Metalurgija, Vol. 48 No. 4, 2009.
Izvorni znanstveni članak
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
Sažetak
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.
Ključne riječi
structural carbon steel; notch toughness; upper bound; sample size; sub-sized sample
Hrčak ID:
38692
URI
Datum izdavanja:
1.10.2009.
Posjeta: 4.725 *