Abstract
Measurement of stress based on the magnetoelastic interaction effect in ferromagnetic materials relies on a change in permeability due to the stress. A method for quantitatively evaluating the stress-permeability relation was proposed by combining measured magnetic flux density near a specimen with nonlinear analysis of the magnetic field by the finite-element method. First, the flux density near the specimen was measured in a low magnetic field independent of the detecting system. Next, the permeability was modeled by a linear function of the flux density. Also, the permeability was modeled to relate it with the stress in a linear form. Finally, the stress-permeability relation was determined quantitatively by comparing the measurement with the nonlinear analysis of the magnetic field based on the model of permeability.
| Original language | English |
|---|---|
| Pages (from-to) | 1617-1623 |
| Number of pages | 7 |
| Journal | Transactions of the Japan Society of Mechanical Engineers Series A |
| Volume | 60 |
| Issue number | 575 |
| DOIs | |
| Publication status | Published - 1994 |
Keywords
- Detecting System
- Finite-Element Method
- Low Magnetic Field
- Magnetic Flux Density
- Magnetoelastic Interaction
- Nondestructive Inspection
- Nonlinear Problem
- Permeability
- Stress
ASJC Scopus subject areas
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering