Original scientific paper

Testing samples size effect on notch toughness of structural steels

B. Strnadel ; Faculty of Metallurgy and Materials Engineering, VŠB-TU Ostrava, Czech Republic
K. Matocha ; Materials and Metallurgical Research, Ltd., Ostrava-Vítkovice, Czech Republic

Abstract

In the paper notch toughness assessment of full scale testing samples (FS) form the upper bound toughness of sub-sized (SS) samples of structural carbon-manganese steels. The relations proposed by Schindler (2000) are in good agreement with experimental data. Empirical proportionality constant q* = 0,54 between notch toughness of full scale and sub-sized samples of studied structural steels agrees well with theoretically estimated constant q* = 0,50–0,54. More precise knowledge of the size effect of testing samples on temperature dependence of notch toughness requires an analysis of scatter in experimental data.

Keywords

structural carbon steel; notch toughness; upper bound; sample size; sub-sized sample

Hrčak ID:

38692

URI

https://hrcak.srce.hr/38692

Publication date:

1.10.2009.

Article data in other languages: croatian

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