@inproceedings{2b4e9d65304d4fb0a489e741378cb012,
title = "Magnetostrictive composites for wireless stress sensing applications",
abstract = "This article presents a theoretical and experimental study of the relationships between the stress, strain, and magnetic field emitted from epoxy-based Terfenol-D composite materials that are intended for stress sensing applications. The experimental results were analyzed and simulated by a new model that accounts for the inherent hysteretic and non-linear mechanical behavior of the epoxy. The results reveal a critical strain above which the perfect bonding between the Terfenol-D and the epoxy does not valid. This critical strain is very close to the transition strain, at which non-180° domain switching is finished and the magnetization rotation becomes the dominant process in the Terfenol-D. Comparisons between simulations and experimental results, obtained at strains smaller than the critical strain, revealed that most of the hysteresis in the magnetic field versus stress curves is derived from the inherent hysteresis in the stress-strain behavior of the epoxy. These results encourage the search for a more suitable epoxy that provides better bonding with Terfenol-D and smaller hysteresis. Despite the drawbacks of the currently used epoxy, both measured and simulated curves showed that for strain amplitudes smaller than the critical strain, the magnetic field vs. stress curve is approximately linear and has a minor amount of hysteresis, making the sensor suitable for stress-sensing applications.",
keywords = "Magnetostrictive materials, Smart composites, Stress sensing, Terfenol-D",
author = "Alex Yoffe and Doron Shilo",
note = "Publisher Copyright: {\textcopyright} 2019 9th ECCOMAS Thematic Conference on Smart Structures and Materials, SMART 2019. All rights reserved. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.; 9th ECCOMAS Thematic Conference on Smart Structures and Materials, SMART 2019 ; Conference date: 08-07-2019 Through 11-07-2019",
year = "2019",
language = "الإنجليزيّة",
series = "9th ECCOMAS Thematic Conference on Smart Structures and Materials, SMART 2019",
publisher = "International Center for Numerical Methods in Engineering",
pages = "1414--1426",
editor = "Ayech Benjeddou and Nazih Mechbal and Jean-Francois Deu",
booktitle = "9th ECCOMAS Thematic Conference on Smart Structures and Materials, SMART 2019",
}