I am trying to do the tensile test that i need for the following simulation part of my research.
But after doing the test, there is so much noise in my data, (I used an extensometer)
how can I eliminate them?
why the noise exist ?
and should I use curve fitting with Matlab to obtain the best relation between strain and stress?
Does anybody have some advice?
Thanks
Dear Ms.,
This kind of 'noise' is normal in tensile testing. It depends of some specific condisions, specially about the specimen.
A simple smoothing algorithms can solve yout problem (https://www.mathworks.com/help/signal/ug/signal-smoothing.html)
Dear Guilherme Ferreira Gomes thank you for answering and the useful link.
Dear Marc Schmieger Thank you, sure I will test it.
"...why the noise exist ?"
Maybe this noise belongs to the kind of measurement of the elongation of the probe. An encoder still moves between two different stages or the A/D-converter generates quantization noise.
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