The toughness module of the PERFECT platform: A predictive tool for the fracture toughness of RPV steels

Overview of the RPV-2 and INTERN-1 packages: From primary damage to microplasticity

“…With this output, the Toughness module can be used to estimate the resulting hardening and the ductile to brittle transition temperature shift [5]. The origins of the hardness in RPV steels are multiple and complex, the main contributions can be listed as follows [37]: Dislocation dynamics (DD) studies [37] support the assumption that the first four contributions are not affected by irradiation, as a first approximation.…”

“…For extensive technical details on the codes, the reader should refer to their respective documentations (which are provided within Perspycace [4], the graphical user interface allowing to operate three end-products of the PERFECT platform: RPV-2, INTERN-1 and ToughnessModule [5]) and to the comprehensive suite of articles of this special edition. An overview of the RPV-2 package is given on Fig.…”

“…To estimate the increase of critical resolved shear stress due to the pinning of these defects on gliding dislocations, the HARD module will use either an analytical formula for dipole interactions of randomly dispersed obstacles or a simplified single dislocation 2D glide simulation based on the Foreman and Makin formalism [8]. From these results, the hardening and ductile to brittle transition temperature shift can be computed with the use of the ToughnessModule which is presented in a separate article of this issue [5].…”