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The influence of stress path on thermoremanent magnetization
Author(s) -
Martin Randolph J.,
Noel James S.
Publication year - 1988
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/gl015i005p00507
Subject(s) - thermoremanent magnetization , magnetization , materials science , stress (linguistics) , hydrostatic equilibrium , compression (physics) , hydrostatic stress , hydrostatic pressure , shear stress , condensed matter physics , stress path , geology , shear (geology) , remanence , composite material , magnetic field , mechanics , physics , thermodynamics , finite element method , linguistics , philosophy , quantum mechanics
The influence of stress path on thermoremanent magnetization (TRM) was studied experimentally. Specimens with a TRM were cyclically loaded under three different conditions: hydrostatic pressure, uniaxial compression, or uniaxial strain. Initial loading resulted in a large decrease in magnetization at stress and permanent demagnetization at the termination of the stress cycle. The observed magnetic changes were much larger for non‐hydrostatic loading than for hydrostatic compression. With subsequent loading to the same peak stress over the same path, stress induced variations in magnetization were smaller and tended to become reproducible; shear stress produced greater magnetic perturbations.