An SMA Rod Element based on the Co-rotational Formulation for Nonlinear Static Analysis of Tensegrity Structures

S Faroughi (Urmia University of Technology, Iran), HH Khodaparast, MI Friswell (Swansea University) & SH Hosseini (Urmia University of Technology, Iran)

Journal of Intelligent Material Systems and Structures, Vol. 28, No. 1, January 2017, pp. 35-46

Abstract

In this paper a Shape Memory Alloy (SMA) rod element is derived based on the co-rotational formulation. In the co-rotational approach, the rigid body modes are removed from the total deformations by employing a local coordinate system at element level, and hence the major part of geometric nonlinearity is isolated. The linear SMA rod element is developed by using an SMA constitutive model together with the small strain framework employed by the co-rotational approach. The one dimensional SMA model is adopted to calculate both the pseudo-elastic response and the shape memory effects. The new formulation is exploited to perform static analysis of tensegrity structures in order to study the accuracy and robustness of the proposed element and its capability to describe the structural response of SMA devices.

Paper Availability

This material has been published in the Journal of Intelligent Material Systems and Structures, Vol. 28, No. 1, January 2017, pp. 35-46, the only definitive repository of the content that has been certified and accepted after peer review. Copyright and all rights therein are retained by the Sage.


Link to paper using doi: 10.1177/1045389X16642532

Journal of Intelligent Material Systems and Structures