Publications de Emiliano Campitelli

Finite element modeling of the WC-10 wt.% Co thermal stresses: Build-up and phase specific strain response during cyclic loading

Several finite element models of the morphology of WC-10 wt.% Co were employed to reproduce the build-up of thermal residual stresses as well as the phase specific strain during loading-unloading in compression. The different models differ only in their ge ...

Elsevier Sci Ltd2015

Numerical investigation by finite element simulations of the ball punch test: Application to tempered martensitic steels

Philippe Spätig, Emiliano Campitelli

The effects of the post-yield behaviour on the shape of small ball punch test (SBPT) curves were investigated with finite element simulations from which the load-deflection curves were extracted. We have shown the general yield load defined on the ball pun ...

Elsevier2009

Plastic flow properties and fracture toughness characterization of unirradiated and irradiated tempered martensitic steels

Philippe Spätig, Raul Alejandro Bonadé, Emiliano Campitelli, Pablo Federico Mueller

We investigate the plastic flow properties at low and high temperature of the tempered martensitic steel Eurofer97. We show that below room temperature, where the Peierls friction on the screw dislocation is active, it is necessary to modify the usual Tayl ...

2007

Assessment of plastic flow and fracture properties with small specimen test techniques for IFMIF-designed specimens

Nadine Baluc, Philippe Spätig, Raul Alejandro Bonadé, Emiliano Campitelli

The primary mission of the international fusion material irradiation facility (IFMIF) is to generate a material database to be used for the design of various components, for the licensing and for the assessment of the safe operation of a demonstration fusi ...

IOP Publishing Ltd2005

Assessment of irradiation-hardening on Eurofer97' and Zircaloy 2 with punch tests and finite-element modeling

Philippe Spätig, Emiliano Campitelli

We present an assessment of the mechanical constitutive behavior after irradiation for a tempered martensitic steel, Eurofer97', and for Zircaloy by means of small-ball punch tests. For that purpose we use a finite-element model of the punch test device. W ...

2005

Assessment of mechanical properties in unirradiated and irradiated zircaloys and steels with non-standard tests and finite element calculations

Emiliano Campitelli

Nuclear materials have been successfully employed in commercial fission reactors for many decades. Research and material development for advanced fission system and future thermo-nuclear fusion reactors have acquired maturity while great challenges remain ...

EPFL2005