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Proceedings Paper

Magnetization changes induced by low cycle fatigue both in the geomagnetic field and the magnetic-free environment
Author(s): En Yang; Luming Li
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Paper Abstract

It's widely accepted that stress concentration and deformation caused by processing will induce local magnetic field abnormality. However, what role the geomagnetic environment act in this phenomenon is a problem causing people's concern all the time. In this paper, annealed samples were designed to remove the non uniform distribution of magnetic field resulted by processing; local stress concentration and deformation were implemented on samples by bending manually in magnetic-free space; comparison of magnetic aberration were made between the geomagnetic field and magnetic-free space after deformation. It was found that geomagnetic environment plays the leading effect on above magnetic abnormality phenomenon, and the magnitude of aberration was found to vary with materials, especially the carbon content.

Paper Details

Date Published: 19 May 2005
PDF: 8 pages
Proc. SPIE 5767, Nondestructive Evaluation and Health Monitoring of Aerospace Materials, Composites, and Civil Infrastructure IV, (19 May 2005); doi: 10.1117/12.599081
Show Author Affiliations
En Yang, Tsinghua Univ. (United States)
Luming Li, Tsinghua Univ. (United States)


Published in SPIE Proceedings Vol. 5767:
Nondestructive Evaluation and Health Monitoring of Aerospace Materials, Composites, and Civil Infrastructure IV
Peter J. Shull; Andrew L. Gyekenyesi; Aftab A. Mufti, Editor(s)

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