Bk. Neale et al., THE IMPLICATIONS OF IMPOSING THE ANDERSON AND DODDS SIZE REQUIREMENT IN FRACTURE-TOUGHNESS TESTING PROCEDURES, Fatigue & fracture of engineering materials & structures, 17(8), 1994, pp. 931-938
Anderson and Dodds have recently introduced a test specimen size requi
rement in the transition regime which they suggest must be satisfied f
or the cleavage fracture resistance to be size independent. This paper
assesses the implications of imposing the size requirement in fractur
e toughness testing standards. It is shown that imposing the size requ
irement can lead to a size dependence in fracture toughness data. This
observation raises the general question of whether even existing size
requirements for the lower shelf and upper shelf regimes are capable
of giving size independent data.