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801 views
07:25 Feb-02-2010

rama

NDT Inspector, -
Kuwait,
Joined Jan 2010
13
Elastic modulei measurement

Dear All,
it is possible to measure elasticity of a material by UT?
if it is whats the procedure sirs?
regards
rama

 
09:55 Feb-02-2010

Wieslaw Bicz

Engineering,
PBP Optel sp. z o.o.,
Poland,
Joined Feb 2009
239
Re: Elastic modulei measurement In Reply to rama at 07:25 Feb-02-2010 (Opening).

It is possible. If you know both sound speeds (longitudinal and transversal waves) and density, you can calculate all elastic parameters (Lame constants) of the material.

There are many possibilities to do it. Ultrasonic refractometry is one of them, spectroscopy methods, combination of acoustical and optical methods (proposed by Bergmann), etc.

 
14:57 Feb-02-2010

Tom Nelligan

Engineering,
retired,
USA,
Joined Nov 1998
390
Re: Elastic modulei measurement In Reply to rama at 07:25 Feb-02-2010 (Opening).

We have an application note on the subject that explains the basic procedure. Please see the link below. As Mr. Bicz write, you need to measure longitudinal and shear (transverse) wave velocity, and know the density of the material, and enter those values into the formula in the app note.

http://www.olympus-ims.com/en/ndt-application/183-id.209715270.html

 
20:08 Feb-02-2010

ram

NDT Inspector, -
Kuwait,
Joined Jan 2010
13
Re: Elastic modulei measurement In Reply to Tom Nelligan at 14:57 Feb-02-2010 .

Thank you very much sirs!!!!!!!!!!!!!!
ragards
rama

 


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