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Question: I am following ASTM D638-10, and my 'strain at break' results are nearly half of what other labs are reporting for the same material. What is wrong?
Elayne (Schneebacher) Gordonov On Nov 13, 2013 03:10 PM
Poisson’s Ratio has proven to be a challenging calculation for obtaining both repeatable and accurate results. To improve repeatability, we typically recommend grips that provide consistent clamping pressure, such as pneumatic side acting grips.
Elayne (Schneebacher) Gordonov On Oct 08, 2013 02:10 PM
Thermoplastic polymers may exhibit a change in color under tension. This phenomenon is known as stress whitening and may occur in both semi-crystalline and amorphous thermoplastics.
What is really happening here?
Elayne (Schneebacher) Gordonov On Jun 07, 2013 02:10 PM