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Charpy Key Comparison SIM.M.F-S3 - Instrumented Charpy Tests on Low- and High-Energy Specimens - Final Report

Published

Author(s)

Enrico Lucon, Renato Reis Machado

Abstract

This report describes a CIPM Key Comparison through the SIM/MWG-7 organization, concerning instrumented impact testing of low-energy (20 J) and high-energy (100 J) Charpy V-notch specimens. In this Comparison, various instrumented and non-instrumented data were obtained from instrumented Charpy tests performed at the pilot (NIST) and participant (INMETRO) laboratories using the same instrumented Charpy striker and acquisition system. The use of instrumented absorbed energy (Wt), rather than absorbed energy yielded by the impact machine encoder or dial gage (KV), guarantees traceability to the International System and offers the promise of reducing bias between NMIs and simplifying comparisons between certification systems.
Citation
BIPM

Keywords

Absorbed energy, Charpy, CIPM Key Comparison, instrumented impact testing.

Citation

Lucon, E. and Reis Machado, R. (2022), Charpy Key Comparison SIM.M.F-S3 - Instrumented Charpy Tests on Low- and High-Energy Specimens - Final Report, BIPM, [online], https://www.bipm.org/documents/20126/48150863/SIM.M.F-S3.pdf/d7cafb71-1b94-7078-f4ee-de773d76af34?t=1645092246764 (Accessed August 18, 2022)
Created February 1, 2022, Updated May 10, 2022