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Title: Method for resonant measurement

A method of measurement of objects to determine object flaws, Poisson's ratio (.sigma.) and shear modulus (.mu.) is shown and described. First, the frequency for expected degenerate responses is determined for one or more input frequencies and then splitting of degenerate resonant modes are observed to identify the presence of flaws in the object. Poisson's ratio and the shear modulus can be determined by identification of resonances dependent only on the shear modulus, and then using that shear modulus to find Poisson's ratio using other modes dependent on both the shear modulus and Poisson's ratio.
 [1];  [2];  [3]
  1. (5201 Rio Grande Blvd., N.W., Albuquerque, NM 87107)
  2. (Rte. 4, Box 258 Tano Rd., Sante Fe, NM 87501)
  3. (396 Connie Ave., White Rock, NM 87544)
Issue Date:
OSTI Identifier:
Rhodes, George W. (5201 Rio Grande Blvd., N.W., Albuquerque, NM 87107);Migliori, Albert (Rte. 4, Box 258 Tano Rd., Sante Fe, NM 87501);Dixon, Raymond D. (396 Connie Ave., White Rock, NM 87544) LANL
Patent Number(s):
US 5495763
Contract Number:
Research Org:
Los Alamos National Laboratory (LANL), Los Alamos, NM
Country of Publication:
United States
method; resonant; measurement; determine; flaws; poisson; ratio; sigma; shear; modulus; shown; described; frequency; expected; degenerate; responses; determined; input; frequencies; splitting; modes; observed; identify; presence; identification; resonances; dependent; shear modulus; resonant mode; /73/