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Journal of Applied Mechanics and Technical Physics

2002 year, number 1

Possibility of evaluation of strength of metals and alloys by a nonintrusive ultrasonic method

L. B. Zuev, B. S. Semukhin, A. G. Lunev
Institute of Strength Physics and Material Science,
Siberian Division, Russian Academy of Sciences, Tomsk 634021

Abstract

The dependence of the propagation
velocity of ultrasonic waves on the
acting stress in plastically deformable
polycrystalline metals and alloys is
examined. The relationship between the
acting stress and the velocity of
ultrasound is found to be linear; this
dependence is typical of all materials
studied. A method is proposed for
determining the time resistance to
breakdown of materials (ultimate
strength)for the case of deformation in
the region of small plastic strains
without failure of the specimens.
P. 168-170