The data from these two tests should never be reconstructed as one set of
data. They are very different tests. One is held rigidly on one side of
the notch and struck on the other side. The other supports the specimen
(not rigid support) on both sides of the notch and strikes the sample in the
middle. They are two different failures that you are trying to represent as
----- Original Message -----
From: Nigel Warden <Nigel.Warden@nationwideisp.net>
Sent: Wednesday, May 17, 2000 6:31 AM
Subject: impact strength unit conversion
> Dr Igor Shishkovsky,
> Thankyou for replying to my question. I am not quite sure what your reply
> telling me though.
> I have an example of what I am trying to achieve.
> American standard ASTM D256:-
> Impact strength test (Notched Izod) on laser sintered Polyamide material
> supplied by DTM corp. provides a result of 214 J/m.
> European standard DIN 53453:-
> Notched impact strength test (Charpy) on laser sintered Polyamide material
> supplied by EOS (GmbH) provides a result of 3 kJ/m2.
> How can I convert the EOS result into the same units as the DTM result?
> Which has the greater impact strength?
> Nigel Warden
> For more information about the rp-ml, see http://ltk.hut.fi/rp-ml/
For more information about the rp-ml, see http://ltk.hut.fi/rp-ml/
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