Author(s)

P.P. Colombo, A. Garzillo, M. Meriggi, C. Ponzoni & C. Sampietri

Abstract

Damage evaluation of serviced components by means of 'user's subroutines' for ABAQUS P.P. Colombo," A. Garzillo,* M. Meriggi,* C. Ponzoni,* C. Sampietri* " CISE, Innovative Technologies SpA, Segrate, Milan, Italy * ENEL SpA, CRAM, Milan, Italy ABSTRACT In the present paper the results obtained from some creep and damagement analyses of a header component (10 CrMo 910 steel), using a 3-D finite element scheme, are shown. The following calculations have been performed: • creep and uncoupled damage evaluation under "in service" conditions (540 °C and 18.5 MPa), simulating 130000 hours; • creep and coupled damage evaluation under the same conditions; • creep and uncoupled damage evaluation under "test" condition (620 °C and 18.5 MPa) using "exposured" material data, simulating 2000 hours. The creep analyses have been performed by the computer code ABAQUS, and the uncoupled damage evaluation has been carried out by means of the ABAQUS post proce

Keywords