Abstract
In order to prove that the technique is capable of giving reproducible results the complete stress-strain relations for two nearly identical Celanese fibres have been obtained. The fibres differed somewhat in cross-section area. This introduces a difference in rate of stressing. A correction for this has been developed and applied. In the plastic region where pronounced shear slip is expected the stress-strain curve is found to be made up of a series of straight line segments, along any given, one of which the strain. hardening is proportional to the elongation. A change in rate of strain introduces errors which the simple Maxwell relaxation law cannot account for.
Published Version
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