MAGNETIC AMORPHOUS MICROWIRES AS EMBEDDED STRESS SENSORS IN FUNCTIONAL MATERIALS
Abstract
Considerable efforts have been made to develop non-destructive methods for testing internal stress/strain condition of polymer composite materials. A new method of monitoring internal stresses is presented. The method can be referred to as embedded sensing technique, where the sensing element is a glass-coated ferromagnetic microwire with a specific magnetic anisotropy. With a diameter 10–100 microns, the microwire does not affect the structural integrity. When the microwire is remagnetized the sharp voltage is induced which is characterized by high frequency harmonics. The amplitude of these harmonics sensitively depends on various stresses. The experimental results are analyzed using simple magnetostatic models.
About the Authors
M. M. SALEM
National University of Science and Technology MISIS
Russian Federation
Russian Federation
M. G. NEMATOV
National University of Science and Technology MISIS
Russian Federation
Russian Federation
A. UDDIN
National University of Science and Technology MISIS
Russian Federation
Russian Federation
S. V. PODGORNAYA
National University of Science and Technology MISIS
Russian Federation
Russian Federation
L. V. PANINA
National University of Science and Technology MISIS; Institute for Design Problems in Microelectronics RAS
Russian Federation
Russian Federation
A. T. MORCHENKO
National University of Science and Technology MISIS
Russian Federation
Russian Federation
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