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- since 1996 -

Hillger NDT GmbH
was founded in 1984 and develops special ultrasonic imaging systems for high-tech materials.
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Technical Discussions
rama
NDT Inspector, -
Kuwait, Joined Jan 2010, 13

rama

NDT Inspector, -
Kuwait,
Joined Jan 2010
13
07:25 Feb-02-2010
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

 
 Reply 
 
Wieslaw Bicz
Engineering,
PBP Optel sp. z o.o., Poland, Joined Feb 2009, 276

Wieslaw Bicz

Engineering,
PBP Optel sp. z o.o.,
Poland,
Joined Feb 2009
276
09:55 Feb-02-2010
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.

 
 Reply 
 
Tom Nelligan
Engineering,
retired, USA, Joined Nov 1998, 390

Tom Nelligan

Engineering,
retired,
USA,
Joined Nov 1998
390
14:57 Feb-02-2010
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

 
 Reply 
 
ram
NDT Inspector, -
Kuwait, Joined Jan 2010, 13

ram

NDT Inspector, -
Kuwait,
Joined Jan 2010
13
20:08 Feb-02-2010
Re: Elastic modulei measurement
In Reply to Tom Nelligan at 14:57 Feb-02-2010 .

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

 
 Reply 
 

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