Method for deriving information regarding stress from a stressed ferromagnetic material

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

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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:

Jiles, David C ^[1]

Ames, IA

Issue Date:: 1991-04-30

Research Org.:: Ames Lab., Ames, IA (United States); 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)

Patent Classifications (CPCs):: G - PHYSICS G01 - MEASURING G01L - MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE

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G - PHYSICS G01 - MEASURING G01L - MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
G01L1/125 - {by using magnetostrictive means

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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.

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                    Jiles, David C. Method for deriving information regarding stress from a stressed ferromagnetic material.  United States.

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                    Jiles, David C. Tue .  
        "Method for deriving information regarding stress from a stressed ferromagnetic material".  United States.  https://www.osti.gov/servlets/purl/867798.

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@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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Method for deriving information regarding stress from a stressed ferromagnetic material

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