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Alegre Calderón, Jesús Manuel Cuesta Segura, Isidoro Iván Bravo Díez, Pedro Miguel 2016-08-29T10:07:08Z 2016-08-29T10:07:08Z 2011 1877-7058 http://hdl.handle.net/10259/4203 10.1016/j.proeng.2011.04.166 11th International Conference on the Mechanical Behavior of Materials (ICM11), Como (Italy), 2011 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. Project MCI Ref: MAT2008-06879-C03-03/MAT application/pdf eng Elsevier Procedia Engineering. 2011, v. 10, p. 1007-1016 http://dx.doi.org/10.1016/j.proeng.2011.04.166 info:eu-repo/grantAgreement/MICINN/MAT2008-06879-C03-03/MAT Attribution-NonCommercial-NoDerivs 3.0 Unported http://creativecommons.org/licenses/by-nc-nd/3.0 info:eu-repo/semantics/openAccess Small Punch Test Pre-cracked Specimen Gurson-Tvergaard Damage Model Ductile Fracture Interrupted Test 15.5PH steel Resistencia de materiales Ensayos (Tecnología) Strength of materials Testing Implementation of the GTN Damage Model to Simulate the Small Punch Test on Pre-Cracked Specimens info:eu-repo/semantics/conferenceObject info:eu-repo/semantics/publishedVersion