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Science Forum Index » Materials Forum » Commercial lab for elastic property measurements
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| C. Joseph Long |
 Posted: Sat Sep 06, 2003 7:35 pm |
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Does anyone know of a commercial lab, preferably in the US, that can
measure the elastic properties of metals by the speed-of-sound
(resonance) method, as opposed to a tensile test?
Thanks,
Joe |
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| Pittsburgh Pete |
| Posted: Sun Sep 07, 2003 1:40 pm |
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"C. Joseph Long" <j-long@sc.rr.com> wrote in message news:<uXv6b.8856$AU.477284@twister.southeast.rr.com>...
Quote: Does anyone know of a commercial lab, preferably in the US, that can
measure the elastic properties of metals by the speed-of-sound
(resonance) method, as opposed to a tensile test?
Thanks,
Joe
--------------------------
Joe:
Did you have a particular method in mind, like ASTM E1875 or C1198?
I think what you are looking for is a test called Dynamic Mechanical
Analysis (also known as DMA). Look at www.datapointlabs.com under
Experimental Capabilities and then under Thermal Test Instruments look
at the description of the Perkin Elmer DMA 7e.
For other standards and labs, look in the ASTM web site and search for
Standards or in the Laboratory directory at www.astm.org
You also can try looking up dma or dynamic mechanical analysis in a
google search.
Pittsburgh Pete
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| Steve Roberts |
| Posted: Mon Sep 08, 2003 3:16 pm |
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"C. Joseph Long" <j-long@sc.rr.com> wrote in message
news:uXv6b.8856$AU.477284@twister.southeast.rr.com...
Quote: Does anyone know of a commercial lab, preferably in the US, that can
measure the elastic properties of metals by the speed-of-sound
(resonance) method, as opposed to a tensile test?
http://www.grindosonic.com/ make such equipment.
We've got one of their set-ups. Works very nicely provided you have big
enough samples. (We often don't, which is a bit of a bummer, but there you
are...).
Not hugely expensive, for lab kit - if you want to do more than a few tests,
it might be worthwhile to buy one given what commercial rates are likely to
be for doing any sorts of tests (no, I don't get a commission!). Or they
could point you at someone who has a set in the US.
Steve |
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