Method and system for determining axial modulus

Details Method and system for determining axial modulus Method and system for determining axial modulus

1995-12-18

1997-04-29

Williams, Hezron E.

Measuring and testing

Vibration

Mechanical impedance

73579, 73581, G01N 300, G01H 1300

Patent

active

056251467

ABSTRACT:
A method is provided for determining the axial modulus of an elongate matal sample of mass density .sup..rho. and length L. The first end of the sample is driven longitudinally at a frequency of excitation .sup..omega.. The second end of the sample opposite the first end may or may not be under tension. At the frequency of excitation .sup..omega., the longitudinal displacement and longitudinal force at the first and second ends of the sample are determined. The axial modulus is calculated for any frequency as a function of mass density .sup..rho., length L, frequency of excitation .sup..omega., and longitudinal displacement and longitudinal force at the first and second ends.

REFERENCES:
patent: 4418573 (1983-12-01), Madigosky et al.
patent: 5363701 (1994-11-01), Lee et al.
patent: 5365457 (1994-11-01), Madigosky
patent: 5533399 (1996-07-01), Gibson et al.

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