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Potential ambiguity in the determination of the plastic strain range component in LCF testing

โœ Scribed by F.A. Kandil

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
143 KB
Volume
21
Category
Article
ISSN
0142-1123

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โœฆ Synopsis

Most low cycle fatigue testing is carried out under total strain controlled limits and the plastic strain component is determined retrospectively after the test by considering the hysteresis loop closest to the mid-life. Currently there is no universal method for determining the plastic strain range.

It is demonstrated that variability in excess of 30% can arise in the values of the plastic strain range calculated according to the different methods adopted by current Standards and commercial testing software.

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