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- since 1996 -

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Technical Discussions
Massimiliano Pau
Teacher, -
Univ. of Cagliari, Dept. of Mechanical Engineering, Italy, Joined Sep 2002, 25

Massimiliano Pau

Teacher, -
Univ. of Cagliari, Dept. of Mechanical Engineering,
Italy,
Joined Sep 2002
25
07:58 Jun-27-2006
Acoustic impedance of SBR rubber

Dear colleagues

does anyone knows the acoustic impedance value of the styrene-butadiene rubber (SBR)? Or, more simply, do you know if someone performed ultrasonic tests on tyre treads?

Best regards

Massimiliano Pau


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

Tom Nelligan

Engineering,
retired,
USA,
Joined Nov 1998
390
00:26 Jun-27-2006
Re: Acoustic impedance of SBR rubber
The Panametrics-NDT group at Olympus NDT has a lot of experience with ultrasonic testing of rubber tires. Most of our customers have been interested in measuring thickness of rubber over reinforcing plies, but we have also done through transmission flaw detection to find tread separation. We have an application note on the subject on our web site. What exactly do you need to do?

The acoustic impedance of butyl rubber is approximately 2 MRayl.



    
 
 

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