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Title: Method for deriving information regarding stress from a stressed ferromagnetic material

Abstract

A non-destructive evaluation technique for deriving stress in ferromagnetic materials including deriving anhysteretic and hysteresis magnetization curves for the material in both unstressed and stressed states. The anhysteretic curve is expressed as a Langevin function. The stress is expressed as an equivalent magnetic field dependent on stress and change of magnetostriction with magnetization. By measurement of these bulk magnetic properties, stress can be derived.

Inventors:
 [1]
  1. (Ames, IA)
Issue Date:
Research Org.:
Ames Laboratory (AMES), Ames, IA; Iowa State University, Ames, IA (US)
OSTI Identifier:
867798
Patent Number(s):
5012189
Application Number:
07/354,819
Assignee:
Iowa State University Research Foundation, Inc. (Ames, IA) AMES
DOE Contract Number:  
W-7405-ENG-82
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; deriving; information; regarding; stress; stressed; ferromagnetic; material; non-destructive; evaluation; technique; materials; including; anhysteretic; hysteresis; magnetization; curves; unstressed; curve; expressed; langevin; function; equivalent; magnetic; field; dependent; change; magnetostriction; measurement; bulk; properties; derived; magnetic materials; magnetic field; materials including; magnetic material; magnetic properties; non-destructive evaluation; ferromagnetic material; information regarding; deriving information; /324/

Citation Formats

Jiles, David C. Method for deriving information regarding stress from a stressed ferromagnetic material. United States: N. p., 1991. Web.
Jiles, David C. Method for deriving information regarding stress from a stressed ferromagnetic material. United States.
Jiles, David C. Tue . "Method for deriving information regarding stress from a stressed ferromagnetic material". United States. https://www.osti.gov/servlets/purl/867798.
@article{osti_867798,
title = {Method for deriving information regarding stress from a stressed ferromagnetic material},
author = {Jiles, David C.},
abstractNote = {A non-destructive evaluation technique for deriving stress in ferromagnetic materials including deriving anhysteretic and hysteresis magnetization curves for the material in both unstressed and stressed states. The anhysteretic curve is expressed as a Langevin function. The stress is expressed as an equivalent magnetic field dependent on stress and change of magnetostriction with magnetization. By measurement of these bulk magnetic properties, stress can be derived.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1991},
month = {4}
}

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