vicinity of martensite transformations is analysed numerically. This model shows chaos even in the absence of applied forcing field as a function of a temperature dependent parameter. Even though the model exhibits sustained oscillations as a function of the amplitude of the forcing term, it does not exactly capture the features of the experimental time series. We have improved the model by adding a symmetry breaking term. The improved model shows period doubling bifurcation as a function of the amplitude of the forcing term. The solutions of our improved model shows good resemblance with the nonsymmetric period four oscillation seen in the experiment

Item Type: Journal Article
Publication: Physica A
Publisher: Elsevier Science
Additional Information: The copyright belongs to Elsevier Science
Keywords: Martensite transformation;Anelastic nonlinearities;Internal friction;Chaos;Free energy
Department/Centre: Division of Chemical Sciences > Materials Research Centre
Date Deposited: 17 Jul 2007
Last Modified: 06 May 2011 05:53
URI: http://eprints.iisc.ac.in/id/eprint/10154

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