Magnetoelastic buckling: Theory vs. experiment - Paper presents an investigation of the conditions which must be satisfied in an experimental program in order to check theoretical predictions of magnetoelastic buckling fields

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Department of Mechanical Engineering-Engineering Mechanics


Existing theoretical values and experimental values of magnetoelastic critical buckling fields for ferromagnetic beams and plates differ by a factor of two. The usual theoretical treatment assumes that the plate (a) is immersed in an infinite uniform field, (b) is infinitely wide and long, and (c) is made of a linearly magnetic material. We present an experimental investigation, combined with a simple analysis, which determines specific criteria which must be satisfied by experimental programs in order to validate the three assumptions. It is shown that experimental arrangements which validate (a) and (c) are feasible, but not (b). Hence, there is need for improved theoretical treatments which take into account the finite size of the specimens.

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© 1976 Society for Experimental Mechanics, Inc. Publisher’s version of record: https://doi.org/10.1007/BF02328918

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Experimental Mechanics