@article{1cff0a3394e2437d9a9c99534add2b7c,
title = "An extended thermomechanically coupled 3D rate-dependent model for pseudoelastic SMAs under cyclic loading",
abstract = "The model presented in this paper was shown to successfully account for cyclic loading effects and thermomechanical coupling in SMAs, including the influence of load rate and temperature on both the rate and value at saturation of the residual strain. It is the first such comprehensive model to be successfully utilized for relatively complex simulations involving SMAs subjected to multiaxial nonproportional loading, which possibly result in strong stress gradients such as fracture mechanics. In fact, it is known that the high stress concentration at the tip of a crack in SMAs results in increased martensite transformation and reorientation, which influence the growth of the crack. The derivation of the constitutive equations as well as the time integration and relevant algorithmic considerations are presented in detail. The model was shown to allow reasonable agreement with several sets of reference experimental and simulation data taken from the literature.",
keywords = "cyclic loading, nonproportional loading, residual strain, shape memory alloys, thermomechanical coupling",
author = "Xiaojun Gu and Weihong Zhang and Wael Zaki and Ziad Moumni",
note = "Funding Information: presented in detail. The model was shown to allow Acknowledgments reasonable agreement with several sets of reference exper- imental and simulation data taken from the literature. Some ProfWeihong Zhang would like to thank the National deviation was noted, however, which can likely be improved Key Research and Development Program of China in future work by considering the tensile–compressive (2017YFB1102800) and the National Natural Science Foun-asymmetry. This can be achieved following a procedure dation of China (11432011, 11620101002). DrWael Zaki similar to(Zaki 2010, Zaki et al 2011) in which the von would like to acknowledge the financial support of Khalifa Mises stress and strain equivalents are substituted with University through the KUIRF level 2 funding program. asymmetric stress and strain measures. ProfZiad Moumni would like to thank the 1000 Talent Plan and Northwestern Polytechnical University for their financial support. Publisher Copyright: {\textcopyright} 2017 IOP Publishing Ltd.",
year = "2017",
month = aug,
day = "15",
doi = "10.1088/1361-665X/aa7c36",
language = "British English",
volume = "26",
journal = "Smart Materials and Structures",
issn = "0964-1726",
publisher = "IOP Publishing Ltd.",
number = "9",
}