RT info:eu-repo/semantics/conferenceObject T1 Implementation of the GTN Damage Model to Simulate the Small Punch Test on Pre-Cracked Specimens A1 Alegre Calderón, Jesús Manuel A1 Cuesta Segura, Isidoro Iván A1 Bravo Díez, Pedro Miguel K1 Small Punch Test K1 Pre-cracked Specimen K1 Gurson-Tvergaard Damage Model K1 Ductile Fracture K1 Interrupted Test K1 15.5PH steel K1 Resistencia de materiales K1 Strength of materials K1 Ensayos (Tecnología) K1 Testing AB Nowadays, pre-cracked Small Punch Tests (P-SPT) are used in those cases where there is not enough material for conducting conventional tests. In this paper, P-SPT has been used to determine the fracture properties of the 15.5PH steel, using the micromechanical model, developed by Gurson-Tvergaard-Needleman (GTN). The effect of variation of damage parameters on the numerical simulation has been analyzed. This numerical simulation is based on the sequential adjustment of the experimental load-displacement curves obtained from P-SPT. Interrupted test have been also developed in order to know the cracking process during loading and the damage evolution until fracture. PB Elsevier SN 1877-7058 YR 2011 FD 2011 LK http://hdl.handle.net/10259/4203 UL http://hdl.handle.net/10259/4203 LA eng NO 11th International Conference on the Mechanical Behavior of Materials (ICM11), Como (Italy), 2011 NO Project MCI Ref: MAT2008-06879-C03-03/MAT DS Repositorio Institucional de la Universidad de Burgos RD 19-abr-2024