Determination of plastic anisotropy in sheet material

Details Determination of plastic anisotropy in sheet material Determination of plastic anisotropy in sheet material

1982-01-21

1984-02-21

Kreitman, Stephen A.

Measuring and testing

Vibration

By mechanical waves

73772, G01N 2900

Patent

active

044322348

ABSTRACT:
This invention relates to a method of determining the average plastic strain ratio (r) of sheet material of known density. This is effected by computation utilizing an empirical relationship existing for the material between r and an elastic property thereof, the elastic property being manifest as the velocity of mechanical vibrations propagated in the sheet.

REFERENCES:
patent: 3812709 (1974-05-01), Benson et al.
R. T. Smith, "Stress-Induced Anistropy in Solids the Acousto-Elastic Effect," Ultrasonics, Jul.-Sep. 1963, pp. 135-147.

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