Prediction of the DT41J and DKIc,100 shifts due to irradiation for an A508 pressure vessel steel based on local approach to fracture

C. Bouchet; B. Tanguy; J. Besson; S. Bugat

Digital Repository, ECF15, Stockolm 2004

C. Bouchet, B. Tanguy, J. Besson, S. Bugat

Last modified: 2013-02-08

Abstract

A material model integrating a description of viscoplasticity, ductile damage and brittle fractureis used to simulate both the impact (Charpy) test and the toughness (CT) fracture test. The modelis calibrated on the Charpy data obtained on an unirradiated A508 Cl.3 steel. It is then appliedto irradiated material assuming that irradiation affects solely hardening. Comparison with Charpyenergy data for different amounts of irradiation shows that irradiation probably also affects brittlefracture. The model is then used to predict the DT K Ic100shifts for different levels of irradiation.

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