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A STUDY OF THE INTERNAL PARAMETERS OF DUCTILE DAMAGE THEORY
Author(s) -
LI Z. H.,
BILBY B. A.,
HOWARD I. C.
Publication year - 1994
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.1460-2695.1994.tb00836.x
Subject(s) - materials science , pressure vessel , softening , calibration , internal pressure , structural engineering , composite material , engineering , mathematics , statistics
— In this paper the Rousselier ductile damage model is used to simulate the softening behaviour of notched bars and crack growth in a pre‐cracked specimen of an A508 pressure vessel steel. The effect of the internal parameters needed to represent the damage on the calculated results is studied. The interactions between these parameters and their effects on the calibration process are discussed. The effect of the cell size on the values of the damage parameters obtained during calibration and on the response of the specimens is briefly reviewed.