Digital Repository, ECF14, Cracow 2002

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The Effective Resistance of Pipeline Steels to Running Ductile Factures; Modelling of Laboratory Test Data
R.M. ANDREWS, I.C. HOWARD, A. SHTERENLIKHT, J.R. YATES

Last modified: 2013-02-10

Abstract


This paper describes a technique that uses ductile damage mechanics tocross-correlate different experimental results. The cross-correlation is achieved via FEmodelling of the corresponding experiments and finding the best-fitted damage parameters.In this work FE modelling was performed in the Abaqus/Explicit code using the Gurson-Tvergaard (GT) damage model. The technique is demonstrated by extracting the shearassociatedenergy from the total energy, absorbed in the Charpy test. The shear-related GTparameters are tuned via FE modelling of a novel specimen aimed at simulating therunning slant crack in a pipeline. The CTOAC estimated from this specimen was 8o, whichis consistent with results, reported previously by others. GT parameters related to the flatfracture were tuned via FE modelling of notch tensile tests.

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