Journal
INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING
Volume 85, Issue 4, Pages 219-227Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ijpvp.2007.09.003
Keywords
ductile tearing; local damage; numerical simulation
Ask authors/readers for more resources
In this study, the Gurson-Tvergaard-Needleman (GTN) model is used to investigate ductile tearing. The sensitivity of the model parameters has been examined from literature data. Three types of parameters have been reported: the constitutive parameters q(1), q(2) and q(3), the initial material and nucleation parameters and the critical and final failure parameters. Each parameter in this model has been analysed in terms of various results in the literature. Both experimental and numerical results have been obtained for notched round and CT specimens to characterize ductile failure in a NiCr steel (12NC6) with a small initial void volume fraction f(0) (f(0) = 0.001%). Ductile crack growth, defined by the J-Delta a curve, has been correctly simulated using the numerical calculations by adjusting the different parameters of the GTN model in the calibration procedure. (C) 2007 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available