2026-08-31T03:57:30Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/42032021-11-02T12:04:49Zcom_10259_4201com_10259_5086com_10259_2604col_10259_4202

00925njm 22002777a 4500 dc Alegre Calderón, Jesús Manuel author Cuesta Segura, Isidoro Iván author Bravo Díez, Pedro Miguel author 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. 1877-7058 http://hdl.handle.net/10259/4203 10.1016/j.proeng.2011.04.166 Small Punch Test Pre-cracked Specimen Gurson-Tvergaard Damage Model Ductile Fracture Interrupted Test 15.5PH steel Implementation of the GTN Damage Model to Simulate the Small Punch Test on Pre-Cracked Specimens