Options
Magnetic Shape Memory Alloys: Phenomenological Constitutive Modeling and Analysis
Journal
Lecture Notes in Mechanical Engineering
ISSN
21954356
Date Issued
2022-01-01
Author(s)
Kumar, Avinash
Haldar, Krishnendu
Abstract
Increasing demand for a lighter and more durable material with sensing and actuation functionality, Magnetic Shape Memory Alloys (MSMA) are promising members, among many other smart materials. This study investigates the Magneto-Thermo-Mechanical (MTM) behavior of MSMA through a 3D phenomenological constitutive modeling thermodynamically consistent way. A specific Helmholtz free energy function is considered after identifying the external and internal state variables. The evolution equations of the internal state variables are defined by proposing a transformation function. The model parameters are calibrated through different MTM loading conditions. Selective model simulations demonstrate the magnetic field coupling with the actuation strain.
Subjects