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A coupled dissipation functional for modeling the functional fatigue in polycrystalline shape memory alloys

J. Waimann, P. Junker, K. Hackl

European Journal of Mechanics, A/Solids, 55, 110-121, (2016)

DOI: 10.1016/j.euromechsol.2015.08.001

Download: BibTEX

The pseudoelastic material behavior is one outstanding feature of shape memory alloys. This effect comes along with the forming of two plateaus in the stress/strain diagram of a tension test. Cyclic loading leads to a decrease particularly of the upper stress-plateau due to the evolution of plastic deformations which also implies fatigue of the material. In this work, we develop a variational material model which is able to predict the effect of fatigue using a novel approach for the dissipation potential that couples the evolutions of phase transformations and plastic strains. © 2015 Published by Elsevier Masson SAS.

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{"type":"article", "name":"j.waimann20162", "author":"J. Waimann and P. Junker and K. Hackl", "title":"A coupled dissipation functional for modeling the functional fatigue in polycrystalline shape memory alloys", "journal":"European Journal of Mechanics, A/Solids", "volume":"55", "OPTnumber":"", "OPTmonth":"2", "year":"2016", "OPTpages":"110-121", "OPTnote":"", "OPTkey":"Polycrystalline shape memory alloys, Functional fatigue, Combined Voigt/Reuß energy bound", "DOI":"10.1016/j.euromechsol.2015.08.001"}
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