@book{19bdbcc326a64cfc906c9b043d1d72cf,
title = "Validation of methodology for selecting Charpy toughness criteria for old thin low strength steels",
abstract = "A methodology for selecting the minimum usage temperature for ferritic steels has previously been developed. The methodology is based on the statistical correlation between fracture toughness and Charpy-V, and has been verified for modern extra high strength steels. Here, the methodology is verified experimentally with different test geometries for old (post Second World War quality) thin low strength steels. Based upon the investigations the following can be concluded: 1. The validation of the methodology as a whole appears successful. 2. The methodology seems capable of producing reliable {"}best{"} and {"}safe{"} estimates with equal accuracy. 3. Compared to extra high strength steels, the methodology shows a tendency to treat low strength steel somewhat more conservatively, but not unrealistically. 4. The methodology appears superior to all previous similar methodologies. 5. The results show that a single transition temperature toughness requirement of 28/27 J can well be applied for these types of old steels. 6. For the first time it is possible to develop rules that treat low and high strength steels impartially and are capable of giving accurately defined safety levels for different situations.",
keywords = "steels, mechanical properties, strength, testing, validation, toughness, stress, plasticity, fracture strength, Charpy impact tests",
author = "Kim Wallin",
note = "Project code: VAL4764 ",
year = "1995",
language = "English",
isbn = "951-38-4654-7",
series = "VTT Publications",
publisher = "VTT Technical Research Centre of Finland",
number = "216",
address = "Finland",
}