Zh. Li et al., A STUDY OF THE INTERNAL PARAMETERS OF DUCTILE DAMAGE THEORY, Fatigue & fracture of engineering materials & structures, 17(9), 1994, pp. 1075-1087
In this paper the Rousselier ductile damage model is used to simulate
the softening behaviour of notched bars and crack growth in a pre-crac
ked specimen of an A508 pressure vessel steel. The effect of the inter
nal parameters needed to represent the damage on the calculated result
s is studied. The interactions between these parameters and their effe
cts on the calibration process are discussed. The effect of the cell s
ize on the values of the damage parameters obtained during calibration
and on the response of the specimens is briefly reviewed.