EFFECT AND MEASUREMENT OF THE MACHINE COMPLIANCE IN THE MACRO RANGE OF INSTRUMENTED INDENTATION TEST

Christian Ullner, Erhard Reimann

Abstract

The contribution concerns the dominant source of uncertainty in the upper macro range of the instrumented indentation test. The strong effect of the machine compliance is demonstrated (including for machines with a displacement measurement which is related to the surface of the specimen). Four methods are applied for analyzing the experimental results up to 2500 N. The results show that the uncertainty of the compliance should be limited in ISO 14577 part 3.

Keywords

indentation, compliance, uncertainty

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PWC-2006-TC5-006u.pdf

DOI

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IMEKO TC

TC5 - Hardness Measurement

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