COMPARISON OF TWO TECHNIQUES FOR EVALUATING SPHERICAL INDENTATION DATA
DOI:
https://doi.org/10.14311/APP.2020.27.0136Keywords:
Automatic ball indentation, Oliver-Pharr method, pile-up, true stress-strain curveAbstract
Flow curves of 15Kh2MFA, Sv 08Kh19N10G2B and 08Kh18N10T steels used for fabrication of WWER-440 nuclear reactor pressure vessel and core internals were obtained using the automated ball indentation (ABI) test technique and compared with flow curves evaluated from the same measured load-displacement data and widely used Oliver-Pharr method. Differences in results obtained by both studied methods do not exceed 12 % and are attributed to the amount of material pile-up.Downloads
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Published
2020-06-11
How to Cite
Materna, A., Haušild, P., & Ondráček, J. (2020). COMPARISON OF TWO TECHNIQUES FOR EVALUATING SPHERICAL INDENTATION DATA. Acta Polytechnica CTU Proceedings, 27, 136–140. https://doi.org/10.14311/APP.2020.27.0136