Improved thermodynamic model for magnetic shape memory alloys

Alex B. Waldauer, Heidi P Feigenbaum, Constantin Ciocanel, Nickolaus M. Bruno

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Magnetic shape memory alloys (MSMAs) are a class of materials that can exhibit up to 10% recoverable strain as a result of the application of either magnetic field or compressive stress. This unique property makes MSMAs potentially suitable for commercial applications such as sensors, power harvesters, or actuators. Before any commercial applications are fully realized, effective models capable of accurately predicting the magneto-mechanical behavior of MSMAs need to be developed. This paper builds on an existing thermodynamic based constitutive model for MSMAs by accounting for the three-dimensional nature of the demagnetization phenomenon. In particular, the importance of using a demagnetization factor that comes from a solution to the three-dimensional magneto-static boundary value problem is highlighted. Also, the magnetic field present in directions other than that applied because of demagnetization is included in the model. Finally, this work proposes a more flexible means of calibrating thermodynamic based constitutive models for MSMAs.

Original languageEnglish (US)
Article number094015
JournalSmart Materials and Structures
Volume21
Issue number9
DOIs
StatePublished - Sep 2012

Fingerprint

shape memory alloys
Shape memory effect
Demagnetization
Thermodynamics
demagnetization
thermodynamics
Constitutive models
Magnetic fields
Harvesters
calibrating
Compressive stress
magnetic fields
boundary value problems
Boundary value problems
Actuators
actuators
magnetic properties
sensors
Sensors

ASJC Scopus subject areas

  • Signal Processing
  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics
  • Civil and Structural Engineering
  • Condensed Matter Physics
  • Mechanics of Materials
  • Materials Science(all)

Cite this

Improved thermodynamic model for magnetic shape memory alloys. / Waldauer, Alex B.; Feigenbaum, Heidi P; Ciocanel, Constantin; Bruno, Nickolaus M.

In: Smart Materials and Structures, Vol. 21, No. 9, 094015, 09.2012.

Research output: Contribution to journalArticle

@article{f8c968d7900b4fc18fa0a6f764480af8,
title = "Improved thermodynamic model for magnetic shape memory alloys",
abstract = "Magnetic shape memory alloys (MSMAs) are a class of materials that can exhibit up to 10{\%} recoverable strain as a result of the application of either magnetic field or compressive stress. This unique property makes MSMAs potentially suitable for commercial applications such as sensors, power harvesters, or actuators. Before any commercial applications are fully realized, effective models capable of accurately predicting the magneto-mechanical behavior of MSMAs need to be developed. This paper builds on an existing thermodynamic based constitutive model for MSMAs by accounting for the three-dimensional nature of the demagnetization phenomenon. In particular, the importance of using a demagnetization factor that comes from a solution to the three-dimensional magneto-static boundary value problem is highlighted. Also, the magnetic field present in directions other than that applied because of demagnetization is included in the model. Finally, this work proposes a more flexible means of calibrating thermodynamic based constitutive models for MSMAs.",
author = "Waldauer, {Alex B.} and Feigenbaum, {Heidi P} and Constantin Ciocanel and Bruno, {Nickolaus M.}",
year = "2012",
month = "9",
doi = "10.1088/0964-1726/21/9/094015",
language = "English (US)",
volume = "21",
journal = "Smart Materials and Structures",
issn = "0964-1726",
publisher = "IOP Publishing Ltd.",
number = "9",

}

TY - JOUR

T1 - Improved thermodynamic model for magnetic shape memory alloys

AU - Waldauer, Alex B.

AU - Feigenbaum, Heidi P

AU - Ciocanel, Constantin

AU - Bruno, Nickolaus M.

PY - 2012/9

Y1 - 2012/9

N2 - Magnetic shape memory alloys (MSMAs) are a class of materials that can exhibit up to 10% recoverable strain as a result of the application of either magnetic field or compressive stress. This unique property makes MSMAs potentially suitable for commercial applications such as sensors, power harvesters, or actuators. Before any commercial applications are fully realized, effective models capable of accurately predicting the magneto-mechanical behavior of MSMAs need to be developed. This paper builds on an existing thermodynamic based constitutive model for MSMAs by accounting for the three-dimensional nature of the demagnetization phenomenon. In particular, the importance of using a demagnetization factor that comes from a solution to the three-dimensional magneto-static boundary value problem is highlighted. Also, the magnetic field present in directions other than that applied because of demagnetization is included in the model. Finally, this work proposes a more flexible means of calibrating thermodynamic based constitutive models for MSMAs.

AB - Magnetic shape memory alloys (MSMAs) are a class of materials that can exhibit up to 10% recoverable strain as a result of the application of either magnetic field or compressive stress. This unique property makes MSMAs potentially suitable for commercial applications such as sensors, power harvesters, or actuators. Before any commercial applications are fully realized, effective models capable of accurately predicting the magneto-mechanical behavior of MSMAs need to be developed. This paper builds on an existing thermodynamic based constitutive model for MSMAs by accounting for the three-dimensional nature of the demagnetization phenomenon. In particular, the importance of using a demagnetization factor that comes from a solution to the three-dimensional magneto-static boundary value problem is highlighted. Also, the magnetic field present in directions other than that applied because of demagnetization is included in the model. Finally, this work proposes a more flexible means of calibrating thermodynamic based constitutive models for MSMAs.

UR - http://www.scopus.com/inward/record.url?scp=84865976699&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84865976699&partnerID=8YFLogxK

U2 - 10.1088/0964-1726/21/9/094015

DO - 10.1088/0964-1726/21/9/094015

M3 - Article

VL - 21

JO - Smart Materials and Structures

JF - Smart Materials and Structures

SN - 0964-1726

IS - 9

M1 - 094015

ER -