VALVERDE GONZÁLEZ, ANGEL DE JESÚS, Kumar, Pavan , Quintanas-Corominas, Adria , Reinoso, Jose
Si
Eng. Fract. Mech.
Article
Científica
19/06/2024
001246574300001
The parametrization of shell structures using the so-called solid shell concept has been widely exploited in the last decades. This trend is mainly attributed to the relatively simple kinematic treatment of solid shells in the corresponding finite element formulation in conjunction with the use of unmodified three-dimensional material laws, among other aspects. In the present investigation, we provide a comprehensive finite element implementation of solid shells incorporating: (i) the use of Enhanced Assumed Strain (EAS) and the Assumed Natural Strain (ANS) methods to prevent locking issues, (ii) the phase-field approach for triggering fracture events, and (iii) some representative inelastic material models. The current modular implementation has been integrated into the FE package ABAQUS via the user-defined routine UEL. Several representative examples demonstrate the applicability of the present formulation.
Phase-field model; Inelastic material behavior; Shell structures; Locking