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SMART Lab

Research website of the SMART Lab at Texas A&M University.

Texas A&M University College of Engineering

Codes


SMA User Material (UMAT) Subroutines for Abaqus*


ABAQUS Subroutine for the Implementation of Thermomechanical Constitutive Model for SMAs

Author: Dr. Anargyros Karakalas
Download: GitHub
Abaqus tutorial: ResearchGate

Accompanying Publication:
Karakalas, A.A., Machairas, T.T., Solomou, A.G., Saravanos, D.A., 2019. Modeling of partial transformation cycles of SMAs with a modified hardening function. Smart Mater. Struct. 28, 035014. https://doi.org/10.1088/1361-665X/aafcd9


A User-Defined Material Subroutine for Polycrystalline SMAs Under Large Deformations

Author: Dr. Lei Xu
Download: GitHub

Accompanying Publications:
Xu, L., Baxevanis, T., Lagoudas, D.C., 2019. A three-dimensional constitutive model for the martensitic transformation in polycrystalline shape memory alloys under large deformation. Smart Mater. Struct. 28, 074004. https://doi.org/10.1088/1361-665X/ab1acb

Xu, L., Solomou, A., Baxevanis, T., Lagoudas, D., 2021. Finite strain constitutive modeling for shape memory alloys considering transformation-induced plasticity and two-way shape memory effect. International Journal of Solids and Structures 221, 42–59. https://doi.org/10.1016/j.ijsolstr.2020.03.009


*Abaqus research license is required to use UMATs

Data Processing Tools for SMA Experiments


Automatic Shape Memory Alloy Data Analyzer (ASMADA)

Author: Matthew Kuner
Download: GitHub

Accompanying Publication:
Kuner, M.C., Karakalas, A.A., Lagoudas, D.C., 2021. ASMADA—A tool for automatic analysis of shape memory alloy thermal cycling data under constant stress. Smart Mater. Struct. 30, 125003. https://doi.org/10.1088/1361-665X/ac2de2

Micromechanics


On the Numerical Evaluation of Eshelby’s Tensor and Its Application to Elastoplastic Fibrous Composites

Author: Dr. Brian Lester
Download: Coming soon

Accompanying Publication:
Gavazzi, A.C., Lagoudas, D.C., 1990. On the numerical evaluation of Eshelby’s tensor and its application to elastoplastic fibrous composites. Computational Mechanics 7, 13–19. https://doi.org/10.1007/BF00370053

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