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FRACTURE TOUGHNESS TESTING OF WELD METAL: RESULTS OF A EUROPEAN ROUND ROBIN
Author(s) -
Hadley I.,
Dawes M. G.
Publication year - 1996
Publication title -
fatigue and fracture of engineering materials and structures
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.887
H-Index - 84
eISSN - 1460-2695
pISSN - 8756-758X
DOI - 10.1111/j.1460-2695.1996.tb01032.x
Subject(s) - fracture toughness , round robin test , materials science , welding , reproducibility , composite material , fracture (geology) , toughness , metallurgy , fracture mechanics , structural engineering , forensic engineering , engineering , mathematics , statistics
— This paper presents the results of a collaborative project on fracture mechanics toughness testing of weldments, carried out by twelve European laboratories. Each collaborator was asked to measure the fracture toughness of a steel weldment, notched in the weld metal. Tests were carried out at two temperatures, using three test geometries, in accordance with a standard procedure. Results are reported in terms of the effect of temperature and specimen geometry on fracture toughness (mean value and standard deviation), the extent of inter‐laboratory reproducibility of results and the effect of “invalid” results on the measured value of fracture toughness. As a result of the study, it is recommended that a number of the current validity criteria in BS7448:Part 1 should be relaxed in Part 2 when applied to tests on weld metal.