An. Cassanelli et La. Devedia, A PROPOSED METHOD FOR THE APPLICABILITY OF LOAD SEPARATION CONDITION IN PRECRACKED SPECIMENS, International journal of fracture, 83(2), 1997, pp. 167-173
In the present work a method to establish the effective applicability
range of load separation condition in precracked specimens which under
go crack growth during testing is proposed. This methodology is based
on theoretical and experimental considerations which lead to the appli
cation of a modified power law to represent load separation properties
in materials that exhibit a Ramberg-Osgood type law deformation behav
iour. The proper definition of the applicability range of the method a
llows J-R curve determination based in a single load - load point disp
lacement record.