Patent ID: 7590495
Filing Date: 2009-09-15
Classification: G01M

Abstract:
1. A method for calculating material properties of a material of interest comprising the steps of: determining a dilatational wavespeed by: conducting a vertical vibration test of a first piece of the material having a first thickness to obtain first transfer function data; conducting a vertical vibration test of a second piece of the material having a second thickness to obtain second transfer function data, wherein said second thickness is twice said first thickness; and calculating the dilatational wavespeed from said first transfer function and said second transfer function; determining a shear wavespeed by: conducting a horizontal vibration test of a first piece of the material having a first thickness to obtain first shear transfer function data; conducting a horizontal vibration test of a second piece of the material having a second thickness to obtain second shear transfer function data, wherein said second thickness is twice said first thickness; calculating the shear wavespeed from said first shear transfer function, said second shear transfer function and said dilatational wavespeed; and providing said calculated shear wavespeed and said calculated dilatational wavespeed from said steps of calculating as the material properties.